MPLS Mcast

 1 - interface-DPO
        Used in the Data-plane to change a packet's input interface
 2 - MPLS multicast FIB entry
        Same as a unicast entry but it links to a replicate not a load-balance DPO
 3 - Multicast MPLS tunnel
        Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to .
 4 - Resolve a path via a local label (of an mLDP LSP)
        For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP.
 5 - MPLS disposition path sets RPF-ID
        For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet.
 6 - RPF check with per-entry RPF-ID
       An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface.

Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3
Signed-off-by: Neale Ranns <nranns@cisco.com>

68 files changed, 3962 insertions, 1044 deletions

diff --git a/src/vnet/adj/adj.c b/src/vnet/adj/adj.c
index 90182006f60..36dfe500eb3 100644
--- a/src/vnet/adj/adj.c
+++ b/src/vnet/adj/adj.c
@@ -67,6 +67,10 @@ adj_alloc (fib_protocol_t proto)
     adj->lookup_next_index = 0;
     adj->ia_delegates = NULL;
 
+    /* lest it become a midchain in the future */
+    memset(&adj->sub_type.midchain.next_dpo, 0,
+           sizeof(adj->sub_type.midchain.next_dpo));
+
     ip4_main.lookup_main.adjacency_heap = adj_pool;
     ip6_main.lookup_main.adjacency_heap = adj_pool;
 
@@ -118,6 +122,9 @@ format_ip_adjacency (u8 * s, va_list * args)
     case IP_LOOKUP_NEXT_MCAST:
 	s = format (s, "%U", format_adj_mcast, adj_index, 0);
 	break;
+    case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
+	s = format (s, "%U", format_adj_mcast_midchain, adj_index, 0);
+	break;
     default:
 	break;
     }
@@ -180,6 +187,7 @@ adj_last_lock_gone (ip_adjacency_t *adj)
 			 adj->rewrite_header.sw_if_index);
 	break;
     case IP_LOOKUP_NEXT_MCAST:
+    case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
 	adj_mcast_remove(adj->ia_nh_proto,
 			 adj->rewrite_header.sw_if_index);
 	break;
@@ -338,6 +346,7 @@ adj_walk (u32 sw_if_index,
     FOR_EACH_FIB_IP_PROTOCOL(proto)
     {
         adj_nbr_walk(sw_if_index, proto, cb, ctx);
+        adj_mcast_walk(sw_if_index, proto, cb, ctx);
     }
 }
 
@@ -544,9 +553,9 @@ adj_show (vlib_main_t * vm,
  * [@0]
  * [@1]  glean: loop0
  * [@2] ipv4 via 1.0.0.2 loop0: IP4: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc
- * [@3] mpls via 1.0.0.2 loop0: MPLS_UNICAST: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc
+ * [@3] mpls via 1.0.0.2 loop0: MPLS: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc
  * [@4] ipv4 via 1.0.0.3 loop0: IP4: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc
- * [@5] mpls via 1.0.0.3 loop0: MPLS_UNICAST: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc
+ * [@5] mpls via 1.0.0.3 loop0: MPLS: 00:00:22:aa:bb:cc -> 00:00:11:aa:bb:cc
  * @cliexend
  ?*/
 VLIB_CLI_COMMAND (adj_show_command, static) = {
diff --git a/src/vnet/adj/adj.h b/src/vnet/adj/adj.h
index 32997c91f92..ed5eb1f1e88 100644
--- a/src/vnet/adj/adj.h
+++ b/src/vnet/adj/adj.h
@@ -81,6 +81,10 @@ typedef enum
   /** Multicast Adjacency. */
   IP_LOOKUP_NEXT_MCAST,
 
+  /** Multicast Midchain Adjacency. An Adjacency for sending macst packets
+   *  on a tunnel/virtual interface */
+  IP_LOOKUP_NEXT_MCAST_MIDCHAIN,
+
   IP_LOOKUP_N_NEXT,
 } __attribute__ ((packed)) ip_lookup_next_t;
 
@@ -107,6 +111,7 @@ typedef enum
     [IP_LOOKUP_NEXT_REWRITE] = "ip4-rewrite",    		\
     [IP_LOOKUP_NEXT_MCAST] = "ip4-rewrite-mcast",	        \
     [IP_LOOKUP_NEXT_MIDCHAIN] = "ip4-midchain",		        \
+    [IP_LOOKUP_NEXT_MCAST_MIDCHAIN] = "ip4-mcast-midchain",     \
     [IP_LOOKUP_NEXT_ICMP_ERROR] = "ip4-icmp-error",		\
 }
 
@@ -119,6 +124,7 @@ typedef enum
     [IP_LOOKUP_NEXT_REWRITE] = "ip6-rewrite",			\
     [IP_LOOKUP_NEXT_MCAST] = "ip6-rewrite-mcast",		\
     [IP_LOOKUP_NEXT_MIDCHAIN] = "ip6-midchain",			\
+    [IP_LOOKUP_NEXT_MCAST_MIDCHAIN] = "ip6-mcast-midchain",     \
     [IP_LOOKUP_NEXT_ICMP_ERROR] = "ip6-icmp-error",		\
     [IP6_LOOKUP_NEXT_HOP_BY_HOP] = "ip6-hop-by-hop",		\
     [IP6_LOOKUP_NEXT_ADD_HOP_BY_HOP] = "ip6-add-hop-by-hop",	\
diff --git a/src/vnet/adj/adj_internal.h b/src/vnet/adj/adj_internal.h
index 306686255b8..2c123c542a1 100644
--- a/src/vnet/adj/adj_internal.h
+++ b/src/vnet/adj/adj_internal.h
@@ -17,6 +17,7 @@
 #define __ADJ_INTERNAL_H__
 
 #include <vnet/adj/adj.h>
+#include <vnet/adj/adj_mcast.h>
 #include <vnet/ip/ip.h>
 #include <vnet/mpls/mpls.h>
 #include <vnet/adj/adj_l2.h>
@@ -87,11 +88,14 @@ adj_get_index (ip_adjacency_t *adj)
     return (adj - adj_pool);
 }
 
-extern void adj_nbr_update_rewrite_internal (ip_adjacency_t *adj,
-					     ip_lookup_next_t adj_next_index,
-					     u32 complete_next_index,
-					     u32 next_index,
-					     u8 *rewrite);
+extern void adj_nbr_update_rewrite_internal(ip_adjacency_t *adj,
+                                            ip_lookup_next_t adj_next_index,
+                                            u32 complete_next_index,
+                                            u32 next_index,
+                                            u8 *rewrite);
+extern void adj_midchain_setup(adj_index_t adj_index,
+                               adj_midchain_fixup_t fixup,
+                               adj_flags_t flags);
 
 extern ip_adjacency_t * adj_alloc(fib_protocol_t proto);
 
diff --git a/src/vnet/adj/adj_mcast.c b/src/vnet/adj/adj_mcast.c
index 4f678e43e80..755abfd4639 100644
--- a/src/vnet/adj/adj_mcast.c
+++ b/src/vnet/adj/adj_mcast.c
@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-#include <vnet/adj/adj.h>
+#include <vnet/adj/adj_mcast.h>
 #include <vnet/adj/adj_internal.h>
 #include <vnet/fib/fib_walk.h>
 #include <vnet/ip/ip.h>
@@ -129,6 +129,59 @@ adj_mcast_update_rewrite (adj_index_t adj_index,
     adj->rewrite_header.dst_mcast_mask = clib_host_to_net_u32(mask);
 }
 
+/**
+ * adj_mcast_midchain_update_rewrite
+ *
+ * Update the adjacency's rewrite string. A NULL string implies the
+ * rewirte is reset (i.e. when ARP/ND etnry is gone).
+ * NB: the adj being updated may be handling traffic in the DP.
+ */
+void
+adj_mcast_midchain_update_rewrite (adj_index_t adj_index,
+                                   adj_midchain_fixup_t fixup,
+                                   adj_flags_t flags,
+                                   u8 *rewrite,
+                                   u8 offset,
+                                   u32 mask)
+{
+    ip_adjacency_t *adj;
+
+    ASSERT(ADJ_INDEX_INVALID != adj_index);
+
+    adj = adj_get(adj_index);
+
+    /*
+     * one time only update. since we don't support chainging the tunnel
+     * src,dst, this is all we need.
+     */
+    ASSERT(adj->lookup_next_index == IP_LOOKUP_NEXT_MCAST);
+    /*
+     * tunnels can always provide a rewrite.
+     */
+    ASSERT(NULL != rewrite);
+
+    adj_midchain_setup(adj_index, fixup, flags);
+
+    /*
+     * update the adj's rewrite string and build the arc
+     * from the rewrite node to the interface's TX node
+     */
+    adj_nbr_update_rewrite_internal(adj, IP_LOOKUP_NEXT_MCAST_MIDCHAIN,
+                                    adj_get_mcast_node(adj->ia_nh_proto),
+                                    vnet_tx_node_index_for_sw_interface(
+                                        vnet_get_main(),
+                                        adj->rewrite_header.sw_if_index),
+                                    rewrite);
+
+    /*
+     * set the fields corresponding to the mcast IP address rewrite
+     * The mask must be stored in network byte order, since the packet's
+     * IP address will also be in network order.
+     */
+    adj->rewrite_header.dst_mcast_offset = offset;
+    adj->rewrite_header.dst_mcast_mask = clib_host_to_net_u32(mask);
+}
+
 void
 adj_mcast_remove (fib_protocol_t proto,
 		  u32 sw_if_index)
@@ -260,6 +313,24 @@ adj_mcast_interface_delete (vnet_main_t * vnm,
 
 VNET_SW_INTERFACE_ADD_DEL_FUNCTION(adj_mcast_interface_delete);
 
+/**
+ * @brief Walk the multicast Adjacencies on a given interface
+ */
+void
+adj_mcast_walk (u32 sw_if_index,
+                fib_protocol_t proto,
+                adj_walk_cb_t cb,
+                void *ctx)
+{
+    if (vec_len(adj_mcasts[proto]) > sw_if_index)
+    {
+        if (ADJ_INDEX_INVALID != adj_mcasts[proto][sw_if_index])
+        {
+            cb(adj_mcasts[proto][sw_if_index], ctx);
+        }
+    }
+}
+
 u8*
 format_adj_mcast (u8* s, va_list *ap)
 {
@@ -269,6 +340,8 @@ format_adj_mcast (u8* s, va_list *ap)
 
     s = format(s, "%U-mcast: ",
                format_fib_protocol, adj->ia_nh_proto);
+    if (adj->rewrite_header.flags & VNET_REWRITE_HAS_FEATURES)
+        s = format(s, "[features] ");
     s = format (s, "%U",
 		format_vnet_rewrite,
                 &adj->rewrite_header, sizeof (adj->rewrite_data), 0);
@@ -276,6 +349,28 @@ format_adj_mcast (u8* s, va_list *ap)
     return (s);
 }
 
+u8*
+format_adj_mcast_midchain (u8* s, va_list *ap)
+{
+    index_t index = va_arg(*ap, index_t);
+    CLIB_UNUSED(u32 indent) = va_arg(*ap, u32);
+    vnet_main_t * vnm = vnet_get_main();
+    ip_adjacency_t * adj = adj_get(index);
+
+    s = format(s, "%U-mcast-midchain: ",
+               format_fib_protocol, adj->ia_nh_proto);
+    s = format (s, "%U",
+		format_vnet_rewrite,
+		vnm->vlib_main, &adj->rewrite_header,
+                sizeof (adj->rewrite_data), 0);
+    s = format (s, "\n%Ustacked-on:\n%U%U",
+		format_white_space, indent,
+		format_white_space, indent+2,
+		format_dpo_id, &adj->sub_type.midchain.next_dpo, indent+2);
+
+    return (s);
+}
+
 
 static void
 adj_dpo_lock (dpo_id_t *dpo)
@@ -293,6 +388,11 @@ const static dpo_vft_t adj_mcast_dpo_vft = {
     .dv_unlock = adj_dpo_unlock,
     .dv_format = format_adj_mcast,
 };
+const static dpo_vft_t adj_mcast_midchain_dpo_vft = {
+    .dv_lock = adj_dpo_lock,
+    .dv_unlock = adj_dpo_unlock,
+    .dv_format = format_adj_mcast_midchain,
+};
 
 /**
  * @brief The per-protocol VLIB graph nodes that are assigned to a mcast
@@ -320,6 +420,31 @@ const static char* const * const adj_mcast_nodes[DPO_PROTO_NUM] =
 };
 
 /**
+ * @brief The per-protocol VLIB graph nodes that are assigned to a mcast
+ *        object.
+ *
+ * this means that these graph nodes are ones from which a mcast is the
+ * parent object in the DPO-graph.
+ */
+const static char* const adj_mcast_midchain_ip4_nodes[] =
+{
+    "ip4-mcast-midchain",
+    NULL,
+};
+const static char* const adj_mcast_midchain_ip6_nodes[] =
+{
+    "ip6-mcast-midchain",
+    NULL,
+};
+
+const static char* const * const adj_mcast_midchain_nodes[DPO_PROTO_NUM] =
+{
+    [DPO_PROTO_IP4]  = adj_mcast_midchain_ip4_nodes,
+    [DPO_PROTO_IP6]  = adj_mcast_midchain_ip6_nodes,
+    [DPO_PROTO_MPLS] = NULL,
+};
+
+/**
  * @brief Return the size of the adj DB.
  * This is only for testing purposes so an efficient implementation is not needed
  */
@@ -349,5 +474,10 @@ adj_mcast_db_size (void)
 void
 adj_mcast_module_init (void)
 {
-    dpo_register(DPO_ADJACENCY_MCAST, &adj_mcast_dpo_vft, adj_mcast_nodes);
+    dpo_register(DPO_ADJACENCY_MCAST,
+                 &adj_mcast_dpo_vft,
+                 adj_mcast_nodes);
+    dpo_register(DPO_ADJACENCY_MCAST_MIDCHAIN,
+                 &adj_mcast_midchain_dpo_vft,
+                 adj_mcast_midchain_nodes);
 }
diff --git a/src/vnet/adj/adj_mcast.h b/src/vnet/adj/adj_mcast.h
index 40d44313357..bfb0d6f6d11 100644
--- a/src/vnet/adj/adj_mcast.h
+++ b/src/vnet/adj/adj_mcast.h
@@ -26,6 +26,7 @@
 #define __ADJ_MCAST_H__
 
 #include <vnet/adj/adj_types.h>
+#include <vnet/adj/adj_midchain.h>
 
 /**
  * @brief
@@ -69,9 +70,35 @@ extern void adj_mcast_update_rewrite(adj_index_t adj_index,
                                      u32 mask);
 
 /**
+ * @brief
+ *  Update the rewrite string for an existing adjacecny and
+ *  Convert the adjacency into a midchain
+ *
+ * @param
+ *  The index of the adj to update
+ *
+ * @param
+ *  The new rewrite
+ */
+extern void adj_mcast_midchain_update_rewrite(adj_index_t adj_index,
+                                              adj_midchain_fixup_t fixup,
+                                              adj_flags_t flags,
+                                              u8 *rewrite,
+                                              u8 offset,
+                                              u32 mask);
+/**
+ * @brief Walk the multicast Adjacencies on a given interface
+ */
+extern void adj_mcast_walk (u32 sw_if_index,
+                            fib_protocol_t adj_nh_proto,
+                            adj_walk_cb_t cb,
+                            void *ctx);
+
+/**
  * @brief Format/display a mcast adjacency.
  */
 extern u8* format_adj_mcast(u8* s, va_list *ap);
+extern u8* format_adj_mcast_midchain(u8* s, va_list *ap);
 
 /**
  * @brief Get the sze of the mcast adj DB. Test purposes only.
diff --git a/src/vnet/adj/adj_midchain.c b/src/vnet/adj/adj_midchain.c
index 5756de4393d..a93a1c3e1b7 100644
--- a/src/vnet/adj/adj_midchain.c
+++ b/src/vnet/adj/adj_midchain.c
@@ -346,7 +346,7 @@ adj_get_midchain_node (vnet_link_t link)
 static u8
 adj_midchain_get_feature_arc_index_for_link_type (const ip_adjacency_t *adj)
 {
-  u8 arc = (u8) ~0;
+    u8 arc = (u8) ~0;
     switch (adj->ia_link)
     {
     case VNET_LINK_IP4:
@@ -393,17 +393,14 @@ adj_nbr_midchain_get_tx_node (ip_adjacency_t *adj)
 }
 
 /**
- * adj_nbr_midchain_update_rewrite
+ * adj_midchain_setup
  *
- * Update the adjacency's rewrite string. A NULL string implies the
- * rewrite is reset (i.e. when ARP/ND etnry is gone).
- * NB: the adj being updated may be handling traffic in the DP.
+ * Setup the adj as a mid-chain
  */
 void
-adj_nbr_midchain_update_rewrite (adj_index_t adj_index,
-				 adj_midchain_fixup_t fixup,
-				 adj_flags_t flags,
-				 u8 *rewrite)
+adj_midchain_setup (adj_index_t adj_index,
+                    adj_midchain_fixup_t fixup,
+                    adj_flags_t flags)
 {
     u32 feature_index, tx_node;
     ip_adjacency_t *adj;
@@ -413,16 +410,6 @@ adj_nbr_midchain_update_rewrite (adj_index_t adj_index,
 
     adj = adj_get(adj_index);
 
-    /*
-     * one time only update. since we don't support chainging the tunnel
-     * src,dst, this is all we need.
-     */
-    ASSERT(adj->lookup_next_index == IP_LOOKUP_NEXT_ARP);
-    /*
-     * tunnels can always provide a rewrite.
-     */
-    ASSERT(NULL != rewrite);
-
     adj->sub_type.midchain.fixup_func = fixup;
     adj->ia_flags |= flags;
 
@@ -447,6 +434,38 @@ adj_nbr_midchain_update_rewrite (adj_index_t adj_index,
     dpo_stack_from_node(tx_node,
 			&adj->sub_type.midchain.next_dpo,
 			drop_dpo_get(vnet_link_to_dpo_proto(adj->ia_link)));
+}
+
+/**
+ * adj_nbr_midchain_update_rewrite
+ *
+ * Update the adjacency's rewrite string. A NULL string implies the
+ * rewrite is reset (i.e. when ARP/ND etnry is gone).
+ * NB: the adj being updated may be handling traffic in the DP.
+ */
+void
+adj_nbr_midchain_update_rewrite (adj_index_t adj_index,
+				 adj_midchain_fixup_t fixup,
+				 adj_flags_t flags,
+				 u8 *rewrite)
+{
+    ip_adjacency_t *adj;
+
+    ASSERT(ADJ_INDEX_INVALID != adj_index);
+
+    adj = adj_get(adj_index);
+
+    /*
+     * one time only update. since we don't support chainging the tunnel
+     * src,dst, this is all we need.
+     */
+    ASSERT(adj->lookup_next_index == IP_LOOKUP_NEXT_ARP);
+    /*
+     * tunnels can always provide a rewrite.
+     */
+    ASSERT(NULL != rewrite);
+
+    adj_midchain_setup(adj_index, fixup, flags);
 
     /*
      * update the rewirte with the workers paused.
@@ -454,7 +473,7 @@ adj_nbr_midchain_update_rewrite (adj_index_t adj_index,
     adj_nbr_update_rewrite_internal(adj,
 				    IP_LOOKUP_NEXT_MIDCHAIN,
 				    adj_get_midchain_node(adj->ia_link),
-				    tx_node,
+				    adj_nbr_midchain_get_tx_node(adj),
 				    rewrite);
 }
 
@@ -496,7 +515,8 @@ adj_nbr_midchain_stack (adj_index_t adj_index,
 
     adj = adj_get(adj_index);
 
-    ASSERT(IP_LOOKUP_NEXT_MIDCHAIN == adj->lookup_next_index);
+    ASSERT((IP_LOOKUP_NEXT_MIDCHAIN == adj->lookup_next_index) ||
+           (IP_LOOKUP_NEXT_MCAST_MIDCHAIN == adj->lookup_next_index));
 
     dpo_stack_from_node(adj_nbr_midchain_get_tx_node(adj),
 			&adj->sub_type.midchain.next_dpo,
diff --git a/src/vnet/adj/adj_nbr.c b/src/vnet/adj/adj_nbr.c
index ddacb030f1d..3d450d1fba3 100644
--- a/src/vnet/adj/adj_nbr.c
+++ b/src/vnet/adj/adj_nbr.c
@@ -195,8 +195,6 @@ adj_nbr_alloc (fib_protocol_t nh_proto,
     adj->ia_link = link_type;
     adj->ia_nh_proto = nh_proto;
     adj->rewrite_header.sw_if_index = sw_if_index;
-    memset(&adj->sub_type.midchain.next_dpo, 0,
-           sizeof(adj->sub_type.midchain.next_dpo));
 
     adj_nbr_evaluate_feature (adj_get_index(adj));
     return (adj);
diff --git a/src/vnet/buffer.h b/src/vnet/buffer.h
index ea3ce0938de..ed869d1f768 100644
--- a/src/vnet/buffer.h
+++ b/src/vnet/buffer.h
@@ -130,6 +130,9 @@ typedef struct
 
 	  /* Rewrite length */
 	  u32 save_rewrite_length;
+
+	  /* MFIB RPF ID */
+	  u32 rpf_id;
 	};
 
 	/* ICMP */
diff --git a/src/vnet/devices/ssvm/node.c b/src/vnet/devices/ssvm/node.c
index 539b4161d7a..b7a8db0528c 100644
--- a/src/vnet/devices/ssvm/node.c
+++ b/src/vnet/devices/ssvm/node.c
@@ -210,7 +210,7 @@ ssvm_eth_device_input (ssvm_eth_main_t * em,
 	    next0 = SSVM_ETH_INPUT_NEXT_IP4_INPUT;
 	  else if (type0 == ETHERNET_TYPE_IP6)
 	    next0 = SSVM_ETH_INPUT_NEXT_IP6_INPUT;
-	  else if (type0 == ETHERNET_TYPE_MPLS_UNICAST)
+	  else if (type0 == ETHERNET_TYPE_MPLS)
 	    next0 = SSVM_ETH_INPUT_NEXT_MPLS_INPUT;
 
 	  l3_offset0 = ((next0 == SSVM_ETH_INPUT_NEXT_IP4_INPUT ||
diff --git a/src/vnet/dhcp/dhcp6_proxy_node.c b/src/vnet/dhcp/dhcp6_proxy_node.c
index 524cb095357..de73154dddb 100644
--- a/src/vnet/dhcp/dhcp6_proxy_node.c
+++ b/src/vnet/dhcp/dhcp6_proxy_node.c
@@ -883,6 +883,7 @@ dhcp6_proxy_set_server (ip46_address_t *addr,
          mfib_table_entry_update(rx_fib_index,
                                  &all_dhcp_servers,
                                  MFIB_SOURCE_DHCP,
+                                 MFIB_RPF_ID_NONE,
                                  MFIB_ENTRY_FLAG_ACCEPT_ALL_ITF);
          mfib_table_lock(rx_fib_index, FIB_PROTOCOL_IP6);
      }
diff --git a/src/vnet/dpo/dpo.c b/src/vnet/dpo/dpo.c
index d8e075a7f2f..dfc2bd923ce 100644
--- a/src/vnet/dpo/dpo.c
+++ b/src/vnet/dpo/dpo.c
@@ -37,6 +37,8 @@
 #include <vnet/dpo/classify_dpo.h>
 #include <vnet/dpo/ip_null_dpo.h>
 #include <vnet/dpo/replicate_dpo.h>
+#include <vnet/dpo/interface_dpo.h>
+#include <vnet/dpo/mpls_disposition.h>
 
 /**
  * Array of char* names for the DPO types and protos
@@ -182,6 +184,12 @@ dpo_set (dpo_id_t *dpo,
 	case IP_LOOKUP_NEXT_MIDCHAIN:
 	    dpo->dpoi_type = DPO_ADJACENCY_MIDCHAIN;
 	    break;
+	case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
+	    dpo->dpoi_type = DPO_ADJACENCY_MCAST_MIDCHAIN;
+	    break;
+	case IP_LOOKUP_NEXT_MCAST:
+	    dpo->dpoi_type = DPO_ADJACENCY_MCAST;
+	    break;
 	default:
 	    break;
 	}
@@ -453,6 +461,8 @@ dpo_module_init (vlib_main_t * vm)
     lookup_dpo_module_init();
     ip_null_dpo_module_init();
     replicate_module_init();
+    interface_dpo_module_init();
+    mpls_disp_dpo_module_init();
 
     return (NULL);
 }
diff --git a/src/vnet/dpo/dpo.h b/src/vnet/dpo/dpo.h
index 48b92d3d3d6..5aa4e2d2165 100644
--- a/src/vnet/dpo/dpo.h
+++ b/src/vnet/dpo/dpo.h
@@ -108,12 +108,15 @@ typedef enum dpo_type_t_ {
     DPO_ADJACENCY_MIDCHAIN,
     DPO_ADJACENCY_GLEAN,
     DPO_ADJACENCY_MCAST,
+    DPO_ADJACENCY_MCAST_MIDCHAIN,
     DPO_RECEIVE,
     DPO_LOOKUP,
     DPO_LISP_CP,
     DPO_CLASSIFY,
     DPO_MPLS_LABEL,
+    DPO_MPLS_DISPOSITION,
     DPO_MFIB_ENTRY,
+    DPO_INTERFACE,
     DPO_LAST,
 } __attribute__((packed)) dpo_type_t;
 
@@ -129,6 +132,7 @@ typedef enum dpo_type_t_ {
     [DPO_ADJACENCY_MIDCHAIN] = "dpo-adjacency-midcahin",	\
     [DPO_ADJACENCY_GLEAN] = "dpo-glean",	\
     [DPO_ADJACENCY_MCAST] = "dpo-adj-mcast",	\
+    [DPO_ADJACENCY_MCAST_MIDCHAIN] = "dpo-adj-mcast-midchain",	\
     [DPO_RECEIVE] = "dpo-receive",	\
     [DPO_LOOKUP] = "dpo-lookup",	\
     [DPO_LOAD_BALANCE] = "dpo-load-balance",	\
@@ -136,7 +140,9 @@ typedef enum dpo_type_t_ {
     [DPO_LISP_CP] = "dpo-lisp-cp",	\
     [DPO_CLASSIFY] = "dpo-classify",	\
     [DPO_MPLS_LABEL] = "dpo-mpls-label", \
-    [DPO_MFIB_ENTRY] = "dpo-mfib_entry"	\
+    [DPO_MPLS_DISPOSITION] = "dpo-mpls-diposition", \
+    [DPO_MFIB_ENTRY] = "dpo-mfib_entry", \
+    [DPO_INTERFACE] = "dpo-interface"	\
 }
 
 /**
diff --git a/src/vnet/dpo/interface_dpo.c b/src/vnet/dpo/interface_dpo.c
new file mode 100644
index 00000000000..50ca756f9da
--- /dev/null
+++ b/src/vnet/dpo/interface_dpo.c
@@ -0,0 +1,416 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/dpo/interface_dpo.h>
+#include <vnet/fib/fib_node.h>
+
+/*
+ * The 'DB' of interface DPOs.
+ * There is only one  per-interface per-protocol, so this is a per-interface
+ * vector
+ */
+static index_t *interface_dpo_db[DPO_PROTO_NUM];
+
+static interface_dpo_t *
+interface_dpo_alloc (void)
+{
+    interface_dpo_t *ido;
+
+    pool_get(interface_dpo_pool, ido);
+
+    return (ido);
+}
+
+static inline interface_dpo_t *
+interface_dpo_get_from_dpo (const dpo_id_t *dpo)
+{
+    ASSERT(DPO_INTERFACE == dpo->dpoi_type);
+
+    return (interface_dpo_get(dpo->dpoi_index));
+}
+
+static inline index_t
+interface_dpo_get_index (interface_dpo_t *ido)
+{
+    return (ido - interface_dpo_pool);
+}
+
+static void
+interface_dpo_lock (dpo_id_t *dpo)
+{
+    interface_dpo_t *ido;
+
+    ido = interface_dpo_get_from_dpo(dpo);
+    ido->ido_locks++;
+}
+
+static void
+interface_dpo_unlock (dpo_id_t *dpo)
+{
+    interface_dpo_t *ido;
+
+    ido = interface_dpo_get_from_dpo(dpo);
+    ido->ido_locks--;
+
+    if (0 == ido->ido_locks)
+    {
+	interface_dpo_db[ido->ido_proto][ido->ido_sw_if_index] =
+            INDEX_INVALID;
+        pool_put(interface_dpo_pool, ido);
+    }
+}
+
+/*
+ * interface_dpo_add_or_lock
+ *
+ * Add/create and lock a new or lock an existing for the interface DPO
+ * on the interface and protocol given
+ */
+void
+interface_dpo_add_or_lock (dpo_proto_t proto,
+                           u32 sw_if_index,
+                           dpo_id_t *dpo)
+{
+    interface_dpo_t *ido;
+
+    vec_validate_init_empty(interface_dpo_db[proto],
+                            sw_if_index,
+                            INDEX_INVALID);
+
+    if (INDEX_INVALID == interface_dpo_db[proto][sw_if_index])
+    {
+	ido = interface_dpo_alloc();
+
+        ido->ido_sw_if_index = sw_if_index;
+        ido->ido_proto = proto;
+
+	interface_dpo_db[proto][sw_if_index] =
+            interface_dpo_get_index(ido);
+    }
+    else
+    {
+	ido = interface_dpo_get(interface_dpo_db[proto][sw_if_index]);
+    }
+
+    dpo_set(dpo, DPO_INTERFACE, proto, interface_dpo_get_index(ido));
+}
+
+
+static clib_error_t *
+interface_dpo_interface_state_change (vnet_main_t * vnm,
+                                      u32 sw_if_index,
+                                      u32 flags)
+{
+    /*
+     */
+    return (NULL);
+}
+
+VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION(
+    interface_dpo_interface_state_change);
+
+/**
+ * @brief Registered callback for HW interface state changes
+ */
+static clib_error_t *
+interface_dpo_hw_interface_state_change (vnet_main_t * vnm,
+                                         u32 hw_if_index,
+                                         u32 flags)
+{
+    return (NULL);
+}
+
+VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION(
+    interface_dpo_hw_interface_state_change);
+
+static clib_error_t *
+interface_dpo_interface_delete (vnet_main_t * vnm,
+                                u32 sw_if_index,
+                                u32 is_add)
+{
+    return (NULL);
+}
+
+VNET_SW_INTERFACE_ADD_DEL_FUNCTION(
+    interface_dpo_interface_delete);
+
+u8*
+format_interface_dpo (u8* s, va_list *ap)
+{
+    index_t index = va_arg(*ap, index_t);
+    CLIB_UNUSED(u32 indent) = va_arg(*ap, u32);
+    vnet_main_t * vnm = vnet_get_main();
+    interface_dpo_t *ido = interface_dpo_get(index);
+
+    return (format(s, "%U-dpo: %U",
+                   format_vnet_sw_interface_name,
+                   vnm,
+                   vnet_get_sw_interface(vnm, ido->ido_sw_if_index),
+                   format_dpo_proto, ido->ido_proto));
+}
+
+static void
+interface_dpo_mem_show (void)
+{
+    fib_show_memory_usage("Interface",
+			  pool_elts(interface_dpo_pool),
+			  pool_len(interface_dpo_pool),
+			  sizeof(interface_dpo_t));
+}
+
+
+const static dpo_vft_t interface_dpo_vft = {
+    .dv_lock = interface_dpo_lock,
+    .dv_unlock = interface_dpo_unlock,
+    .dv_format = format_interface_dpo,
+    .dv_mem_show = interface_dpo_mem_show,
+};
+
+/**
+ * @brief The per-protocol VLIB graph nodes that are assigned to a glean
+ *        object.
+ *
+ * this means that these graph nodes are ones from which a glean is the
+ * parent object in the DPO-graph.
+ */
+const static char* const interface_dpo_ip4_nodes[] =
+{
+    "interface-dpo-ip4",
+    NULL,
+};
+const static char* const interface_dpo_ip6_nodes[] =
+{
+    "interface-dpo-ip4",
+    NULL,
+};
+
+const static char* const * const interface_dpo_nodes[DPO_PROTO_NUM] =
+{
+    [DPO_PROTO_IP4]  = interface_dpo_ip4_nodes,
+    [DPO_PROTO_IP6]  = interface_dpo_ip6_nodes,
+    [DPO_PROTO_MPLS] = NULL,
+};
+
+void
+interface_dpo_module_init (void)
+{
+    dpo_register(DPO_INTERFACE,
+                 &interface_dpo_vft,
+                 interface_dpo_nodes);
+}
+
+/**
+ * @brief Interface DPO trace data
+ */
+typedef struct interface_dpo_trace_t_
+{
+    u32 sw_if_index;
+} interface_dpo_trace_t;
+
+typedef enum interface_dpo_next_t_
+{
+    INTERFACE_DPO_DROP = 0,
+    INTERFACE_DPO_INPUT = 1,
+} interface_dpo_next_t;
+
+always_inline uword
+interface_dpo_inline (vlib_main_t * vm,
+                      vlib_node_runtime_t * node,
+                      vlib_frame_t * from_frame)
+{
+    u32 n_left_from, next_index, * from, * to_next;
+    u32 cpu_index = os_get_cpu_number();
+    vnet_interface_main_t *im;
+
+    im = &vnet_get_main ()->interface_main;
+    from = vlib_frame_vector_args (from_frame);
+    n_left_from = from_frame->n_vectors;
+
+    next_index = node->cached_next_index;
+
+    while (n_left_from > 0)
+    {
+        u32 n_left_to_next;
+
+        vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
+
+	while (n_left_from >= 4 && n_left_to_next > 2)
+	{
+	    const interface_dpo_t *ido0, *ido1;
+	    u32 bi0, idoi0, bi1, idoi1;
+	    vlib_buffer_t *b0, *b1;
+
+	    bi0 = from[0];
+	    to_next[0] = bi0;
+	    bi1 = from[1];
+	    to_next[1] = bi1;
+	    from += 2;
+	    to_next += 2;
+	    n_left_from -= 2;
+	    n_left_to_next -= 2;
+
+	    b0 = vlib_get_buffer (vm, bi0);
+	    b1 = vlib_get_buffer (vm, bi1);
+
+	    idoi0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX];
+	    idoi1 = vnet_buffer(b1)->ip.adj_index[VLIB_TX];
+	    ido0 = interface_dpo_get(idoi0);
+	    ido1 = interface_dpo_get(idoi1);
+
+	    vnet_buffer(b0)->sw_if_index[VLIB_RX] = ido0->ido_sw_if_index;
+	    vnet_buffer(b1)->sw_if_index[VLIB_RX] = ido1->ido_sw_if_index;
+
+            vlib_increment_combined_counter (im->combined_sw_if_counters
+                                             + VNET_INTERFACE_COUNTER_RX,
+                                             cpu_index,
+                                             ido0->ido_sw_if_index,
+                                             1,
+                                             vlib_buffer_length_in_chain (vm, b0));
+            vlib_increment_combined_counter (im->combined_sw_if_counters
+                                             + VNET_INTERFACE_COUNTER_RX,
+                                             cpu_index,
+                                             ido1->ido_sw_if_index,
+                                             1,
+                                             vlib_buffer_length_in_chain (vm, b1));
+
+	    if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+	    {
+		interface_dpo_trace_t *tr0;
+
+                tr0 = vlib_add_trace (vm, node, b0, sizeof (*tr0));
+		tr0->sw_if_index = ido0->ido_sw_if_index;
+	    }
+	    if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED))
+	    {
+		interface_dpo_trace_t *tr1;
+
+                tr1 = vlib_add_trace (vm, node, b1, sizeof (*tr1));
+		tr1->sw_if_index = ido1->ido_sw_if_index;
+	    }
+
+	    vlib_validate_buffer_enqueue_x2(vm, node, next_index, to_next,
+					    n_left_to_next, bi0, bi1,
+                                            INTERFACE_DPO_INPUT,
+                                            INTERFACE_DPO_INPUT);
+	}
+
+	while (n_left_from > 0 && n_left_to_next > 0)
+	{
+	    const interface_dpo_t * ido0;
+	    vlib_buffer_t * b0;
+	    u32 bi0, idoi0;
+
+	    bi0 = from[0];
+	    to_next[0] = bi0;
+	    from += 1;
+	    to_next += 1;
+	    n_left_from -= 1;
+	    n_left_to_next -= 1;
+
+	    b0 = vlib_get_buffer (vm, bi0);
+
+	    idoi0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX];
+	    ido0 = interface_dpo_get(idoi0);
+
+            /* Swap the RX interface of the packet to the one the
+             * interface DPR represents */
+	    vnet_buffer(b0)->sw_if_index[VLIB_RX] = ido0->ido_sw_if_index;
+
+            /* Bump the interface's RX coutners */
+            vlib_increment_combined_counter (im->combined_sw_if_counters
+                                             + VNET_INTERFACE_COUNTER_RX,
+                                             cpu_index,
+                                             ido0->ido_sw_if_index,
+                                             1,
+                                             vlib_buffer_length_in_chain (vm, b0));
+
+	    if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+	    {
+		interface_dpo_trace_t *tr;
+
+                tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
+		tr->sw_if_index = ido0->ido_sw_if_index;
+	    }
+
+	    vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next,
+					    n_left_to_next, bi0,
+                                            INTERFACE_DPO_INPUT);
+	}
+        vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+    }
+    return from_frame->n_vectors;
+}
+
+static u8 *
+format_interface_dpo_trace (u8 * s, va_list * args)
+{
+    CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+    CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+    interface_dpo_trace_t * t = va_arg (*args, interface_dpo_trace_t *);
+    uword indent = format_get_indent (s);
+    s = format (s, "%U sw_if_index:%d",
+                format_white_space, indent,
+                t->sw_if_index);
+    return s;
+}
+
+static uword
+interface_dpo_ip4 (vlib_main_t * vm,
+                   vlib_node_runtime_t * node,
+                   vlib_frame_t * from_frame)
+{
+    return (interface_dpo_inline(vm, node, from_frame));
+}
+
+static uword
+interface_dpo_ip6 (vlib_main_t * vm,
+                   vlib_node_runtime_t * node,
+                   vlib_frame_t * from_frame)
+{
+    return (interface_dpo_inline(vm, node, from_frame));
+}
+
+VLIB_REGISTER_NODE (interface_dpo_ip4_node) = {
+    .function = interface_dpo_ip4,
+    .name = "interface-dpo-ip4",
+    .vector_size = sizeof (u32),
+    .format_trace = format_interface_dpo_trace,
+
+    .n_next_nodes = 2,
+    .next_nodes = {
+        [INTERFACE_DPO_DROP] = "ip4-drop",
+        [INTERFACE_DPO_INPUT] = "ip4-input",
+    },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (interface_dpo_ip4_node,
+                              interface_dpo_ip4)
+
+VLIB_REGISTER_NODE (interface_dpo_ip6_node) = {
+    .function = interface_dpo_ip6,
+    .name = "interface-dpo-ip6",
+    .vector_size = sizeof (u32),
+    .format_trace = format_interface_dpo_trace,
+
+    .n_next_nodes = 2,
+    .next_nodes = {
+        [INTERFACE_DPO_DROP] = "ip6-drop",
+        [INTERFACE_DPO_INPUT] = "ip6-input",
+    },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (interface_dpo_ip6_node,
+                              interface_dpo_ip6)
+
diff --git a/src/vnet/dpo/interface_dpo.h b/src/vnet/dpo/interface_dpo.h
new file mode 100644
index 00000000000..1538dfbbf06
--- /dev/null
+++ b/src/vnet/dpo/interface_dpo.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @brief
+ * The data-path object representing interfaceing the packet, i.e. it's for-us
+ */
+
+#ifndef __INTERFACE_DPO_H__
+#define __INTERFACE_DPO_H__
+
+#include <vnet/dpo/dpo.h>
+
+typedef struct interface_dpo_t_
+{
+    /**
+     * The Software interface index that the packets will be given
+     * as the ingress/rx interface
+     */
+    u32 ido_sw_if_index;
+
+    /**
+     * next VLIB node. A '<proto>-input' node.
+     */
+    u32 ido_next_node;
+
+    /**
+     * DPO protocol that the packets will have as they 'ingress'
+     * on this interface
+     */
+    dpo_proto_t ido_proto;
+
+    /**
+     * number of locks.
+     */
+    u16 ido_locks;
+} interface_dpo_t;
+
+extern void interface_dpo_add_or_lock (dpo_proto_t proto,
+                                       u32 sw_if_index,
+                                       dpo_id_t *dpo);
+
+extern void interface_dpo_module_init(void);
+
+/**
+ * @brief pool of all interface DPOs
+ */
+interface_dpo_t *interface_dpo_pool;
+
+static inline interface_dpo_t *
+interface_dpo_get (index_t index)
+{
+    return (pool_elt_at_index(interface_dpo_pool, index));
+}
+
+#endif
diff --git a/src/vnet/dpo/lookup_dpo.c b/src/vnet/dpo/lookup_dpo.c
index 97ad0a44cce..e5b00a79e52 100644
--- a/src/vnet/dpo/lookup_dpo.c
+++ b/src/vnet/dpo/lookup_dpo.c
@@ -21,8 +21,12 @@
 #include <vnet/fib/ip4_fib.h>
 #include <vnet/fib/ip6_fib.h>
 #include <vnet/fib/mpls_fib.h>
+#include <vnet/mfib/mfib_table.h>
+#include <vnet/mfib/ip4_mfib.h>
+#include <vnet/mfib/ip6_mfib.h>
 
 static const char *const lookup_input_names[] = LOOKUP_INPUTS;
+static const char *const lookup_cast_names[] = LOOKUP_CASTS;
 
 /**
  * @brief Enumeration of the lookup subtypes
@@ -31,6 +35,7 @@ typedef enum lookup_sub_type_t_
 {
     LOOKUP_SUB_TYPE_SRC,
     LOOKUP_SUB_TYPE_DST,
+    LOOKUP_SUB_TYPE_DST_MCAST,
     LOOKUP_SUB_TYPE_DST_TABLE_FROM_INTERFACE,
 } lookup_sub_type_t;
 #define LOOKUP_SUB_TYPE_NUM (LOOKUP_SUB_TYPE_DST_TABLE_FROM_INTERFACE+1)
@@ -67,6 +72,7 @@ lookup_dpo_get_index (lookup_dpo_t *lkd)
 static void
 lookup_dpo_add_or_lock_i (fib_node_index_t fib_index,
                           dpo_proto_t proto,
+                          lookup_cast_t cast,
                           lookup_input_t input,
                           lookup_table_t table_config,
                           dpo_id_t *dpo)
@@ -79,6 +85,7 @@ lookup_dpo_add_or_lock_i (fib_node_index_t fib_index,
     lkd->lkd_proto = proto;
     lkd->lkd_input = input;
     lkd->lkd_table = table_config;
+    lkd->lkd_cast  = cast;
 
     /*
      * use the input type to select the lookup sub-type
@@ -100,6 +107,10 @@ lookup_dpo_add_or_lock_i (fib_node_index_t fib_index,
             type = lookup_dpo_sub_types[LOOKUP_SUB_TYPE_DST];
             break;
         }
+        if (LOOKUP_MULTICAST == cast)
+        {
+            type = lookup_dpo_sub_types[LOOKUP_SUB_TYPE_DST_MCAST];
+        }
     }
 
     if (0 == type)
@@ -115,20 +126,29 @@ lookup_dpo_add_or_lock_i (fib_node_index_t fib_index,
 void
 lookup_dpo_add_or_lock_w_fib_index (fib_node_index_t fib_index,
                                     dpo_proto_t proto,
+                                    lookup_cast_t cast,
                                     lookup_input_t input,
                                     lookup_table_t table_config,
                                     dpo_id_t *dpo)
 {
     if (LOOKUP_TABLE_FROM_CONFIG == table_config)
     {
-	fib_table_lock(fib_index, dpo_proto_to_fib(proto));
+        if (LOOKUP_UNICAST == cast)
+        {
+            fib_table_lock(fib_index, dpo_proto_to_fib(proto));
+        }
+        else
+        {
+            mfib_table_lock(fib_index, dpo_proto_to_fib(proto));
+        }
     }
-    lookup_dpo_add_or_lock_i(fib_index, proto, input, table_config, dpo);
+    lookup_dpo_add_or_lock_i(fib_index, proto, cast, input, table_config, dpo);
 }
 
 void
 lookup_dpo_add_or_lock_w_table_id (u32 table_id,
                                    dpo_proto_t proto,
+                                   lookup_cast_t cast,
                                    lookup_input_t input,
                                    lookup_table_t table_config,
                                    dpo_id_t *dpo)
@@ -137,13 +157,22 @@ lookup_dpo_add_or_lock_w_table_id (u32 table_id,
 
     if (LOOKUP_TABLE_FROM_CONFIG == table_config)
     {
-	fib_index =
-	    fib_table_find_or_create_and_lock(dpo_proto_to_fib(proto),
-					      table_id);
+        if (LOOKUP_UNICAST == cast)
+        {
+            fib_index =
+                fib_table_find_or_create_and_lock(dpo_proto_to_fib(proto),
+                                                  table_id);
+        }
+        else
+        {
+            fib_index =
+                mfib_table_find_or_create_and_lock(dpo_proto_to_fib(proto),
+                                                   table_id);
+        }
     }
 
     ASSERT(FIB_NODE_INDEX_INVALID != fib_index);
-    lookup_dpo_add_or_lock_i(fib_index, proto, input, table_config, dpo);    
+    lookup_dpo_add_or_lock_i(fib_index, proto, cast, input, table_config, dpo);
 }
 
 u8*
@@ -156,16 +185,29 @@ format_lookup_dpo (u8 *s, va_list *args)
 
     if (LOOKUP_TABLE_FROM_INPUT_INTERFACE == lkd->lkd_table)
     {
-        s = format(s, "%s lookup in interface's %U table",
+        s = format(s, "%s,%s lookup in interface's %U table",
                    lookup_input_names[lkd->lkd_input],
+                   lookup_cast_names[lkd->lkd_cast],
                    format_dpo_proto, lkd->lkd_proto);
     }
     else
     {
-	s = format(s, "%s lookup in %U",
-		   lookup_input_names[lkd->lkd_input],
-		   format_fib_table_name, lkd->lkd_fib_index,
-		   dpo_proto_to_fib(lkd->lkd_proto));
+        if (LOOKUP_UNICAST == lkd->lkd_cast)
+        {
+            s = format(s, "%s,%s lookup in %U",
+                       lookup_input_names[lkd->lkd_input],
+                       lookup_cast_names[lkd->lkd_cast],
+                       format_fib_table_name, lkd->lkd_fib_index,
+                       dpo_proto_to_fib(lkd->lkd_proto));
+        }
+        else
+        {
+            s = format(s, "%s,%s lookup in %U",
+                       lookup_input_names[lkd->lkd_input],
+                       lookup_cast_names[lkd->lkd_cast],
+                       format_mfib_table_name, lkd->lkd_fib_index,
+                       dpo_proto_to_fib(lkd->lkd_proto));
+        }
     }
     return (s);
 }
@@ -193,8 +235,16 @@ lookup_dpo_unlock (dpo_id_t *dpo)
     {
         if (LOOKUP_TABLE_FROM_CONFIG == lkd->lkd_table)
         {
-	    fib_table_unlock(lkd->lkd_fib_index,
-			     dpo_proto_to_fib(lkd->lkd_proto));
+            if (LOOKUP_UNICAST == lkd->lkd_cast)
+            {
+                fib_table_unlock(lkd->lkd_fib_index,
+                                 dpo_proto_to_fib(lkd->lkd_proto));
+            }
+            else
+            {
+                mfib_table_unlock(lkd->lkd_fib_index,
+                                  dpo_proto_to_fib(lkd->lkd_proto));
+            }
         }
         pool_put(lookup_dpo_pool, lkd);
     }
@@ -1069,6 +1119,123 @@ VLIB_REGISTER_NODE (lookup_mpls_dst_itf_node) = {
 };
 VLIB_NODE_FUNCTION_MULTIARCH (lookup_mpls_dst_itf_node, lookup_mpls_dst_itf)
 
+typedef enum lookup_ip_dst_mcast_next_t_ {
+    LOOKUP_IP_DST_MCAST_NEXT_RPF,
+    LOOKUP_IP_DST_MCAST_N_NEXT,
+} mfib_forward_lookup_next_t;
+
+always_inline uword
+lookup_dpo_ip_dst_mcast_inline (vlib_main_t * vm,
+                                vlib_node_runtime_t * node,
+                                vlib_frame_t * from_frame,
+                                int is_v4)
+{
+    u32 n_left_from, next_index, * from, * to_next;
+
+    from = vlib_frame_vector_args (from_frame);
+    n_left_from = from_frame->n_vectors;
+
+    next_index = LOOKUP_IP_DST_MCAST_NEXT_RPF;
+
+    while (n_left_from > 0)
+    {
+        u32 n_left_to_next;
+
+        vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
+
+        /* while (n_left_from >= 4 && n_left_to_next >= 2) */
+        /*   } */
+
+        while (n_left_from > 0 && n_left_to_next > 0)
+        {
+            u32 bi0, lkdi0, fib_index0,  next0;
+            const lookup_dpo_t * lkd0;
+            fib_node_index_t mfei0;
+            vlib_buffer_t * b0;
+
+            bi0 = from[0];
+            to_next[0] = bi0;
+            from += 1;
+            to_next += 1;
+            n_left_from -= 1;
+            n_left_to_next -= 1;
+
+            b0 = vlib_get_buffer (vm, bi0);
+
+            /* dst lookup was done by mpls lookup */
+            lkdi0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX];
+            lkd0 = lookup_dpo_get(lkdi0);
+            fib_index0 = lkd0->lkd_fib_index;
+            next0 = LOOKUP_IP_DST_MCAST_NEXT_RPF;
+
+            if (is_v4)
+            {
+                ip4_header_t * ip0;
+
+                ip0 = vlib_buffer_get_current (b0);
+                mfei0 = ip4_mfib_table_lookup(ip4_mfib_get(fib_index0),
+                                              &ip0->src_address,
+                                              &ip0->dst_address,
+                                              64);
+                if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+                {
+                    lookup_trace_t *tr = vlib_add_trace (vm, node,
+                                                         b0, sizeof (*tr));
+                    tr->fib_index = fib_index0;
+                    tr->lbi = mfei0;
+                    tr->addr.ip4 = ip0->dst_address;
+                }
+            }
+            else
+            {
+                ip6_header_t * ip0;
+
+                ip0 = vlib_buffer_get_current (b0);
+                mfei0 = ip6_mfib_table_lookup2(ip6_mfib_get(fib_index0),
+                                               &ip0->src_address,
+                                               &ip0->dst_address);
+                if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+                {
+                    lookup_trace_t *tr = vlib_add_trace (vm, node,
+                                                         b0, sizeof (*tr));
+                    tr->fib_index = fib_index0;
+                    tr->lbi = mfei0;
+                    tr->addr.ip6 = ip0->dst_address;
+                }
+            }
+
+            vnet_buffer (b0)->ip.adj_index[VLIB_TX] = mfei0;
+
+           vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next,
+                                            n_left_to_next, bi0, next0);
+        }
+        vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+    }
+    return from_frame->n_vectors;
+}
+
+always_inline uword
+lookup_ip4_dst_mcast (vlib_main_t * vm,
+                      vlib_node_runtime_t * node,
+                      vlib_frame_t * from_frame)
+{
+    return (lookup_dpo_ip_dst_mcast_inline(vm, node, from_frame, 1));
+}
+
+VLIB_REGISTER_NODE (lookup_ip4_dst_mcast_node) = {
+    .function = lookup_ip4_dst_mcast,
+    .name = "lookup-ip4-dst-mcast",
+    .vector_size = sizeof (u32),
+
+    .format_trace = format_lookup_trace,
+    .n_next_nodes = LOOKUP_IP_DST_MCAST_N_NEXT,
+    .next_nodes = {
+        [LOOKUP_IP_DST_MCAST_NEXT_RPF] = "ip4-mfib-forward-rpf",
+    },
+};
+VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip4_dst_mcast_node,
+                              lookup_ip4_dst_mcast)
+
 static void
 lookup_dpo_mem_show (void)
 {
@@ -1129,6 +1296,22 @@ const static char* const * const lookup_dst_nodes[DPO_PROTO_NUM] =
     [DPO_PROTO_MPLS] = lookup_dst_mpls_nodes,
 };
 
+const static char* const lookup_dst_mcast_ip4_nodes[] =
+{
+    "lookup-ip4-dst-mcast",
+    NULL,
+};
+const static char* const lookup_dst_mcast_ip6_nodes[] =
+{
+    "lookup-ip6-dst-mcast",
+    NULL,
+};
+const static char* const * const lookup_dst_mcast_nodes[DPO_PROTO_NUM] =
+{
+    [DPO_PROTO_IP4]  = lookup_dst_mcast_ip4_nodes,
+    [DPO_PROTO_IP6]  = lookup_dst_mcast_ip6_nodes,
+};
+
 const static char* const lookup_dst_from_interface_ip4_nodes[] =
 {
     "lookup-ip4-dst-itf",
@@ -1168,6 +1351,8 @@ lookup_dpo_module_init (void)
         dpo_register_new_type(&lkd_vft, lookup_src_nodes);
     lookup_dpo_sub_types[LOOKUP_SUB_TYPE_DST] =
         dpo_register_new_type(&lkd_vft, lookup_dst_nodes);
+    lookup_dpo_sub_types[LOOKUP_SUB_TYPE_DST_MCAST] =
+        dpo_register_new_type(&lkd_vft, lookup_dst_mcast_nodes);
     lookup_dpo_sub_types[LOOKUP_SUB_TYPE_DST_TABLE_FROM_INTERFACE] =
         dpo_register_new_type(&lkd_vft, lookup_dst_from_interface_nodes);
 }
diff --git a/src/vnet/dpo/lookup_dpo.h b/src/vnet/dpo/lookup_dpo.h
index ff283388868..7dfd0385a9d 100644
--- a/src/vnet/dpo/lookup_dpo.h
+++ b/src/vnet/dpo/lookup_dpo.h
@@ -47,6 +47,19 @@ typedef enum lookup_table_t_ {
 }
 
 /**
+ * Switch to use the packet's source or destination address for lookup
+ */
+typedef enum lookup_cast_t_ {
+    LOOKUP_UNICAST,
+    LOOKUP_MULTICAST,
+} __attribute__ ((packed)) lookup_cast_t;
+
+#define LOOKUP_CASTS {                 \
+    [LOOKUP_UNICAST]   = "unicast",    \
+    [LOOKUP_MULTICAST] = "multicast",  \
+}
+
+/**
  * A representation of an MPLS label for imposition in the data-path
  */
 typedef struct lookup_dpo_t
@@ -74,6 +87,11 @@ typedef struct lookup_dpo_t
     lookup_table_t lkd_table;
 
     /**
+     * Unicast of rmulticast FIB lookup
+     */
+    lookup_cast_t lkd_cast;
+
+    /**
      * Number of locks
      */
     u16 lkd_locks;
@@ -81,11 +99,13 @@ typedef struct lookup_dpo_t
 
 extern void lookup_dpo_add_or_lock_w_fib_index(fib_node_index_t fib_index,
                                                dpo_proto_t proto,
+                                               lookup_cast_t cast,
                                                lookup_input_t input,
                                                lookup_table_t table,
                                                dpo_id_t *dpo);
 extern void lookup_dpo_add_or_lock_w_table_id(u32 table_id,
                                               dpo_proto_t proto,
+                                              lookup_cast_t cast,
                                               lookup_input_t input,
                                               lookup_table_t table,
                                               dpo_id_t *dpo);
diff --git a/src/vnet/dpo/mpls_disposition.c b/src/vnet/dpo/mpls_disposition.c
new file mode 100644
index 00000000000..5dc33fcfdbd
--- /dev/null
+++ b/src/vnet/dpo/mpls_disposition.c
@@ -0,0 +1,364 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/ip/ip.h>
+#include <vnet/dpo/mpls_disposition.h>
+#include <vnet/mpls/mpls.h>
+
+/*
+ * pool of all MPLS Label DPOs
+ */
+mpls_disp_dpo_t *mpls_disp_dpo_pool;
+
+static mpls_disp_dpo_t *
+mpls_disp_dpo_alloc (void)
+{
+    mpls_disp_dpo_t *mdd;
+
+    pool_get_aligned(mpls_disp_dpo_pool, mdd, CLIB_CACHE_LINE_BYTES);
+    memset(mdd, 0, sizeof(*mdd));
+
+    dpo_reset(&mdd->mdd_dpo);
+
+    return (mdd);
+}
+
+static index_t
+mpls_disp_dpo_get_index (mpls_disp_dpo_t *mdd)
+{
+    return (mdd - mpls_disp_dpo_pool);
+}
+
+index_t
+mpls_disp_dpo_create (dpo_proto_t payload_proto,
+                      fib_rpf_id_t rpf_id,
+                      const dpo_id_t *dpo)
+{
+    mpls_disp_dpo_t *mdd;
+
+    mdd = mpls_disp_dpo_alloc();
+
+    mdd->mdd_payload_proto = payload_proto;
+    mdd->mdd_rpf_id = rpf_id;
+
+    dpo_stack(DPO_MPLS_DISPOSITION,
+              mdd->mdd_payload_proto,
+              &mdd->mdd_dpo,
+              dpo);
+
+    return (mpls_disp_dpo_get_index(mdd));
+}
+
+u8*
+format_mpls_disp_dpo (u8 *s, va_list *args)
+{
+    index_t index = va_arg (*args, index_t);
+    u32 indent = va_arg (*args, u32);
+    mpls_disp_dpo_t *mdd;
+
+    mdd = mpls_disp_dpo_get(index);
+
+    s = format(s, "mpls-disposition:[%d]:[%U]",
+               index,
+               format_dpo_proto, mdd->mdd_payload_proto);
+
+    s = format(s, "\n%U", format_white_space, indent);
+    s = format(s, "%U", format_dpo_id, &mdd->mdd_dpo, indent+2);
+
+    return (s);
+}
+
+static void
+mpls_disp_dpo_lock (dpo_id_t *dpo)
+{
+    mpls_disp_dpo_t *mdd;
+
+    mdd = mpls_disp_dpo_get(dpo->dpoi_index);
+
+    mdd->mdd_locks++;
+}
+
+static void
+mpls_disp_dpo_unlock (dpo_id_t *dpo)
+{
+    mpls_disp_dpo_t *mdd;
+
+    mdd = mpls_disp_dpo_get(dpo->dpoi_index);
+
+    mdd->mdd_locks--;
+
+    if (0 == mdd->mdd_locks)
+    {
+	dpo_reset(&mdd->mdd_dpo);
+	pool_put(mpls_disp_dpo_pool, mdd);
+    }
+}
+
+/**
+ * @brief A struct to hold tracing information for the MPLS label disposition
+ * node.
+ */
+typedef struct mpls_label_disposition_trace_t_
+{
+    index_t mdd;
+} mpls_label_disposition_trace_t;
+
+always_inline uword
+mpls_label_disposition_inline (vlib_main_t * vm,
+                              vlib_node_runtime_t * node,
+                              vlib_frame_t * from_frame,
+                              u8 payload_is_ip4,
+                              u8 payload_is_ip6)
+{
+    u32 n_left_from, next_index, * from, * to_next;
+
+    from = vlib_frame_vector_args (from_frame);
+    n_left_from = from_frame->n_vectors;
+
+    next_index = node->cached_next_index;
+
+    while (n_left_from > 0)
+    {
+        u32 n_left_to_next;
+
+        vlib_get_next_frame(vm, node, next_index, to_next, n_left_to_next);
+
+        while (n_left_from >= 4 && n_left_to_next >= 2)
+        {
+            mpls_disp_dpo_t *mdd0, *mdd1;
+            u32 bi0, mddi0, bi1, mddi1;
+            vlib_buffer_t * b0, *b1;
+            u32 next0, next1;
+
+            bi0 = to_next[0] = from[0];
+            bi1 = to_next[1] = from[1];
+
+            /* Prefetch next iteration. */
+            {
+                vlib_buffer_t * p2, * p3;
+
+                p2 = vlib_get_buffer (vm, from[2]);
+                p3 = vlib_get_buffer (vm, from[3]);
+
+                vlib_prefetch_buffer_header (p2, STORE);
+                vlib_prefetch_buffer_header (p3, STORE);
+
+                CLIB_PREFETCH (p2->data, sizeof (ip6_header_t), STORE);
+                CLIB_PREFETCH (p3->data, sizeof (ip6_header_t), STORE);
+            }
+
+            from += 2;
+            to_next += 2;
+            n_left_from -= 2;
+            n_left_to_next -= 2;
+
+            b0 = vlib_get_buffer (vm, bi0);
+            b1 = vlib_get_buffer (vm, bi1);
+
+            /* dst lookup was done by ip4 lookup */
+            mddi0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX];
+            mddi1 = vnet_buffer(b1)->ip.adj_index[VLIB_TX];
+            mdd0 = mpls_disp_dpo_get(mddi0);
+            mdd1 = mpls_disp_dpo_get(mddi1);
+
+            if (payload_is_ip4)
+            {
+                /*
+                 * decrement the TTL on ingress to the LSP
+                 */
+            }
+            else if (payload_is_ip6)
+            {
+                /*
+                 * decrement the TTL on ingress to the LSP
+                 */
+            }
+ 
+            next0 = mdd0->mdd_dpo.dpoi_next_node;
+            next1 = mdd1->mdd_dpo.dpoi_next_node;
+            vnet_buffer(b0)->ip.adj_index[VLIB_TX] = mdd0->mdd_dpo.dpoi_index;
+            vnet_buffer(b1)->ip.adj_index[VLIB_TX] = mdd1->mdd_dpo.dpoi_index;
+            vnet_buffer(b0)->ip.rpf_id = mdd0->mdd_rpf_id;
+            vnet_buffer(b1)->ip.rpf_id = mdd1->mdd_rpf_id;
+
+            if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+            {
+                mpls_label_disposition_trace_t *tr =
+                    vlib_add_trace (vm, node, b0, sizeof (*tr));
+
+                tr->mdd = mddi0;
+            }
+            if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED))
+            {
+                mpls_label_disposition_trace_t *tr =
+                    vlib_add_trace (vm, node, b1, sizeof (*tr));
+                tr->mdd = mddi1;
+            }
+
+            vlib_validate_buffer_enqueue_x2(vm, node, next_index, to_next,
+                                            n_left_to_next,
+                                            bi0, bi1, next0, next1);
+        }
+
+        while (n_left_from > 0 && n_left_to_next > 0)
+        {
+            mpls_disp_dpo_t *mdd0;
+            vlib_buffer_t * b0;
+            u32 bi0, mddi0;
+            u32 next0;
+
+            bi0 = from[0];
+            to_next[0] = bi0;
+            from += 1;
+            to_next += 1;
+            n_left_from -= 1;
+            n_left_to_next -= 1;
+
+            b0 = vlib_get_buffer (vm, bi0);
+
+            /* dst lookup was done by ip4 lookup */
+            mddi0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX];
+            mdd0 = mpls_disp_dpo_get(mddi0);
+
+            if (payload_is_ip4)
+            {
+                /*
+                 * decrement the TTL on ingress to the LSP
+                 */
+            }
+            else if (payload_is_ip6)
+            {
+                /*
+                 * decrement the TTL on ingress to the LSP
+                 */
+            }
+            else
+            {
+            }
+
+            next0 = mdd0->mdd_dpo.dpoi_next_node;
+            vnet_buffer(b0)->ip.adj_index[VLIB_TX] = mdd0->mdd_dpo.dpoi_index;
+            vnet_buffer(b0)->ip.rpf_id = mdd0->mdd_rpf_id;
+
+            if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+            {
+                mpls_label_disposition_trace_t *tr =
+                    vlib_add_trace (vm, node, b0, sizeof (*tr));
+                tr->mdd = mddi0;
+            }
+
+            vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next,
+                                            n_left_to_next, bi0, next0);
+        }
+        vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+    }
+    return from_frame->n_vectors;
+}
+
+static u8 *
+format_mpls_label_disposition_trace (u8 * s, va_list * args)
+{
+    CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+    CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+    CLIB_UNUSED (mpls_label_disposition_trace_t * t);
+
+    t = va_arg (*args, mpls_label_disposition_trace_t *);
+
+    s = format(s, "disp:%d", t->mdd);
+    return (s);
+}
+
+static uword
+ip4_mpls_label_disposition (vlib_main_t * vm,
+                           vlib_node_runtime_t * node,
+                           vlib_frame_t * frame)
+{
+    return (mpls_label_disposition_inline(vm, node, frame, 1, 0));
+}
+
+VLIB_REGISTER_NODE (ip4_mpls_label_disposition_node) = {
+    .function = ip4_mpls_label_disposition,
+    .name = "ip4-mpls-label-disposition",
+    .vector_size = sizeof (u32),
+
+    .format_trace = format_mpls_label_disposition_trace,
+    .n_next_nodes = 1,
+    .next_nodes = {
+        [0] = "ip4-drop",
+    }
+};
+VLIB_NODE_FUNCTION_MULTIARCH (ip4_mpls_label_disposition_node,
+                              ip4_mpls_label_disposition)
+
+static uword
+ip6_mpls_label_disposition (vlib_main_t * vm,
+                           vlib_node_runtime_t * node,
+                           vlib_frame_t * frame)
+{
+    return (mpls_label_disposition_inline(vm, node, frame, 0, 1));
+}
+
+VLIB_REGISTER_NODE (ip6_mpls_label_disposition_node) = {
+    .function = ip6_mpls_label_disposition,
+    .name = "ip6-mpls-label-disposition",
+    .vector_size = sizeof (u32),
+
+    .format_trace = format_mpls_label_disposition_trace,
+    .n_next_nodes = 1,
+    .next_nodes = {
+        [0] = "ip6-drop",
+    }
+};
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_mpls_label_disposition_node,
+                              ip6_mpls_label_disposition)
+
+static void
+mpls_disp_dpo_mem_show (void)
+{
+    fib_show_memory_usage("MPLS label",
+			  pool_elts(mpls_disp_dpo_pool),
+			  pool_len(mpls_disp_dpo_pool),
+			  sizeof(mpls_disp_dpo_t));
+}
+
+const static dpo_vft_t mdd_vft = {
+    .dv_lock = mpls_disp_dpo_lock,
+    .dv_unlock = mpls_disp_dpo_unlock,
+    .dv_format = format_mpls_disp_dpo,
+    .dv_mem_show = mpls_disp_dpo_mem_show,
+};
+
+const static char* const mpls_label_disp_ip4_nodes[] =
+{
+    "ip4-mpls-label-disposition",
+    NULL,
+};
+const static char* const mpls_label_disp_ip6_nodes[] =
+{
+    "ip6-mpls-label-disposition",
+    NULL,
+};
+const static char* const * const mpls_label_disp_nodes[DPO_PROTO_NUM] =
+{
+    [DPO_PROTO_IP4]  = mpls_label_disp_ip4_nodes,
+    [DPO_PROTO_IP6]  = mpls_label_disp_ip6_nodes,
+};
+
+
+void
+mpls_disp_dpo_module_init (void)
+{
+    dpo_register(DPO_MPLS_DISPOSITION, &mdd_vft, mpls_label_disp_nodes);
+}
diff --git a/src/vnet/dpo/mpls_disposition.h b/src/vnet/dpo/mpls_disposition.h
new file mode 100644
index 00000000000..9c0150830d2
--- /dev/null
+++ b/src/vnet/dpo/mpls_disposition.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __MPLS_DISP_DPO_H__
+#define __MPLS_DISP_DPO_H__
+
+#include <vnet/vnet.h>
+#include <vnet/mpls/packet.h>
+#include <vnet/dpo/dpo.h>
+#include <vnet/mfib/mfib_types.h>
+
+/**
+ * A representation of an MPLS label for imposition in the data-path
+ */
+typedef struct mpls_disp_dpo_t
+{
+    /**
+     * Next DPO in the graph
+     */
+    dpo_id_t mdd_dpo;
+
+    /**
+     * The protocol of the payload/packets that are being encapped
+     */
+    dpo_proto_t mdd_payload_proto;
+
+    /**
+     * RPF-ID (if this is an mcast disposition)
+     */
+    fib_rpf_id_t mdd_rpf_id;
+
+    /**
+     * Number of locks/users of the label
+     */
+    u16 mdd_locks;
+} mpls_disp_dpo_t;
+
+/**
+ * @brief Assert that the MPLS label object is less than a cache line in size.
+ * Should this get any bigger then we will need to reconsider how many labels
+ * can be pushed in one object.
+ */
+_Static_assert((sizeof(mpls_disp_dpo_t) <= CLIB_CACHE_LINE_BYTES),
+	       "MPLS Disposition DPO is larger than one cache line.");
+
+/**
+ * @brief Create an MPLS label object
+ *
+ * @param payload_proto The ptocool of the payload packets that will
+ *                      be imposed with this label header.
+ * @param dpo The parent of the created MPLS label object
+ */
+extern index_t mpls_disp_dpo_create(dpo_proto_t payload_proto,
+                                    fib_rpf_id_t rpf_id,
+                                    const dpo_id_t *dpo);
+
+extern u8* format_mpls_disp_dpo(u8 *s, va_list *args);
+
+
+/*
+ * Encapsulation violation for fast data-path access
+ */
+extern mpls_disp_dpo_t *mpls_disp_dpo_pool;
+
+static inline mpls_disp_dpo_t *
+mpls_disp_dpo_get (index_t index)
+{
+    return (pool_elt_at_index(mpls_disp_dpo_pool, index));
+}
+
+extern void mpls_disp_dpo_module_init(void);
+
+#endif
diff --git a/src/vnet/dpo/mpls_label_dpo.c b/src/vnet/dpo/mpls_label_dpo.c
index be9b28507ba..4d84b9001ce 100644
--- a/src/vnet/dpo/mpls_label_dpo.c
+++ b/src/vnet/dpo/mpls_label_dpo.c
@@ -562,7 +562,7 @@ VLIB_REGISTER_NODE (mpls_label_imposition_node) = {
     .format_trace = format_mpls_label_imposition_trace,
     .n_next_nodes = 1,
     .next_nodes = {
-        [0] = "error-drop",
+        [0] = "mpls-drop",
     }
 };
 VLIB_NODE_FUNCTION_MULTIARCH (mpls_label_imposition_node,
@@ -584,7 +584,7 @@ VLIB_REGISTER_NODE (ip4_mpls_label_imposition_node) = {
     .format_trace = format_mpls_label_imposition_trace,
     .n_next_nodes = 1,
     .next_nodes = {
-        [0] = "error-drop",
+        [0] = "ip4-drop",
     }
 };
 VLIB_NODE_FUNCTION_MULTIARCH (ip4_mpls_label_imposition_node,
@@ -606,7 +606,7 @@ VLIB_REGISTER_NODE (ip6_mpls_label_imposition_node) = {
     .format_trace = format_mpls_label_imposition_trace,
     .n_next_nodes = 1,
     .next_nodes = {
-        [0] = "error-drop",
+        [0] = "ip6-drop",
     }
 };
 VLIB_NODE_FUNCTION_MULTIARCH (ip6_mpls_label_imposition_node,
diff --git a/src/vnet/dpo/replicate_dpo.c b/src/vnet/dpo/replicate_dpo.c
index e25ceae91fe..9fdb9a05071 100644
--- a/src/vnet/dpo/replicate_dpo.c
+++ b/src/vnet/dpo/replicate_dpo.c
@@ -17,6 +17,7 @@
 #include <vnet/dpo/replicate_dpo.h>
 #include <vnet/dpo/drop_dpo.h>
 #include <vnet/adj/adj.h>
+#include <vnet/mpls/mpls_types.h>
 
 #undef REP_DEBUG
 
@@ -106,6 +107,7 @@ replicate_format (index_t repi,
     dpo_id_t *buckets;
     u32 i;
 
+    repi &= ~MPLS_IS_REPLICATE;
     rep = replicate_get(repi);
     vlib_get_combined_counter(&(replicate_main.repm_counters), repi, &to);
     buckets = replicate_get_buckets(rep);
@@ -187,6 +189,7 @@ replicate_set_bucket (index_t repi,
     replicate_t *rep;
     dpo_id_t *buckets;
 
+    repi &= ~MPLS_IS_REPLICATE;
     rep = replicate_get(repi);
     buckets = replicate_get_buckets(rep);
 
@@ -199,11 +202,13 @@ int
 replicate_is_drop (const dpo_id_t *dpo)
 {
     replicate_t *rep;
+    index_t repi;
 
     if (DPO_REPLICATE != dpo->dpoi_type)
         return (0);
 
-    rep = replicate_get(dpo->dpoi_index);
+    repi = dpo->dpoi_index & ~MPLS_IS_REPLICATE;
+    rep = replicate_get(repi);
 
     if (1 == rep->rep_n_buckets)
     {
@@ -218,6 +223,7 @@ replicate_get_bucket (index_t repi,
 {
     replicate_t *rep;
 
+    repi &= ~MPLS_IS_REPLICATE;
     rep = replicate_get(repi);
 
     return (replicate_get_bucket_i(rep, bucket));
@@ -288,9 +294,11 @@ replicate_multipath_update (const dpo_id_t *dpo,
     dpo_id_t *tmp_dpo;
     u32 ii, n_buckets;
     replicate_t *rep;
+    index_t repi;
 
     ASSERT(DPO_REPLICATE == dpo->dpoi_type);
-    rep = replicate_get(dpo->dpoi_index);
+    repi = dpo->dpoi_index & ~MPLS_IS_REPLICATE;
+    rep = replicate_get(repi);
     nhs = replicate_multipath_next_hop_fixup(next_hops,
                                              rep->rep_proto);
     n_buckets = vec_len(nhs);
@@ -718,7 +726,7 @@ format_replicate_trace (u8 * s, va_list * args)
 
   s = format (s, "replicate: %d via %U",
               t->rep_index,
-              format_dpo_id, &t->dpo);
+              format_dpo_id, &t->dpo, 0);
   return s;
 }
 
@@ -731,7 +739,7 @@ ip4_replicate (vlib_main_t * vm,
 }
 
 /**
- * @brief
+ * @brief IP4 replication node
  */
 VLIB_REGISTER_NODE (ip4_replicate_node) = {
   .function = ip4_replicate,
@@ -744,7 +752,7 @@ VLIB_REGISTER_NODE (ip4_replicate_node) = {
   .format_trace = format_replicate_trace,
   .n_next_nodes = 1,
   .next_nodes = {
-      [0] = "error-drop",
+      [0] = "ip4-drop",
   },
 };
 
@@ -757,7 +765,7 @@ ip6_replicate (vlib_main_t * vm,
 }
 
 /**
- * @brief
+ * @brief IPv6 replication node
  */
 VLIB_REGISTER_NODE (ip6_replicate_node) = {
   .function = ip6_replicate,
@@ -770,7 +778,33 @@ VLIB_REGISTER_NODE (ip6_replicate_node) = {
   .format_trace = format_replicate_trace,
   .n_next_nodes = 1,
   .next_nodes = {
-      [0] = "error-drop",
+      [0] = "ip6-drop",
+  },
+};
+
+static uword
+mpls_replicate (vlib_main_t * vm,
+                vlib_node_runtime_t * node,
+                vlib_frame_t * frame)
+{
+    return (replicate_inline (vm, node, frame));
+}
+
+/**
+ * @brief MPLS replication node
+ */
+VLIB_REGISTER_NODE (mpls_replicate_node) = {
+  .function = mpls_replicate,
+  .name = "mpls-replicate",
+  .vector_size = sizeof (u32),
+
+  .n_errors = ARRAY_LEN(replicate_dpo_error_strings),
+  .error_strings = replicate_dpo_error_strings,
+
+  .format_trace = format_replicate_trace,
+  .n_next_nodes = 1,
+  .next_nodes = {
+      [0] = "mpls-drop",
   },
 };
 
diff --git a/src/vnet/dpo/replicate_dpo.h b/src/vnet/dpo/replicate_dpo.h
index 77273015c9e..7383184a2ea 100644
--- a/src/vnet/dpo/replicate_dpo.h
+++ b/src/vnet/dpo/replicate_dpo.h
@@ -25,6 +25,7 @@
 #include <vnet/dpo/dpo.h>
 #include <vnet/dpo/load_balance.h>
 #include <vnet/fib/fib_types.h>
+#include <vnet/mpls/mpls_types.h>
 
 /**
  * replicate main
@@ -119,6 +120,7 @@ extern replicate_t *replicate_pool;
 static inline replicate_t*
 replicate_get (index_t repi)
 {
+    repi &= ~MPLS_IS_REPLICATE;
     return (pool_elt_at_index(replicate_pool, repi));
 }
 
diff --git a/src/vnet/ethernet/arp.c b/src/vnet/ethernet/arp.c
index c74a097ec79..dd509193386 100644
--- a/src/vnet/ethernet/arp.c
+++ b/src/vnet/ethernet/arp.c
@@ -507,6 +507,7 @@ arp_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
     case IP_LOOKUP_NEXT_PUNT:
     case IP_LOOKUP_NEXT_LOCAL:
     case IP_LOOKUP_NEXT_REWRITE:
+    case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
     case IP_LOOKUP_NEXT_MIDCHAIN:
     case IP_LOOKUP_NEXT_ICMP_ERROR:
     case IP_LOOKUP_N_NEXT:
diff --git a/src/vnet/ethernet/interface.c b/src/vnet/ethernet/interface.c
index 335e3f9f270..9ac30bc6652 100644
--- a/src/vnet/ethernet/interface.c
+++ b/src/vnet/ethernet/interface.c
@@ -115,7 +115,7 @@ ethernet_build_rewrite (vnet_main_t * vnm,
 #define _(a,b) case VNET_LINK_##a: type = ETHERNET_TYPE_##b; break
       _(IP4, IP4);
       _(IP6, IP6);
-      _(MPLS, MPLS_UNICAST);
+      _(MPLS, MPLS);
       _(ARP, ARP);
 #undef _
     default:
diff --git a/src/vnet/ethernet/node.c b/src/vnet/ethernet/node.c
index f7787ed21f8..5305012f26d 100755
--- a/src/vnet/ethernet/node.c
+++ b/src/vnet/ethernet/node.c
@@ -249,7 +249,7 @@ determine_next_node (ethernet_main_t * em,
     {
       *next0 = em->l3_next.input_next_ip6;
     }
-  else if (type0 == ETHERNET_TYPE_MPLS_UNICAST)
+  else if (type0 == ETHERNET_TYPE_MPLS)
     {
       *next0 = em->l3_next.input_next_mpls;
 
@@ -1252,7 +1252,7 @@ next_by_ethertype_register (next_by_ethertype_t * l3_next,
 	{
 	  l3_next->input_next_ip6 = next_index;
 	}
-      else if (ethertype == ETHERNET_TYPE_MPLS_UNICAST)
+      else if (ethertype == ETHERNET_TYPE_MPLS)
 	{
 	  l3_next->input_next_mpls = next_index;
 	}
diff --git a/src/vnet/ethernet/types.def b/src/vnet/ethernet/types.def
index 643f3152a85..7dab8ee1c1a 100644
--- a/src/vnet/ethernet/types.def
+++ b/src/vnet/ethernet/types.def
@@ -85,8 +85,8 @@ ethernet_type (0x876D, SECURE_DATA)
 ethernet_type (0x8808, MAC_CONTROL)
 ethernet_type (0x8809, SLOW_PROTOCOLS)
 ethernet_type (0x880B, PPP)
-ethernet_type (0x8847, MPLS_UNICAST)
-ethernet_type (0x8848, MPLS_MULTICAST)
+ethernet_type (0x8847, MPLS)
+ethernet_type (0x8848, MPLS_UPSTREAM_ASSIGNED)
 ethernet_type (0x8863, PPPOE_DISCOVERY)
 ethernet_type (0x8864, PPPOE_SESSION)
 ethernet_type (0x886D, INTEL_ANS)
diff --git a/src/vnet/fib/fib_api.h b/src/vnet/fib/fib_api.h
index f82753170db..10d0cb58a95 100644
--- a/src/vnet/fib/fib_api.h
+++ b/src/vnet/fib/fib_api.h
@@ -24,6 +24,7 @@ add_del_route_check (fib_protocol_t table_proto,
 		     fib_protocol_t next_hop_table_proto,
 		     u32 next_hop_table_id,
 		     u8 create_missing_tables,
+                     u8 is_rpf_id,
 		     u32 * fib_index, u32 * next_hop_fib_index);
 
 int
@@ -33,10 +34,13 @@ add_del_route_t_handler (u8 is_multipath,
 			 u8 is_unreach,
 			 u8 is_prohibit,
 			 u8 is_local,
+			 u8 is_multicast,
 			 u8 is_classify,
 			 u32 classify_table_index,
 			 u8 is_resolve_host,
 			 u8 is_resolve_attached,
+			 u8 is_interface_rx,
+                         u8 is_rpf_id,
 			 u32 fib_index,
 			 const fib_prefix_t * prefix,
 			 u8 next_hop_proto_is_ip4,
diff --git a/src/vnet/fib/fib_entry.c b/src/vnet/fib/fib_entry.c
index dac1fce995f..6f811aa1414 100644
--- a/src/vnet/fib/fib_entry.c
+++ b/src/vnet/fib/fib_entry.c
@@ -75,13 +75,7 @@ fib_entry_get_default_chain_type (const fib_entry_t *fib_entry)
 	return (FIB_FORW_CHAIN_TYPE_UNICAST_IP6);
     case FIB_PROTOCOL_MPLS:
 	if (MPLS_EOS == fib_entry->fe_prefix.fp_eos)
-	    /*
-	     * If the entry being asked is a eos-MPLS label entry,
-	     * then use the payload-protocol field, that we stashed there
-	     * for just this purpose
-	     */
-	    return (fib_forw_chain_type_from_dpo_proto(
-			fib_entry->fe_prefix.fp_payload_proto));
+	    return (FIB_FORW_CHAIN_TYPE_MPLS_EOS);
 	else
 	    return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
     }
@@ -371,6 +365,35 @@ fib_entry_contribute_urpf (fib_node_index_t entry_index,
 }
 
 /*
+ * If the client is request a chain for multicast forwarding then swap
+ * the chain type to one that can provide such transport.
+ */
+static fib_forward_chain_type_t
+fib_entry_chain_type_mcast_to_ucast (fib_forward_chain_type_t fct)
+{
+    switch (fct)
+    {
+    case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
+    case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
+        /*
+         * we can only transport IP multicast packets if there is an
+         * LSP.
+         */
+        fct = FIB_FORW_CHAIN_TYPE_MPLS_EOS;
+        break;
+    case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
+    case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
+    case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
+    case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
+    case FIB_FORW_CHAIN_TYPE_ETHERNET:
+    case FIB_FORW_CHAIN_TYPE_NSH:
+        break;
+    }
+
+    return (fct);
+}
+
+/*
  * fib_entry_contribute_forwarding
  *
  * Get an lock the forwarding information (DPO) contributed by the FIB entry.
@@ -385,6 +408,11 @@ fib_entry_contribute_forwarding (fib_node_index_t fib_entry_index,
 
     fib_entry = fib_entry_get(fib_entry_index);
 
+    /*
+     * mfib children ask for mcast chains. fix these to the appropriate ucast types.
+     */
+    fct = fib_entry_chain_type_mcast_to_ucast(fct);
+
     if (fct == fib_entry_get_default_chain_type(fib_entry))
     {
         dpo_copy(dpo, &fib_entry->fe_lb);
@@ -414,6 +442,11 @@ fib_entry_contribute_forwarding (fib_node_index_t fib_entry_index,
 
         dpo_copy(dpo, &fed->fd_dpo);
     }
+    /*
+     * don't allow the special index indicating replicate.vs.load-balance
+     * to escape to the clients
+     */
+    dpo->dpoi_index &= ~MPLS_IS_REPLICATE;
 }
 
 const dpo_id_t *
diff --git a/src/vnet/fib/fib_entry.h b/src/vnet/fib/fib_entry.h
index a3f75e6084a..b17a0b6444c 100644
--- a/src/vnet/fib/fib_entry.h
+++ b/src/vnet/fib/fib_entry.h
@@ -193,6 +193,11 @@ typedef enum fib_entry_attribute_t_ {
      */
     FIB_ENTRY_ATTRIBUTE_LOCAL,
     /**
+     * The prefix/address is a multicast prefix.
+     *  this aplies only to MPLS. IP multicast is handled by mfib
+     */
+    FIB_ENTRY_ATTRIBUTE_MULTICAST,
+    /**
      * The prefix/address exempted from loose uRPF check
      * To be used with caution
      */
@@ -200,7 +205,7 @@ typedef enum fib_entry_attribute_t_ {
     /**
      * Marker. add new entries before this one.
      */
-    FIB_ENTRY_ATTRIBUTE_LAST = FIB_ENTRY_ATTRIBUTE_URPF_EXEMPT,
+    FIB_ENTRY_ATTRIBUTE_LAST = FIB_ENTRY_ATTRIBUTE_MULTICAST,
 } fib_entry_attribute_t;
 
 /**
@@ -215,7 +220,8 @@ typedef enum fib_entry_attribute_t_ {
     [FIB_ENTRY_ATTRIBUTE_DROP]      = "drop",		\
     [FIB_ENTRY_ATTRIBUTE_EXCLUSIVE] = "exclusive",      \
     [FIB_ENTRY_ATTRIBUTE_LOCAL]     = "local",		\
-    [FIB_ENTRY_ATTRIBUTE_URPF_EXEMPT] = "uRPF-exempt"   \
+    [FIB_ENTRY_ATTRIBUTE_URPF_EXEMPT] = "uRPF-exempt",  \
+    [FIB_ENTRY_ATTRIBUTE_MULTICAST] = "multicast",	\
 }
 
 #define FOR_EACH_FIB_ATTRIBUTE(_item)			\
@@ -232,6 +238,7 @@ typedef enum fib_entry_flag_t_ {
     FIB_ENTRY_FLAG_LOCAL     = (1 << FIB_ENTRY_ATTRIBUTE_LOCAL),
     FIB_ENTRY_FLAG_IMPORT    = (1 << FIB_ENTRY_ATTRIBUTE_IMPORT),
     FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT = (1 << FIB_ENTRY_ATTRIBUTE_URPF_EXEMPT),
+    FIB_ENTRY_FLAG_MULTICAST = (1 << FIB_ENTRY_ATTRIBUTE_MULTICAST),
 } __attribute__((packed)) fib_entry_flag_t;
 
 /**
@@ -396,7 +403,7 @@ typedef struct fib_entry_t_ {
      *     paint the header straight on without the need to check the packet
      *     type to derive the EOS bit value.
      */
-    dpo_id_t fe_lb; // [FIB_FORW_CHAIN_MPLS_NUM];
+    dpo_id_t fe_lb;
     /**
      * Vector of source infos.
      * Most entries will only have 1 source. So we optimise for memory usage,
diff --git a/src/vnet/fib/fib_entry_src.c b/src/vnet/fib/fib_entry_src.c
index aa1d5a24a0f..a700282ee9b 100644
--- a/src/vnet/fib/fib_entry_src.c
+++ b/src/vnet/fib/fib_entry_src.c
@@ -17,6 +17,7 @@
 #include <vnet/dpo/load_balance.h>
 #include <vnet/dpo/mpls_label_dpo.h>
 #include <vnet/dpo/drop_dpo.h>
+#include <vnet/dpo/replicate_dpo.h>
 
 #include <vnet/fib/fib_entry_src.h>
 #include <vnet/fib/fib_table.h>
@@ -229,8 +230,6 @@ fib_forward_chain_type_t
 fib_entry_chain_type_fixup (const fib_entry_t *entry,
 			    fib_forward_chain_type_t fct)
 {
-    ASSERT(FIB_FORW_CHAIN_TYPE_MPLS_EOS == fct);
-
     /*
      * The EOS chain is a tricky since one cannot know the adjacency
      * to link to without knowing what the packets payload protocol
@@ -238,6 +237,11 @@ fib_entry_chain_type_fixup (const fib_entry_t *entry,
      */
     fib_forward_chain_type_t dfct;
 
+    if (FIB_FORW_CHAIN_TYPE_MPLS_EOS != fct)
+    {
+        return (fct);
+    }
+
     dfct = fib_entry_get_default_chain_type(entry);
 
     if (FIB_FORW_CHAIN_TYPE_MPLS_EOS == dfct)
@@ -303,7 +307,12 @@ fib_entry_src_collect_forwarding (fib_node_index_t pl_index,
          * found a matching extension. stack it to obtain the forwarding
          * info for this path.
          */
-        ctx->next_hops = fib_path_ext_stack(path_ext, ctx->fib_entry, ctx->fct, ctx->next_hops);
+        ctx->next_hops =
+            fib_path_ext_stack(path_ext,
+                               ctx->fct,
+                               fib_entry_chain_type_fixup(ctx->fib_entry,
+                                                          ctx->fct),
+                               ctx->next_hops);
     }
     else
     {
@@ -355,6 +364,9 @@ fib_entry_src_collect_forwarding (fib_node_index_t pl_index,
                                            fib_entry_chain_type_fixup(ctx->fib_entry,
                                                                       ctx->fct),
                                            &nh->path_dpo);
+            fib_path_stack_mpls_disp(path_index,
+                                     ctx->fib_entry->fe_prefix.fp_payload_proto,
+                                     &nh->path_dpo);
 
             break;
         }
@@ -424,50 +436,70 @@ fib_entry_src_mk_lb (fib_entry_t *fib_entry,
         /*
          * first time create
          */
-        flow_hash_config_t fhc;
-
-        fhc = fib_table_get_flow_hash_config(fib_entry->fe_fib_index,
-                                             dpo_proto_to_fib(lb_proto));
-        dpo_set(dpo_lb,
-                DPO_LOAD_BALANCE,
-                lb_proto,
-                load_balance_create(0, lb_proto, fhc));
+        if (esrc->fes_entry_flags & FIB_ENTRY_FLAG_MULTICAST)
+        {
+            dpo_set(dpo_lb,
+                    DPO_REPLICATE,
+                    lb_proto,
+                    MPLS_IS_REPLICATE | replicate_create(0, lb_proto));
+        }
+        else
+        {
+            flow_hash_config_t fhc;
+
+            fhc = fib_table_get_flow_hash_config(fib_entry->fe_fib_index,
+                                                 dpo_proto_to_fib(lb_proto));
+            dpo_set(dpo_lb,
+                    DPO_LOAD_BALANCE,
+                    lb_proto,
+                    load_balance_create(0, lb_proto, fhc));
+        }
     }
 
-    load_balance_multipath_update(dpo_lb,
-                                  ctx.next_hops,
-                                  fib_entry_calc_lb_flags(&ctx));
-    vec_free(ctx.next_hops);
-
-    /*
-     * if this entry is sourced by the uRPF-exempt source then we
-     * append the always present local0 interface (index 0) to the
-     * uRPF list so it is not empty. that way packets pass the loose check.
-     */
-    index_t ui = fib_path_list_get_urpf(esrc->fes_pl);
-
-    if ((fib_entry_is_sourced(fib_entry_get_index(fib_entry),
-			      FIB_SOURCE_URPF_EXEMPT) ||
-	 (esrc->fes_entry_flags & FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT))&&
-	(0 == fib_urpf_check_size(ui)))
+    if (esrc->fes_entry_flags & FIB_ENTRY_FLAG_MULTICAST)
     {
-	/*
-	 * The uRPF list we get from the path-list is shared by all
-	 * other users of the list, but the uRPF exemption applies
-	 * only to this prefix. So we need our own list.
-	 */
-	ui = fib_urpf_list_alloc_and_lock();
-	fib_urpf_list_append(ui, 0);
-	fib_urpf_list_bake(ui);
-	load_balance_set_urpf(dpo_lb->dpoi_index, ui);
-	fib_urpf_list_unlock(ui);
+        /*
+         * MPLS multicast
+         */
+        replicate_multipath_update(dpo_lb, ctx.next_hops);
     }
     else
     {
-	load_balance_set_urpf(dpo_lb->dpoi_index, ui);
+        load_balance_multipath_update(dpo_lb,
+                                      ctx.next_hops,
+                                      fib_entry_calc_lb_flags(&ctx));
+        vec_free(ctx.next_hops);
+
+        /*
+         * if this entry is sourced by the uRPF-exempt source then we
+         * append the always present local0 interface (index 0) to the
+         * uRPF list so it is not empty. that way packets pass the loose check.
+         */
+        index_t ui = fib_path_list_get_urpf(esrc->fes_pl);
+
+        if ((fib_entry_is_sourced(fib_entry_get_index(fib_entry),
+                                  FIB_SOURCE_URPF_EXEMPT) ||
+             (esrc->fes_entry_flags & FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT))&&
+            (0 == fib_urpf_check_size(ui)))
+        {
+            /*
+             * The uRPF list we get from the path-list is shared by all
+             * other users of the list, but the uRPF exemption applies
+             * only to this prefix. So we need our own list.
+             */
+            ui = fib_urpf_list_alloc_and_lock();
+            fib_urpf_list_append(ui, 0);
+            fib_urpf_list_bake(ui);
+            load_balance_set_urpf(dpo_lb->dpoi_index, ui);
+            fib_urpf_list_unlock(ui);
+        }
+        else
+        {
+            load_balance_set_urpf(dpo_lb->dpoi_index, ui);
+        }
+        load_balance_set_fib_entry_flags(dpo_lb->dpoi_index,
+                                         fib_entry_get_flags_i(fib_entry));
     }
-    load_balance_set_fib_entry_flags(dpo_lb->dpoi_index,
-                                     fib_entry_get_flags_i(fib_entry));
 }
 
 void
@@ -887,21 +919,6 @@ fib_entry_src_action_remove (fib_entry_t *fib_entry,
     return (sflags);
 }
 
-static inline int
-fib_route_recurses_via_self (const fib_prefix_t *prefix,
-			     const fib_route_path_t *rpath)
-{
-    /*
-     * not all zeros next hop &&
-     * is recursive path &&
-     * nexthop is same as the route's address
-     */
-    return ((!ip46_address_is_zero(&rpath->frp_addr)) &&
-	    (~0 == rpath->frp_sw_if_index) &&
-	    (0 == ip46_address_cmp(&rpath->frp_addr, &prefix->fp_addr)));
-
-}
-
 /*
  * fib_route_attached_cross_table
  *
@@ -962,14 +979,14 @@ fib_entry_src_flags_2_path_list_flags (fib_entry_flag_t eflags)
     {
 	plf |= FIB_PATH_LIST_FLAG_DROP;
     }
-    if (eflags & FIB_ENTRY_FLAG_LOCAL)
-    {
-	plf |= FIB_PATH_LIST_FLAG_LOCAL;
-    }
     if (eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
     {
 	plf |= FIB_PATH_LIST_FLAG_EXCLUSIVE;
     }
+    if (eflags & FIB_ENTRY_FLAG_LOCAL)
+    {
+	plf |= FIB_PATH_LIST_FLAG_LOCAL;
+    }
 
     return (plf);
 }
@@ -980,25 +997,6 @@ fib_entry_flags_update (const fib_entry_t *fib_entry,
 			fib_path_list_flags_t *pl_flags,
 			fib_entry_src_t *esrc)
 {
-    /*
-     * don't allow the addition of a recursive looped path for prefix
-     * via itself.
-     */
-    if (fib_route_recurses_via_self(&fib_entry->fe_prefix, rpath))	
-    {
-	/*
-	 * force the install of a drop path-list.
-	 * we want the entry to have some path-list, mainly so
-	 * the dodgy path can be rmeoved when the source stops playing
-	 * silly buggers.
-	 */
-	*pl_flags |= FIB_PATH_LIST_FLAG_DROP;
-    }
-    else
-    {
-	*pl_flags &= ~FIB_PATH_LIST_FLAG_DROP;
-    }
-
     if ((esrc->fes_src == FIB_SOURCE_API) ||
 	(esrc->fes_src == FIB_SOURCE_CLI))
     {
diff --git a/src/vnet/fib/fib_internal.h b/src/vnet/fib/fib_internal.h
index 2d980bcce0a..8abc0e07313 100644
--- a/src/vnet/fib/fib_internal.h
+++ b/src/vnet/fib/fib_internal.h
@@ -25,6 +25,7 @@
 #undef FIB_DEBUG
 
 extern void fib_prefix_from_mpls_label(mpls_label_t label,
+                                       mpls_eos_bit_t eos,
 				       fib_prefix_t *prf);
 
 extern int fib_route_path_cmp(const fib_route_path_t *rpath1,
diff --git a/src/vnet/fib/fib_path.c b/src/vnet/fib/fib_path.c
index 6b202a97824..f81f41706c5 100644
--- a/src/vnet/fib/fib_path.c
+++ b/src/vnet/fib/fib_path.c
@@ -21,6 +21,8 @@
 #include <vnet/dpo/receive_dpo.h>
 #include <vnet/dpo/load_balance_map.h>
 #include <vnet/dpo/lookup_dpo.h>
+#include <vnet/dpo/interface_dpo.h>
+#include <vnet/dpo/mpls_disposition.h>
 
 #include <vnet/adj/adj.h>
 #include <vnet/adj/adj_mcast.h>
@@ -67,6 +69,10 @@ typedef enum fib_path_type_t_ {
      */
     FIB_PATH_TYPE_DEAG,
     /**
+     * interface receive.
+     */
+    FIB_PATH_TYPE_INTF_RX,
+    /**
      * receive. it's for-us.
      */
     FIB_PATH_TYPE_RECEIVE,
@@ -88,6 +94,7 @@ typedef enum fib_path_type_t_ {
     [FIB_PATH_TYPE_SPECIAL]           = "special",	        \
     [FIB_PATH_TYPE_EXCLUSIVE]         = "exclusive",	        \
     [FIB_PATH_TYPE_DEAG]              = "deag",	                \
+    [FIB_PATH_TYPE_INTF_RX]           = "intf-rx",	        \
     [FIB_PATH_TYPE_RECEIVE]           = "receive",	        \
 }
 
@@ -220,10 +227,16 @@ typedef struct fib_path_t_ {
 		 * The next-hop
 		 */
 		ip46_address_t fp_ip;
-		/**
-		 * The local label to resolve through.
-		 */
-		mpls_label_t fp_local_label;
+		struct {
+                    /**
+                     * The local label to resolve through.
+                     */
+                    mpls_label_t fp_local_label;
+                    /**
+                     * The EOS bit of the resolving label
+                     */
+                    mpls_eos_bit_t fp_eos;
+                };
 	    } fp_nh;
 	    /**
 	     * The FIB table index in which to find the next-hop.
@@ -254,6 +267,10 @@ typedef struct fib_path_t_ {
 	     * The FIB index in which to perfom the next lookup
 	     */
 	    fib_node_index_t fp_tbl_id;
+            /**
+             * The RPF-ID to tag the packets with
+             */
+            fib_rpf_id_t fp_rpf_id;
 	} deag;
 	struct {
 	} special;
@@ -273,6 +290,12 @@ typedef struct fib_path_t_ {
 	     */
 	    ip46_address_t fp_addr;
 	} receive;
+	struct {
+	    /**
+	     * The interface on which the packets will be input.
+	     */
+	    u32 fp_interface;
+	} intf_rx;
     };
     STRUCT_MARK(path_hash_end);
 
@@ -444,9 +467,11 @@ format_fib_path (u8 * s, va_list * args)
     case FIB_PATH_TYPE_RECURSIVE:
 	if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
 	{
-	    s = format (s, "via %U",
+	    s = format (s, "via %U %U",
 			format_mpls_unicast_label,
-			path->recursive.fp_nh.fp_local_label);
+			path->recursive.fp_nh.fp_local_label,
+			format_mpls_eos_bit,
+			path->recursive.fp_nh.fp_eos);
 	}
 	else
 	{
@@ -465,6 +490,7 @@ format_fib_path (u8 * s, va_list * args)
 
 	break;
     case FIB_PATH_TYPE_RECEIVE:
+    case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_SPECIAL:
     case FIB_PATH_TYPE_DEAG:
     case FIB_PATH_TYPE_EXCLUSIVE:
@@ -736,6 +762,7 @@ fib_path_unresolve (fib_path_t *path)
         break;
     case FIB_PATH_TYPE_SPECIAL:
     case FIB_PATH_TYPE_RECEIVE:
+    case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_DEAG:
         /*
          * these hold only the path's DPO, which is reset below.
@@ -754,16 +781,24 @@ fib_path_unresolve (fib_path_t *path)
 }
 
 static fib_forward_chain_type_t
-fib_path_proto_to_chain_type (fib_protocol_t proto)
+fib_path_to_chain_type (const fib_path_t *path)
 {
-    switch (proto)
+    switch (path->fp_nh_proto)
     {
     case FIB_PROTOCOL_IP4:
 	return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
     case FIB_PROTOCOL_IP6:
 	return (FIB_FORW_CHAIN_TYPE_UNICAST_IP6);
     case FIB_PROTOCOL_MPLS:
-	return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
+        if (FIB_PATH_TYPE_RECURSIVE == path->fp_type &&
+            MPLS_EOS == path->recursive.fp_nh.fp_eos)
+        {
+            return (FIB_FORW_CHAIN_TYPE_MPLS_EOS);
+        }
+        else
+        {
+            return (FIB_FORW_CHAIN_TYPE_MPLS_EOS);
+        }
     }
     return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
 }
@@ -793,7 +828,7 @@ fib_path_back_walk_notify (fib_node_t *node,
 	     */
 	    fib_path_recursive_adj_update(
 		path,
-		fib_path_proto_to_chain_type(path->fp_nh_proto),
+		fib_path_to_chain_type(path),
 		&path->fp_dpo);
 	}
 	if ((FIB_NODE_BW_REASON_FLAG_ADJ_UPDATE & ctx->fnbw_reason) ||
@@ -931,6 +966,8 @@ FIXME comment
 	    path->fp_oper_flags |= FIB_PATH_OPER_FLAG_DROP;
 	}
 	break;
+    case FIB_PATH_TYPE_INTF_RX:
+        ASSERT(0);
     case FIB_PATH_TYPE_DEAG:
 	/*
 	 * FIXME When VRF delete is allowed this will need a poke.
@@ -986,6 +1023,14 @@ fib_path_route_flags_to_cfg_flags (const fib_route_path_t *rpath)
 	cfg_flags |= FIB_PATH_CFG_FLAG_LOCAL;
     if (rpath->frp_flags & FIB_ROUTE_PATH_ATTACHED)
 	cfg_flags |= FIB_PATH_CFG_FLAG_ATTACHED;
+    if (rpath->frp_flags & FIB_ROUTE_PATH_INTF_RX)
+	cfg_flags |= FIB_PATH_CFG_FLAG_INTF_RX;
+    if (rpath->frp_flags & FIB_ROUTE_PATH_RPF_ID)
+	cfg_flags |= FIB_PATH_CFG_FLAG_RPF_ID;
+    if (rpath->frp_flags & FIB_ROUTE_PATH_EXCLUSIVE)
+	cfg_flags |= FIB_PATH_CFG_FLAG_EXCLUSIVE;
+    if (rpath->frp_flags & FIB_ROUTE_PATH_DROP)
+	cfg_flags |= FIB_PATH_CFG_FLAG_DROP;
 
     return (cfg_flags);
 }
@@ -998,8 +1043,6 @@ fib_path_route_flags_to_cfg_flags (const fib_route_path_t *rpath)
  */
 fib_node_index_t
 fib_path_create (fib_node_index_t pl_index,
-		 fib_protocol_t nh_proto,
-		 fib_path_cfg_flags_t flags,
 		 const fib_route_path_t *rpath)
 {
     fib_path_t *path;
@@ -1012,7 +1055,7 @@ fib_path_create (fib_node_index_t pl_index,
 
     dpo_reset(&path->fp_dpo);
     path->fp_pl_index = pl_index;
-    path->fp_nh_proto = nh_proto;
+    path->fp_nh_proto = rpath->frp_proto;
     path->fp_via_fib = FIB_NODE_INDEX_INVALID;
     path->fp_weight = rpath->frp_weight;
     if (0 == path->fp_weight)
@@ -1023,8 +1066,7 @@ fib_path_create (fib_node_index_t pl_index,
          */
         path->fp_weight = 1;
     }
-    path->fp_cfg_flags = flags;
-    path->fp_cfg_flags |= fib_path_route_flags_to_cfg_flags(rpath);
+    path->fp_cfg_flags = fib_path_route_flags_to_cfg_flags(rpath);
 
     /*
      * deduce the path's tpye from the parementers and save what is needed.
@@ -1035,6 +1077,17 @@ fib_path_create (fib_node_index_t pl_index,
         path->receive.fp_interface = rpath->frp_sw_if_index;
         path->receive.fp_addr = rpath->frp_addr;
     }
+    else if (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_INTF_RX)
+    {
+        path->fp_type = FIB_PATH_TYPE_INTF_RX;
+        path->intf_rx.fp_interface = rpath->frp_sw_if_index;
+    }
+    else if (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_RPF_ID)
+    {
+        path->fp_type = FIB_PATH_TYPE_DEAG;
+        path->deag.fp_tbl_id = rpath->frp_fib_index;
+        path->deag.fp_rpf_id = rpath->frp_rpf_id;
+    }
     else if (~0 != rpath->frp_sw_if_index)
     {
         if (ip46_address_is_zero(&rpath->frp_addr))
@@ -1069,6 +1122,7 @@ fib_path_create (fib_node_index_t pl_index,
 	    if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
 	    {
 		path->recursive.fp_nh.fp_local_label = rpath->frp_local_label;
+                path->recursive.fp_nh.fp_eos = rpath->frp_eos;
 	    }
 	    else
 	    {
@@ -1238,17 +1292,13 @@ fib_path_cmp_i (const fib_path_t *path1,
 	    res = ip46_address_cmp(&path1->attached_next_hop.fp_nh,
 				   &path2->attached_next_hop.fp_nh);
 	    if (0 == res) {
-		res = vnet_sw_interface_compare(
-			  vnet_get_main(),
-			  path1->attached_next_hop.fp_interface,
-			  path2->attached_next_hop.fp_interface);
+		res = (path1->attached_next_hop.fp_interface -
+                       path2->attached_next_hop.fp_interface);
 	    }
 	    break;
 	case FIB_PATH_TYPE_ATTACHED:
-	    res = vnet_sw_interface_compare(
-		      vnet_get_main(),
-		      path1->attached.fp_interface,
-		      path2->attached.fp_interface);
+	    res = (path1->attached.fp_interface -
+                   path2->attached.fp_interface);
 	    break;
 	case FIB_PATH_TYPE_RECURSIVE:
 	    res = ip46_address_cmp(&path1->recursive.fp_nh,
@@ -1261,6 +1311,13 @@ fib_path_cmp_i (const fib_path_t *path1,
 	    break;
 	case FIB_PATH_TYPE_DEAG:
 	    res = (path1->deag.fp_tbl_id - path2->deag.fp_tbl_id);
+	    if (0 == res)
+	    {
+                res = (path1->deag.fp_rpf_id - path2->deag.fp_rpf_id);
+            }
+	    break;
+	case FIB_PATH_TYPE_INTF_RX:
+	    res = (path1->intf_rx.fp_interface - path2->intf_rx.fp_interface);
 	    break;
 	case FIB_PATH_TYPE_SPECIAL:
 	case FIB_PATH_TYPE_RECEIVE:
@@ -1336,22 +1393,22 @@ fib_path_cmp_w_route_path (fib_node_index_t path_index,
 				   &rpath->frp_addr);
 	    if (0 == res)
 	    {
-		res = vnet_sw_interface_compare(
-			  vnet_get_main(),
-			  path->attached_next_hop.fp_interface,
-			  rpath->frp_sw_if_index);
+		res = (path->attached_next_hop.fp_interface -
+                       rpath->frp_sw_if_index);
 	    }
 	    break;
 	case FIB_PATH_TYPE_ATTACHED:
-	    res = vnet_sw_interface_compare(
-		      vnet_get_main(),
-		      path->attached.fp_interface,
-		      rpath->frp_sw_if_index);
+	    res = (path->attached.fp_interface - rpath->frp_sw_if_index);
 	    break;
 	case FIB_PATH_TYPE_RECURSIVE:
             if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
             {
                 res = path->recursive.fp_nh.fp_local_label - rpath->frp_local_label;
+
+                if (res == 0)
+                {
+                    res = path->recursive.fp_nh.fp_eos - rpath->frp_eos;
+                }
             }
             else
             {
@@ -1364,9 +1421,16 @@ fib_path_cmp_w_route_path (fib_node_index_t path_index,
                 res = (path->recursive.fp_tbl_id - rpath->frp_fib_index);
             }
 	    break;
+	case FIB_PATH_TYPE_INTF_RX:
+	    res = (path->intf_rx.fp_interface - rpath->frp_sw_if_index);
+            break;
 	case FIB_PATH_TYPE_DEAG:
 	    res = (path->deag.fp_tbl_id - rpath->frp_fib_index);
-	    break;
+	    if (0 == res)
+            {
+                res = (path->deag.fp_rpf_id - rpath->frp_rpf_id);
+            }
+            break;
 	case FIB_PATH_TYPE_SPECIAL:
 	case FIB_PATH_TYPE_RECEIVE:
 	case FIB_PATH_TYPE_EXCLUSIVE:
@@ -1465,6 +1529,7 @@ fib_path_recursive_loop_detect (fib_node_index_t path_index,
     case FIB_PATH_TYPE_SPECIAL:
     case FIB_PATH_TYPE_DEAG:
     case FIB_PATH_TYPE_RECEIVE:
+    case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_EXCLUSIVE:
 	/*
 	 * these path types cannot be part of a loop, since they are the leaves
@@ -1563,7 +1628,9 @@ fib_path_resolve (fib_node_index_t path_index)
 
 	if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
 	{
-	    fib_prefix_from_mpls_label(path->recursive.fp_nh.fp_local_label, &pfx);
+	    fib_prefix_from_mpls_label(path->recursive.fp_nh.fp_local_label,
+                                       path->recursive.fp_nh.fp_eos,
+                                       &pfx);
 	}
 	else
 	{
@@ -1592,7 +1659,7 @@ fib_path_resolve (fib_node_index_t path_index)
 	 */
 	fib_path_recursive_adj_update(
 	    path,
-	    fib_path_proto_to_chain_type(path->fp_nh_proto),
+	    fib_path_to_chain_type(path),
 	    &path->fp_dpo);
 
 	break;
@@ -1605,16 +1672,25 @@ fib_path_resolve (fib_node_index_t path_index)
                  drop_dpo_get(fib_proto_to_dpo(path->fp_nh_proto)));
 	break;
     case FIB_PATH_TYPE_DEAG:
+    {
 	/*
 	 * Resolve via a lookup DPO.
          * FIXME. control plane should add routes with a table ID
 	 */
-	lookup_dpo_add_or_lock_w_fib_index(path->deag.fp_tbl_id,
-                                          fib_proto_to_dpo(path->fp_nh_proto),
-                                          LOOKUP_INPUT_DST_ADDR,
-                                          LOOKUP_TABLE_FROM_CONFIG,
-                                          &path->fp_dpo);
+        lookup_cast_t cast;
+        
+        cast = (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_RPF_ID ?
+                LOOKUP_MULTICAST :
+                LOOKUP_UNICAST);
+
+        lookup_dpo_add_or_lock_w_fib_index(path->deag.fp_tbl_id,
+                                           fib_proto_to_dpo(path->fp_nh_proto),
+                                           cast,
+                                           LOOKUP_INPUT_DST_ADDR,
+                                           LOOKUP_TABLE_FROM_CONFIG,
+                                           &path->fp_dpo);
 	break;
+    }
     case FIB_PATH_TYPE_RECEIVE:
 	/*
 	 * Resolve via a receive DPO.
@@ -1624,6 +1700,15 @@ fib_path_resolve (fib_node_index_t path_index)
                                 &path->receive.fp_addr,
                                 &path->fp_dpo);
 	break;
+    case FIB_PATH_TYPE_INTF_RX: {
+	/*
+	 * Resolve via a receive DPO.
+	 */
+	interface_dpo_add_or_lock(fib_proto_to_dpo(path->fp_nh_proto),
+                                  path->intf_rx.fp_interface,
+                                  &path->fp_dpo);
+	break;
+    }
     case FIB_PATH_TYPE_EXCLUSIVE:
 	/*
 	 * Resolve via the user provided DPO
@@ -1652,6 +1737,7 @@ fib_path_get_resolving_interface (fib_node_index_t path_index)
 	return (path->receive.fp_interface);
     case FIB_PATH_TYPE_RECURSIVE:
 	return (fib_entry_get_resolving_interface(path->fp_via_fib));    
+    case FIB_PATH_TYPE_INTF_RX:
     case FIB_PATH_TYPE_SPECIAL:
     case FIB_PATH_TYPE_DEAG:
     case FIB_PATH_TYPE_EXCLUSIVE:
@@ -1743,6 +1829,7 @@ fib_path_contribute_urpf (fib_node_index_t path_index,
 
     case FIB_PATH_TYPE_DEAG:
     case FIB_PATH_TYPE_RECEIVE:
+    case FIB_PATH_TYPE_INTF_RX:
 	/*
 	 * these path types don't link to an adj
 	 */
@@ -1751,6 +1838,44 @@ fib_path_contribute_urpf (fib_node_index_t path_index,
 }
 
 void
+fib_path_stack_mpls_disp (fib_node_index_t path_index,
+                          dpo_proto_t payload_proto,
+                          dpo_id_t *dpo)
+{
+    fib_path_t *path;
+
+    path = fib_path_get(path_index);
+
+    ASSERT(path);
+
+    switch (path->fp_type)
+    {
+    case FIB_PATH_TYPE_DEAG:
+    {
+        dpo_id_t tmp = DPO_INVALID;
+
+        dpo_copy(&tmp, dpo);
+        dpo_set(dpo,
+                DPO_MPLS_DISPOSITION,
+                payload_proto,
+                mpls_disp_dpo_create(payload_proto,
+                                     path->deag.fp_rpf_id,
+                                     &tmp));
+        dpo_reset(&tmp);
+        break;
+    }                
+    case FIB_PATH_TYPE_RECEIVE:
+    case FIB_PATH_TYPE_ATTACHED:
+    case FIB_PATH_TYPE_ATTACHED_NEXT_HOP:
+    case FIB_PATH_TYPE_RECURSIVE:
+    case FIB_PATH_TYPE_INTF_RX:
+    case FIB_PATH_TYPE_EXCLUSIVE:
+    case FIB_PATH_TYPE_SPECIAL:
+        break;
+    }
+}
+
+void
 fib_path_contribute_forwarding (fib_node_index_t path_index,
 				fib_forward_chain_type_t fct,
 				dpo_id_t *dpo)
@@ -1769,7 +1894,7 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
      * This then represents the path's 'native' protocol; IP.
      * For all others will need to go find something else.
      */
-    if (fib_path_proto_to_chain_type(path->fp_nh_proto) == fct)
+    if (fib_path_to_chain_type(path) == fct)
     {
 	dpo_copy(dpo, &path->fp_dpo);
     }
@@ -1813,10 +1938,10 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
 	    case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
 	    case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
 	    case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
-		fib_path_recursive_adj_update(path, fct, dpo);
-		break;
 	    case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
 	    case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
+		fib_path_recursive_adj_update(path, fct, dpo);
+		break;
 	    case FIB_FORW_CHAIN_TYPE_ETHERNET:
 	    case FIB_FORW_CHAIN_TYPE_NSH:
 		ASSERT(0);
@@ -1829,13 +1954,14 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
 	    case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
                 lookup_dpo_add_or_lock_w_table_id(MPLS_FIB_DEFAULT_TABLE_ID,
                                                   DPO_PROTO_MPLS,
+                                                  LOOKUP_UNICAST,
                                                   LOOKUP_INPUT_DST_ADDR,
                                                   LOOKUP_TABLE_FROM_CONFIG,
                                                   dpo);
                 break;
+	    case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
 	    case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
 	    case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
-	    case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
 		dpo_copy(dpo, &path->fp_dpo);
 		break;
 	    case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
@@ -1870,7 +1996,7 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
                     ai = adj_mcast_add_or_lock(path->fp_nh_proto,
                                                fib_forw_chain_type_to_link_type(fct),
                                                path->attached.fp_interface);
-                    dpo_set(dpo, DPO_ADJACENCY_MCAST,
+                    dpo_set(dpo, DPO_ADJACENCY,
                             fib_forw_chain_type_to_dpo_proto(fct),
                             ai);
                     adj_unlock(ai);
@@ -1878,6 +2004,14 @@ fib_path_contribute_forwarding (fib_node_index_t path_index,
                 break;
             }
             break;
+        case FIB_PATH_TYPE_INTF_RX:
+            /*
+             * Create the adj needed for sending IP multicast traffic
+             */
+            interface_dpo_add_or_lock(fib_forw_chain_type_to_dpo_proto(fct),
+                                      path->attached.fp_interface,
+                                      dpo);
+            break;
         case FIB_PATH_TYPE_RECEIVE:
         case FIB_PATH_TYPE_SPECIAL:
             dpo_copy(dpo, &path->fp_dpo);
diff --git a/src/vnet/fib/fib_path.h b/src/vnet/fib/fib_path.h
index 14efc1ab842..334be6f56e6 100644
--- a/src/vnet/fib/fib_path.h
+++ b/src/vnet/fib/fib_path.h
@@ -69,6 +69,14 @@ typedef enum fib_path_cfg_attribute_t_ {
     /**
      * The path is a for-us path
      */
+    FIB_PATH_CFG_ATTRIBUTE_INTF_RX,
+    /**
+     * The path is a deag with rpf-id
+     */
+    FIB_PATH_CFG_ATTRIBUTE_RPF_ID,
+    /**
+     * The path is an interface recieve
+     */
     FIB_PATH_CFG_ATTRIBUTE_LOCAL,
     /**
      * Marker. Add new types before this one, then update it.
@@ -88,6 +96,8 @@ typedef enum fib_path_cfg_attribute_t_ {
     [FIB_PATH_CFG_ATTRIBUTE_RESOLVE_ATTACHED] = "resolve-attached", \
     [FIB_PATH_CFG_ATTRIBUTE_LOCAL] = "local",	        \
     [FIB_PATH_CFG_ATTRIBUTE_ATTACHED] = "attached",	\
+    [FIB_PATH_CFG_ATTRIBUTE_INTF_RX] = "interface-rx",	\
+    [FIB_PATH_CFG_ATTRIBUTE_RPF_ID] = "rpf-id",         \
 }
 
 #define FOR_EACH_FIB_PATH_CFG_ATTRIBUTE(_item) \
@@ -106,6 +116,8 @@ typedef enum fib_path_cfg_flags_t_ {
     FIB_PATH_CFG_FLAG_RESOLVE_ATTACHED = (1 << FIB_PATH_CFG_ATTRIBUTE_RESOLVE_ATTACHED),
     FIB_PATH_CFG_FLAG_LOCAL = (1 << FIB_PATH_CFG_ATTRIBUTE_LOCAL),
     FIB_PATH_CFG_FLAG_ATTACHED = (1 << FIB_PATH_CFG_ATTRIBUTE_ATTACHED),
+    FIB_PATH_CFG_FLAG_INTF_RX = (1 << FIB_PATH_CFG_ATTRIBUTE_INTF_RX),
+    FIB_PATH_CFG_FLAG_RPF_ID = (1 << FIB_PATH_CFG_ATTRIBUTE_RPF_ID),
 } __attribute__ ((packed)) fib_path_cfg_flags_t;
 
 
@@ -117,8 +129,6 @@ extern u8 *fib_path_adj_format(fib_node_index_t pi,
 extern u8 * format_fib_path(u8 * s, va_list * args);
 
 extern fib_node_index_t fib_path_create(fib_node_index_t pl_index,
-					fib_protocol_t nh_proto,
-					fib_path_cfg_flags_t flags,
 					const fib_route_path_t *path);
 extern fib_node_index_t fib_path_create_special(fib_node_index_t pl_index,
 						fib_protocol_t nh_proto,
@@ -145,6 +155,9 @@ extern load_balance_path_t * fib_path_append_nh_for_multipath_hash(
     fib_node_index_t path_index,
     fib_forward_chain_type_t fct,
     load_balance_path_t *hash_key);
+extern void fib_path_stack_mpls_disp(fib_node_index_t path_index,
+                                     dpo_proto_t payload_proto,
+                                     dpo_id_t *dpo);
 extern void fib_path_contribute_forwarding(fib_node_index_t path_index,
 					   fib_forward_chain_type_t type,
 					   dpo_id_t *dpo);
diff --git a/src/vnet/fib/fib_path_ext.c b/src/vnet/fib/fib_path_ext.c
index f75b5626c04..08293bcf175 100644
--- a/src/vnet/fib/fib_path_ext.c
+++ b/src/vnet/fib/fib_path_ext.c
@@ -103,8 +103,8 @@ fib_path_ext_is_imp_null (fib_path_ext_t *path_ext)
 
 load_balance_path_t *
 fib_path_ext_stack (fib_path_ext_t *path_ext,
-		    const fib_entry_t *entry,
                     fib_forward_chain_type_t child_fct,
+                    fib_forward_chain_type_t imp_null_fct,
 		    load_balance_path_t *nhs)
 {
     fib_forward_chain_type_t parent_fct;
@@ -129,7 +129,7 @@ fib_path_ext_stack (fib_path_ext_t *path_ext,
 	 */
 	if (fib_path_ext_is_imp_null(path_ext))
 	{
-            parent_fct = fib_entry_chain_type_fixup(entry, child_fct);
+            parent_fct = imp_null_fct;
         }
         else
         {
diff --git a/src/vnet/fib/fib_path_ext.h b/src/vnet/fib/fib_path_ext.h
index cf8f8df00c6..d617700d026 100644
--- a/src/vnet/fib/fib_path_ext.h
+++ b/src/vnet/fib/fib_path_ext.h
@@ -18,6 +18,7 @@
 
 #include <vnet/mpls/mpls.h>
 #include <vnet/fib/fib_types.h>
+#include <vnet/dpo/load_balance.h>
 
 /**
  * A path extension is a per-entry addition to the forwarding information
@@ -61,8 +62,8 @@ extern void fib_path_ext_resolve(fib_path_ext_t *path_ext,
 				 fib_node_index_t path_list_index);
 
 extern load_balance_path_t *fib_path_ext_stack(fib_path_ext_t *path_ext,
-                                               const struct fib_entry_t_ *entry,
                                                fib_forward_chain_type_t fct,
+                                               fib_forward_chain_type_t imp_null_fct,
                                                load_balance_path_t *nhs);
 
 #endif
diff --git a/src/vnet/fib/fib_path_list.c b/src/vnet/fib/fib_path_list.c
index b9a391b33f5..ea6565dd19b 100644
--- a/src/vnet/fib/fib_path_list.c
+++ b/src/vnet/fib/fib_path_list.c
@@ -41,13 +41,6 @@ typedef struct fib_path_list_t_ {
     fib_path_list_flags_t fpl_flags;
 
     /**
-     * The next-hop protocol for the paths in this path list.
-     * Note that fixing the proto here means we don't support a mix of
-     * v4 and v6 paths. ho hum.
-     */
-    fib_protocol_t fpl_nh_proto;
-
-    /**
      * Vector of paths indicies for all configured paths.
      * For shareable path-lists this list MUST not change.
      */
@@ -57,6 +50,11 @@ typedef struct fib_path_list_t_ {
      * the RPF list calculated for this path list
      */
     fib_node_index_t fpl_urpf;
+
+    /**
+     * Hash table of paths. valid only with INDEXED flag
+     */
+    uword *fpl_db;
 } fib_path_list_t;
 
 /*
@@ -131,7 +129,6 @@ format_fib_path_list (u8 * s, va_list * args)
     
     s = format (s, "    index:%u", fib_path_list_get_index(path_list));
     s = format (s, " locks:%u", path_list->fpl_node.fn_locks);
-    s = format (s, " proto:%U", format_fib_protocol, path_list->fpl_nh_proto);
 
     if (FIB_PATH_LIST_FLAG_NONE != path_list->fpl_flags)
     {
@@ -156,26 +153,6 @@ format_fib_path_list (u8 * s, va_list * args)
 }
 
 u8 *
-fib_path_list_adjs_format (fib_node_index_t path_list_index,
-			   u32 indent,
-			   u8 * s)
-{
-    fib_path_list_t *path_list;
-    u32 i;
-
-    path_list = fib_path_list_get(path_list_index);
-
-    vec_foreach_index (i, path_list->fpl_paths)
-    {
-	s = fib_path_adj_format(path_list->fpl_paths[i],
-				indent, s);
-    }
-
-    return (s);
-}
-
-
-u8 *
 fib_path_list_format (fib_node_index_t path_list_index,
 		      u8 * s)
 {
@@ -648,27 +625,6 @@ fib_path_list_is_looped (fib_node_index_t path_list_index)
     return (path_list->fpl_flags & FIB_PATH_LIST_FLAG_LOOPED);
 }
 
-static fib_path_cfg_flags_t 
-fib_path_list_flags_2_path_flags (fib_path_list_flags_t plf)
-{
-    fib_path_cfg_flags_t pf = FIB_PATH_CFG_FLAG_NONE;
-
-    if (plf & FIB_PATH_LIST_FLAG_LOCAL)
-    {
-	pf |= FIB_PATH_CFG_FLAG_LOCAL;
-    }
-    if (plf & FIB_PATH_LIST_FLAG_DROP)
-    {
-	pf |= FIB_PATH_CFG_FLAG_DROP;
-    }
-    if (plf & FIB_PATH_LIST_FLAG_EXCLUSIVE)
-    {
-	pf |= FIB_PATH_CFG_FLAG_EXCLUSIVE;
-    }
-
-    return (pf);
-}
-
 static fib_path_list_flags_t
 fib_path_list_flags_fixup (fib_path_list_flags_t flags)
 {
@@ -695,18 +651,15 @@ fib_path_list_create (fib_path_list_flags_t flags,
     flags = fib_path_list_flags_fixup(flags);
     path_list = fib_path_list_alloc(&path_list_index);
     path_list->fpl_flags = flags;
-    /*
-     * we'll assume for now all paths are the same next-hop protocol
-     */
-    path_list->fpl_nh_proto = rpaths[0].frp_proto;
 
-    vec_foreach_index(i, rpaths)
+    if (NULL != rpaths)
     {
-	vec_add1(path_list->fpl_paths,
-		 fib_path_create(path_list_index,
-				 path_list->fpl_nh_proto,
-				 fib_path_list_flags_2_path_flags(flags),
-				 &rpaths[i]));
+        vec_foreach_index(i, rpaths)
+        {
+            vec_add1(path_list->fpl_paths,
+                     fib_path_create(path_list_index,
+                                     &rpaths[i]));
+        }
     }
 
     /*
@@ -748,6 +701,27 @@ fib_path_list_create (fib_path_list_flags_t flags,
     return (path_list_index);
 }
 
+static fib_path_cfg_flags_t 
+fib_path_list_flags_2_path_flags (fib_path_list_flags_t plf)
+{
+    fib_path_cfg_flags_t pf = FIB_PATH_CFG_FLAG_NONE;
+
+    if (plf & FIB_PATH_LIST_FLAG_DROP)
+    {
+	pf |= FIB_PATH_CFG_FLAG_DROP;
+    }
+    if (plf & FIB_PATH_LIST_FLAG_EXCLUSIVE)
+    {
+	pf |= FIB_PATH_CFG_FLAG_EXCLUSIVE;
+    }
+    if (plf & FIB_PATH_LIST_FLAG_LOCAL)
+    {
+        pf |= FIB_PATH_CFG_FLAG_LOCAL;
+    }
+
+    return (pf);
+}
+
 fib_node_index_t
 fib_path_list_create_special (fib_protocol_t nh_proto,
 			      fib_path_list_flags_t flags,
@@ -758,11 +732,10 @@ fib_path_list_create_special (fib_protocol_t nh_proto,
 
     path_list = fib_path_list_alloc(&path_list_index);
     path_list->fpl_flags = flags;
-    path_list->fpl_nh_proto = nh_proto;
 
     path_index =
 	fib_path_create_special(path_list_index,
-				path_list->fpl_nh_proto,
+                                nh_proto,
 				fib_path_list_flags_2_path_flags(flags),
 				dpo);
     vec_add1(path_list->fpl_paths, path_index);
@@ -776,6 +749,30 @@ fib_path_list_create_special (fib_protocol_t nh_proto,
 }
 
 /*
+ * return the index info the path-lists's vector of paths, of the matching path.
+ * ~0 if not found
+ */
+u32
+fib_path_list_find_rpath (fib_node_index_t path_list_index,
+                          const fib_route_path_t *rpath)
+{
+    fib_path_list_t *path_list;
+    u32 ii;
+
+    path_list = fib_path_list_get(path_list_index);
+
+    vec_foreach_index (ii, path_list->fpl_paths)
+    {
+        if (!fib_path_cmp_w_route_path(path_list->fpl_paths[ii], rpath))
+        {
+            return (ii);
+        }
+    }
+    return (~0);
+}
+
+
+/*
  * fib_path_list_copy_and_path_add
  *
  * Create a copy of a path-list and append one more path to it.
@@ -783,12 +780,61 @@ fib_path_list_create_special (fib_protocol_t nh_proto,
  * can be a shared path-list from the data-base.
  */
 fib_node_index_t
+fib_path_list_path_add (fib_node_index_t path_list_index,
+                        const fib_route_path_t *rpaths)
+{
+    fib_node_index_t new_path_index, *orig_path_index;
+    fib_path_list_t *path_list;
+
+    /*
+     * alloc the new list before we retrieve the old one, lest
+     * the alloc result in a realloc
+     */
+    path_list = fib_path_list_get(path_list_index);
+
+    ASSERT(1 == vec_len(rpaths));
+    ASSERT(!(path_list->fpl_flags & FIB_PATH_LIST_FLAG_SHARED));
+
+    FIB_PATH_LIST_DBG(orig_path_list, "path-add");
+
+    new_path_index = fib_path_create(path_list_index,
+                                     rpaths);
+
+    vec_foreach (orig_path_index, path_list->fpl_paths)
+    {
+        /*
+         * don't add duplicate paths
+         */
+	if (0 == fib_path_cmp(new_path_index, *orig_path_index))
+        {
+            return (*orig_path_index);
+        }
+    }
+
+    /*
+     * Add the new path - no sort, no sharing, no key..
+     */
+    vec_add1(path_list->fpl_paths, new_path_index);
+
+    FIB_PATH_LIST_DBG(path_list, "path-added");
+
+    /*
+     * no shared path list requested. resolve and use the one
+     * just created.
+     */
+    fib_path_resolve(new_path_index);
+
+    return (new_path_index);
+}
+
+fib_node_index_t
 fib_path_list_copy_and_path_add (fib_node_index_t orig_path_list_index,
-				 fib_path_list_flags_t flags,
-				 const fib_route_path_t *rpaths)
+                                 fib_path_list_flags_t flags,
+                                 const fib_route_path_t *rpaths)
 {
     fib_node_index_t path_index, new_path_index, *orig_path_index;
     fib_path_list_t *path_list, *orig_path_list;
+    fib_node_index_t exist_path_list_index;
     fib_node_index_t path_list_index;
     fib_node_index_t pi;
 
@@ -806,13 +852,11 @@ fib_path_list_copy_and_path_add (fib_node_index_t orig_path_list_index,
 
     flags = fib_path_list_flags_fixup(flags);
     path_list->fpl_flags = flags;
-    path_list->fpl_nh_proto = orig_path_list->fpl_nh_proto;
+
     vec_validate(path_list->fpl_paths, vec_len(orig_path_list->fpl_paths));
     pi = 0;
 
     new_path_index = fib_path_create(path_list_index,
-                                     path_list->fpl_nh_proto,
-                                     fib_path_list_flags_2_path_flags(flags),
                                      rpaths);
 
     vec_foreach (orig_path_index, orig_path_list->fpl_paths)
@@ -845,47 +889,80 @@ fib_path_list_copy_and_path_add (fib_node_index_t orig_path_list_index,
     FIB_PATH_LIST_DBG(path_list, "path-added");
 
     /*
-     * If a shared path list is requested, consult the DB for a match
+     * check for a matching path-list in the DB.
+     * If we find one then we can return the existing one and destroy the
+     * new one just created.
      */
-    if (path_list->fpl_flags & FIB_PATH_LIST_FLAG_SHARED)
+    exist_path_list_index = fib_path_list_db_find(path_list);
+    if (FIB_NODE_INDEX_INVALID != exist_path_list_index)
     {
-	fib_node_index_t exist_path_list_index;
-	/*
-	 * check for a matching path-list in the DB.
-	 * If we find one then we can return the existing one and destroy the
-	 * new one just created.
-	 */
-	exist_path_list_index = fib_path_list_db_find(path_list);
-	if (FIB_NODE_INDEX_INVALID != exist_path_list_index)
-	{
-	    fib_path_list_destroy(path_list);
+        fib_path_list_destroy(path_list);
 	
-	    path_list_index = exist_path_list_index;
-	}
-	else
-	{
-	    /*
-	     * if there was not a matching path-list, then this
-	     * new one will need inserting into the DB and resolving.
-	     */
-	    fib_path_list_db_insert(path_list_index);
-
-	    path_list = fib_path_list_resolve(path_list);
-	}
+        path_list_index = exist_path_list_index;
     }
     else
     {
-	/*
-	 * no shared path list requested. resolve and use the one
-	 * just created.
-	 */
-	path_list = fib_path_list_resolve(path_list);
+        /*
+         * if there was not a matching path-list, then this
+         * new one will need inserting into the DB and resolving.
+         */
+        fib_path_list_db_insert(path_list_index);
+
+        path_list = fib_path_list_resolve(path_list);
     }
 
     return (path_list_index);
 }
 
 /*
+ * fib_path_list_path_remove
+ */
+fib_node_index_t
+fib_path_list_path_remove (fib_node_index_t path_list_index,
+                           const fib_route_path_t *rpaths)
+{
+    fib_node_index_t match_path_index, tmp_path_index;
+    fib_path_list_t *path_list;
+    fib_node_index_t pi;
+
+    path_list = fib_path_list_get(path_list_index);
+
+    ASSERT(1 == vec_len(rpaths));
+    ASSERT(!(path_list->fpl_flags & FIB_PATH_LIST_FLAG_SHARED));
+
+    FIB_PATH_LIST_DBG(orig_path_list, "path-remove");
+
+    /*
+     * create a representation of the path to be removed, so it
+     * can be used as a comparison object during the copy.
+     */
+    tmp_path_index = fib_path_create(path_list_index,
+				     rpaths);
+    match_path_index = FIB_NODE_INDEX_INVALID;
+
+    vec_foreach_index (pi, path_list->fpl_paths)
+    {
+	if (0 == fib_path_cmp(tmp_path_index,
+                              path_list->fpl_paths[pi]))
+        {
+            /*
+             * match - remove it
+             */
+            match_path_index = path_list->fpl_paths[pi];
+            fib_path_destroy(match_path_index);
+            vec_del1(path_list->fpl_paths, pi);
+	}
+    }
+
+    /*
+     * done with the temporary now
+     */
+    fib_path_destroy(tmp_path_index);
+
+    return (match_path_index);
+}
+
+/*
  * fib_path_list_copy_and_path_remove
  *
  * Copy the path-list excluding the path passed.
@@ -911,7 +988,6 @@ fib_path_list_copy_and_path_remove (fib_node_index_t orig_path_list_index,
     FIB_PATH_LIST_DBG(orig_path_list, "copy-remove");
 
     path_list->fpl_flags = flags;
-    path_list->fpl_nh_proto = orig_path_list->fpl_nh_proto;
     /*
      * allocate as many paths as we might need in one go, rather than
      * using vec_add to do a few at a time.
@@ -927,8 +1003,6 @@ fib_path_list_copy_and_path_remove (fib_node_index_t orig_path_list_index,
      * can be used as a comparison object during the copy.
      */
     tmp_path_index = fib_path_create(path_list_index,
-				     path_list->fpl_nh_proto,
-				     fib_path_list_flags_2_path_flags(flags),
 				     rpaths);
 
     vec_foreach (orig_path_index, orig_path_list->fpl_paths)
diff --git a/src/vnet/fib/fib_path_list.h b/src/vnet/fib/fib_path_list.h
index b4971addfba..9d2462119fb 100644
--- a/src/vnet/fib/fib_path_list.h
+++ b/src/vnet/fib/fib_path_list.h
@@ -39,6 +39,11 @@ typedef enum fib_path_list_attribute_t_ {
      */
     FIB_PATH_LIST_ATTRIBUTE_SHARED = FIB_PATH_LIST_ATTRIBUTE_FIRST,
     /**
+     * Indexed means the path-list keeps a hash table of all paths for
+     * fast lookup. The lookup result is the fib_node_index of the path.
+     */
+    FIB_PATH_LIST_ATTRIBUTE_INDEXED,
+    /**
      * explicit drop path-list. Used when the entry source needs to 
      * force a drop, despite the fact the path info is present.
      */
@@ -73,6 +78,7 @@ typedef enum fib_path_list_attribute_t_ {
 typedef enum fib_path_list_flags_t_ {
     FIB_PATH_LIST_FLAG_NONE      = 0,
     FIB_PATH_LIST_FLAG_SHARED    = (1 << FIB_PATH_LIST_ATTRIBUTE_SHARED),
+    FIB_PATH_LIST_FLAG_INDEXED    = (1 << FIB_PATH_LIST_ATTRIBUTE_INDEXED),
     FIB_PATH_LIST_FLAG_DROP      = (1 << FIB_PATH_LIST_ATTRIBUTE_DROP),
     FIB_PATH_LIST_FLAG_LOCAL     = (1 << FIB_PATH_LIST_ATTRIBUTE_LOCAL),
     FIB_PATH_LIST_FLAG_EXCLUSIVE = (1 << FIB_PATH_LIST_ATTRIBUTE_EXCLUSIVE),
@@ -83,10 +89,11 @@ typedef enum fib_path_list_flags_t_ {
 
 #define FIB_PATH_LIST_ATTRIBUTES {       		 \
     [FIB_PATH_LIST_ATTRIBUTE_SHARED]    = "shared",	 \
+    [FIB_PATH_LIST_ATTRIBUTE_INDEXED]    = "indexed",	 \
     [FIB_PATH_LIST_ATTRIBUTE_RESOLVED]  = "resolved",	 \
     [FIB_PATH_LIST_ATTRIBUTE_DROP]      = "drop",	 \
     [FIB_PATH_LIST_ATTRIBUTE_EXCLUSIVE] = "exclusive",   \
-    [FIB_PATH_LIST_ATTRIBUTE_LOCAL]     = "local",	 \
+    [FIB_PATH_LIST_ATTRIBUTE_LOCAL]     = "local",      \
     [FIB_PATH_LIST_ATTRIBUTE_LOOPED]     = "looped",	 \
     [FIB_PATH_LIST_ATTRIBUTE_NO_URPF]     = "no-uRPF",	 \
 }
@@ -110,6 +117,13 @@ extern fib_node_index_t fib_path_list_copy_and_path_remove(
     fib_node_index_t pl_index,
     fib_path_list_flags_t flags,
     const fib_route_path_t *path);
+extern fib_node_index_t fib_path_list_path_add (
+    fib_node_index_t path_list_index,
+    const fib_route_path_t *rpaths);
+extern fib_node_index_t fib_path_list_path_remove (
+    fib_node_index_t path_list_index,
+    const fib_route_path_t *rpaths);
+
 extern u32 fib_path_list_get_n_paths(fib_node_index_t pl_index);
 
 extern void fib_path_list_contribute_forwarding(fib_node_index_t path_list_index,
@@ -137,11 +151,11 @@ extern int fib_path_list_is_looped(fib_node_index_t path_list_index);
 extern fib_protocol_t fib_path_list_get_proto(fib_node_index_t path_list_index);
 extern u8 * fib_path_list_format(fib_node_index_t pl_index,
 				 u8 * s);
-extern u8 * fib_path_list_adjs_format(fib_node_index_t pl_index,
-				      u32 indent,
-				      u8 * s);
 extern index_t fib_path_list_lb_map_add_or_lock(fib_node_index_t pl_index,
                                                 const fib_node_index_t *pis);
+extern u32 fib_path_list_find_rpath (fib_node_index_t path_list_index,
+                                     const fib_route_path_t *rpath);
+
 /**
  * A callback function type for walking a path-list's paths
  */
diff --git a/src/vnet/fib/fib_table.c b/src/vnet/fib/fib_table.c
index 6c3162e7489..b31f35e3520 100644
--- a/src/vnet/fib/fib_table.c
+++ b/src/vnet/fib/fib_table.c
@@ -475,8 +475,21 @@ fib_table_entry_special_remove (u32 fib_index,
  */
 static void
 fib_table_route_path_fixup (const fib_prefix_t *prefix,
+                            fib_entry_flag_t eflags,
 			    fib_route_path_t *path)
 {
+    /*
+     * not all zeros next hop &&
+     * is recursive path &&
+     * nexthop is same as the route's address
+     */
+    if ((!ip46_address_is_zero(&path->frp_addr)) &&
+        (~0 == path->frp_sw_if_index) &&
+        (0 == ip46_address_cmp(&path->frp_addr, &prefix->fp_addr)))
+    {
+        /* Prefix recurses via itse;f */
+	path->frp_flags |= FIB_ROUTE_PATH_DROP;
+    }
     if (fib_prefix_is_host(prefix) &&
 	ip46_address_is_zero(&path->frp_addr) &&
 	path->frp_sw_if_index != ~0)
@@ -484,7 +497,19 @@ fib_table_route_path_fixup (const fib_prefix_t *prefix,
 	path->frp_addr = prefix->fp_addr;
         path->frp_flags |= FIB_ROUTE_PATH_ATTACHED;
     }
-}		  
+    if (eflags & FIB_ENTRY_FLAG_DROP)
+    {
+	path->frp_flags |= FIB_ROUTE_PATH_DROP;
+    }
+    if (eflags & FIB_ENTRY_FLAG_LOCAL)
+    {
+	path->frp_flags |= FIB_ROUTE_PATH_LOCAL;
+    }
+    if (eflags & FIB_ENTRY_FLAG_EXCLUSIVE)
+    {
+	path->frp_flags |= FIB_ROUTE_PATH_EXCLUSIVE;
+    }
+}
 
 fib_node_index_t
 fib_table_entry_path_add (u32 fib_index,
@@ -536,7 +561,7 @@ fib_table_entry_path_add2 (u32 fib_index,
 
     for (ii = 0; ii < vec_len(rpath); ii++)
     {
-	fib_table_route_path_fixup(prefix, &rpath[ii]);
+	fib_table_route_path_fixup(prefix, flags, &rpath[ii]);
     }
 
     if (FIB_NODE_INDEX_INVALID == fib_entry_index)
@@ -583,11 +608,6 @@ fib_table_entry_path_remove2 (u32 fib_index,
     fib_table = fib_table_get(fib_index, prefix->fp_proto);
     fib_entry_index = fib_table_lookup_exact_match_i(fib_table, prefix);
 
-    for (ii = 0; ii < vec_len(rpath); ii++)
-    {
-	fib_table_route_path_fixup(prefix, &rpath[ii]);
-    }
-
     if (FIB_NODE_INDEX_INVALID == fib_entry_index)
     {
 	/*
@@ -605,6 +625,15 @@ fib_table_entry_path_remove2 (u32 fib_index,
 	fib_entry_lock(fib_entry_index);
         was_sourced = fib_entry_is_sourced(fib_entry_index, source);
 
+        for (ii = 0; ii < vec_len(rpath); ii++)
+        {
+            fib_table_route_path_fixup(
+                prefix,
+                fib_entry_get_flags_for_source(fib_entry_index,
+                                               source),
+                &rpath[ii]);
+        }
+
 	src_flag = fib_entry_path_remove(fib_entry_index, source, rpath);
 
 	if (!(FIB_ENTRY_SRC_FLAG_ADDED & src_flag))
@@ -661,7 +690,6 @@ fib_table_entry_path_remove (u32 fib_index,
     };
     fib_route_path_t *paths = NULL;
 
-    fib_table_route_path_fixup(prefix, &path);
     vec_add1(paths, path);
 
     fib_table_entry_path_remove2(fib_index, prefix, source, paths);
@@ -692,7 +720,7 @@ fib_table_entry_update (u32 fib_index,
 
     for (ii = 0; ii < vec_len(paths); ii++)
     {
-	fib_table_route_path_fixup(prefix, &paths[ii]);
+	fib_table_route_path_fixup(prefix, flags, &paths[ii]);
     }
     /*
      * sort the paths provided by the control plane. this means
@@ -750,7 +778,6 @@ fib_table_entry_update_one_path (u32 fib_index,
     };
     fib_route_path_t *paths = NULL;
 
-    fib_table_route_path_fixup(prefix, &path);
     vec_add1(paths, path);
 
     fib_entry_index = 
diff --git a/src/vnet/fib/fib_test.c b/src/vnet/fib/fib_test.c
index 3c9b8a38fe1..e4a8a70e0d0 100644
--- a/src/vnet/fib/fib_test.c
+++ b/src/vnet/fib/fib_test.c
@@ -25,6 +25,8 @@
 #include <vnet/dpo/receive_dpo.h>
 #include <vnet/dpo/ip_null_dpo.h>
 #include <vnet/bfd/bfd_main.h>
+#include <vnet/dpo/interface_dpo.h>
+#include <vnet/dpo/replicate_dpo.h>
 
 #include <vnet/mpls/mpls.h>
 
@@ -271,6 +273,7 @@ typedef enum fib_test_lb_bucket_type_t_ {
     FT_LB_O_LB,
     FT_LB_SPECIAL,
     FT_LB_ADJ,
+    FT_LB_INTF,
 } fib_test_lb_bucket_type_t;
 
 typedef struct fib_test_lb_bucket_t_ {
@@ -315,6 +318,31 @@ typedef struct fib_test_lb_bucket_t_ {
     };
 } fib_test_lb_bucket_t;
 
+typedef enum fib_test_rep_bucket_type_t_ {
+    FT_REP_LABEL_O_ADJ,
+    FT_REP_DISP_MFIB_LOOKUP,
+    FT_REP_INTF,
+} fib_test_rep_bucket_type_t;
+
+typedef struct fib_test_rep_bucket_t_ {
+    fib_test_rep_bucket_type_t type;
+
+    union
+    {
+	struct
+	{
+	    mpls_eos_bit_t eos;
+	    mpls_label_t label;
+	    u8 ttl;
+	    adj_index_t adj;
+	} label_o_adj;
+ 	struct
+	{
+	    adj_index_t adj;
+	} adj;
+   };
+} fib_test_rep_bucket_t;
+
 #define FIB_TEST_LB(_cond, _comment, _args...)			\
 {								\
     if (!FIB_TEST_I(_cond, _comment, ##_args)) {		\
@@ -322,7 +350,83 @@ typedef struct fib_test_lb_bucket_t_ {
     }								\
 }
 
-static int
+int
+fib_test_validate_rep_v (const replicate_t *rep,
+                         u16 n_buckets,
+                         va_list ap)
+{
+    const fib_test_rep_bucket_t *exp;
+    const dpo_id_t *dpo;
+    int bucket;
+
+    FIB_TEST_LB((n_buckets == rep->rep_n_buckets),
+                "n_buckets = %d", rep->rep_n_buckets);
+
+    for (bucket = 0; bucket < n_buckets; bucket++)
+    {
+	exp = va_arg(ap, fib_test_rep_bucket_t*);
+
+        dpo = replicate_get_bucket_i(rep, bucket);
+
+	switch (exp->type)
+	{
+	case FT_REP_LABEL_O_ADJ:
+	    {
+		const mpls_label_dpo_t *mld;
+                mpls_label_t hdr;
+		FIB_TEST_LB((DPO_MPLS_LABEL == dpo->dpoi_type),
+                            "bucket %d stacks on %U",
+                            bucket,
+                            format_dpo_type, dpo->dpoi_type);
+	    
+		mld = mpls_label_dpo_get(dpo->dpoi_index);
+                hdr = clib_net_to_host_u32(mld->mld_hdr[0].label_exp_s_ttl);
+
+		FIB_TEST_LB((vnet_mpls_uc_get_label(hdr) ==
+			     exp->label_o_adj.label),
+			    "bucket %d stacks on label %d",
+			    bucket,
+			    exp->label_o_adj.label);
+
+		FIB_TEST_LB((vnet_mpls_uc_get_s(hdr) ==
+			     exp->label_o_adj.eos),
+			    "bucket %d stacks on label %d %U",
+			    bucket,
+			    exp->label_o_adj.label,
+			    format_mpls_eos_bit, exp->label_o_adj.eos);
+
+		FIB_TEST_LB((DPO_ADJACENCY_INCOMPLETE == mld->mld_dpo.dpoi_type),
+			    "bucket %d label stacks on %U",
+			    bucket,
+			    format_dpo_type, mld->mld_dpo.dpoi_type);
+
+		FIB_TEST_LB((exp->label_o_adj.adj == mld->mld_dpo.dpoi_index),
+			    "bucket %d label stacks on adj %d",
+			    bucket,
+			    exp->label_o_adj.adj);
+	    }
+	    break;
+	case FT_REP_INTF:
+            FIB_TEST_LB((DPO_INTERFACE == dpo->dpoi_type),
+                        "bucket %d stacks on %U",
+                        bucket,
+                        format_dpo_type, dpo->dpoi_type);
+
+            FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+                        "bucket %d stacks on adj %d",
+                        bucket,
+                        exp->adj.adj);
+	    break;
+        case FT_REP_DISP_MFIB_LOOKUP:
+//            ASSERT(0);
+            break;
+        }
+    }
+
+    return (!0);
+}
+
+int
 fib_test_validate_lb_v (const load_balance_t *lb,
 			u16 n_buckets,
 			va_list ap)
@@ -484,6 +588,16 @@ fib_test_validate_lb_v (const load_balance_t *lb,
 			bucket,
 			exp->adj.adj);
 	    break;
+	case FT_LB_INTF:
+	    FIB_TEST_I((DPO_INTERFACE == dpo->dpoi_type),
+		       "bucket %d stacks on %U",
+		       bucket,
+		       format_dpo_type, dpo->dpoi_type);
+	    FIB_TEST_LB((exp->adj.adj == dpo->dpoi_index),
+			"bucket %d stacks on adj %d",
+			bucket,
+			exp->adj.adj);
+	    break;
 	case FT_LB_O_LB:
 	    FIB_TEST_I((DPO_LOAD_BALANCE == dpo->dpoi_type),
                        "bucket %d stacks on %U",
@@ -509,14 +623,13 @@ fib_test_validate_lb_v (const load_balance_t *lb,
     return (!0);
 }
 
-static int
+int
 fib_test_validate_entry (fib_node_index_t fei,
 			 fib_forward_chain_type_t fct,
 			 u16 n_buckets,
 			 ...)
 {
     dpo_id_t dpo = DPO_INVALID;
-    const load_balance_t *lb;
     fib_prefix_t pfx;
     index_t fw_lbi;
     u32 fib_index;
@@ -529,47 +642,59 @@ fib_test_validate_entry (fib_node_index_t fei,
     fib_index = fib_entry_get_fib_index(fei);
     fib_entry_contribute_forwarding(fei, fct, &dpo);
 
-    FIB_TEST_LB((DPO_LOAD_BALANCE == dpo.dpoi_type),
-		"Entry links to %U",
-		format_dpo_type, dpo.dpoi_type);
-    lb = load_balance_get(dpo.dpoi_index);
-
-    res = fib_test_validate_lb_v(lb, n_buckets, ap);
+    if (DPO_REPLICATE == dpo.dpoi_type)
+    {
+        const replicate_t *rep;
 
-    /*
-     * ensure that the LB contributed by the entry is the
-     * same as the LB in the forwarding tables
-     */
-    if (fct == fib_entry_get_default_chain_type(fib_entry_get(fei)))
+        rep = replicate_get(dpo.dpoi_index);
+        res = fib_test_validate_rep_v(rep, n_buckets, ap);
+    }
+    else
     {
-        switch (pfx.fp_proto)
-        {
-        case FIB_PROTOCOL_IP4:
-            fw_lbi = ip4_fib_forwarding_lookup(fib_index, &pfx.fp_addr.ip4);
-            break;
-        case FIB_PROTOCOL_IP6:
-            fw_lbi = ip6_fib_table_fwding_lookup(&ip6_main, fib_index, &pfx.fp_addr.ip6);
-            break;
-        case FIB_PROTOCOL_MPLS:
-            {
-                mpls_unicast_header_t hdr = {
-                    .label_exp_s_ttl = 0,
-                };
+        const load_balance_t *lb;
+
+        FIB_TEST_LB((DPO_LOAD_BALANCE == dpo.dpoi_type),
+                    "Entry links to %U",
+                    format_dpo_type, dpo.dpoi_type);
 
-                vnet_mpls_uc_set_label(&hdr.label_exp_s_ttl, pfx.fp_label);
-                vnet_mpls_uc_set_s(&hdr.label_exp_s_ttl, pfx.fp_eos);
-                hdr.label_exp_s_ttl = clib_host_to_net_u32(hdr.label_exp_s_ttl);
+        lb = load_balance_get(dpo.dpoi_index);
+        res = fib_test_validate_lb_v(lb, n_buckets, ap);
 
-                fw_lbi = mpls_fib_table_forwarding_lookup(fib_index, &hdr);
+        /*
+         * ensure that the LB contributed by the entry is the
+         * same as the LB in the forwarding tables
+         */
+        if (fct == fib_entry_get_default_chain_type(fib_entry_get(fei)))
+        {
+            switch (pfx.fp_proto)
+            {
+            case FIB_PROTOCOL_IP4:
+                fw_lbi = ip4_fib_forwarding_lookup(fib_index, &pfx.fp_addr.ip4);
+                break;
+            case FIB_PROTOCOL_IP6:
+                fw_lbi = ip6_fib_table_fwding_lookup(&ip6_main, fib_index, &pfx.fp_addr.ip6);
                 break;
+            case FIB_PROTOCOL_MPLS:
+                {
+                    mpls_unicast_header_t hdr = {
+                        .label_exp_s_ttl = 0,
+                    };
+
+                    vnet_mpls_uc_set_label(&hdr.label_exp_s_ttl, pfx.fp_label);
+                    vnet_mpls_uc_set_s(&hdr.label_exp_s_ttl, pfx.fp_eos);
+                    hdr.label_exp_s_ttl = clib_host_to_net_u32(hdr.label_exp_s_ttl);
+
+                    fw_lbi = mpls_fib_table_forwarding_lookup(fib_index, &hdr);
+                    break;
+                }
+            default:
+                fw_lbi = 0;
             }
-        default:
-            fw_lbi = 0;
+            FIB_TEST_LB((fw_lbi == dpo.dpoi_index),
+                        "Contributed LB = FW LB: %U\n %U",
+                        format_load_balance, fw_lbi, 0,
+                        format_load_balance, dpo.dpoi_index, 0);
         }
-        FIB_TEST_LB((fw_lbi == dpo.dpoi_index),
-                    "Contributed LB = FW LB: %U\n %U",
-                    format_load_balance, fw_lbi, 0,
-                    format_load_balance, dpo.dpoi_index, 0);
     }
 
     dpo_reset(&dpo);
@@ -1289,6 +1414,7 @@ fib_test_v4 (void)
 
     lookup_dpo_add_or_lock_w_fib_index(fib_index,
                                        DPO_PROTO_IP4,
+                                       LOOKUP_UNICAST,
                                        LOOKUP_INPUT_DST_ADDR,
                                        LOOKUP_TABLE_FROM_CONFIG,
                                        &ex_dpo);
@@ -2605,7 +2731,6 @@ fib_test_v4 (void)
 			     NULL,
 			     FIB_ROUTE_PATH_FLAG_NONE);
 
-
     fei = fib_table_lookup(fib_index, &pfx_5_5_5_6_s_32);
     dpo1 = fib_entry_contribute_ip_forwarding(fei);
 
@@ -7493,6 +7618,7 @@ lfib_test (void)
     fib_route_path_t *rpaths = NULL, rpath = {
     	.frp_proto = FIB_PROTOCOL_MPLS,
     	.frp_local_label = 1200,
+        .frp_eos = MPLS_NON_EOS,
     	.frp_sw_if_index = ~0, // recurive
     	.frp_fib_index = 0, // Default MPLS fib
     	.frp_weight = 1,
@@ -7608,6 +7734,146 @@ lfib_test (void)
     dpo_reset(&ip_1200);
 
     /*
+     * An rx-interface route.
+     *  like the tail of an mcast LSP
+     */
+    dpo_id_t idpo = DPO_INVALID;
+
+    interface_dpo_add_or_lock(DPO_PROTO_IP4,
+                              tm->hw[0]->sw_if_index,
+                              &idpo);
+
+    fib_prefix_t pfx_2500 = {
+	.fp_len = 21,
+	.fp_proto = FIB_PROTOCOL_MPLS,
+	.fp_label = 2500,
+	.fp_eos = MPLS_EOS,
+	.fp_payload_proto = DPO_PROTO_IP4,
+    };
+    fib_test_lb_bucket_t rx_intf_0 = {
+        .type = FT_LB_INTF,
+        .adj = {
+            .adj = idpo.dpoi_index,
+        },
+    };
+
+    lfe = fib_table_entry_update_one_path(fib_index,
+					  &pfx_2500,
+					  FIB_SOURCE_API,
+					  FIB_ENTRY_FLAG_NONE,
+					  FIB_PROTOCOL_IP4,
+					  NULL,
+					  tm->hw[0]->sw_if_index,
+					  ~0, // invalid fib index
+					  0,
+					  NULL,
+					  FIB_ROUTE_PATH_INTF_RX);
+    FIB_TEST(fib_test_validate_entry(lfe,
+    				     FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+    				     1,
+    				     &rx_intf_0),
+    	     "2500 rx-interface 0");
+    fib_table_entry_delete(fib_index, &pfx_2500, FIB_SOURCE_API);
+
+    /*
+     * An MPLS mulicast entry
+     */
+    fib_prefix_t pfx_3500 = {
+	.fp_len = 21,
+	.fp_proto = FIB_PROTOCOL_MPLS,
+	.fp_label = 3500,
+	.fp_eos = MPLS_EOS,
+	.fp_payload_proto = DPO_PROTO_IP4,
+    };
+    fib_test_rep_bucket_t mc_0 = {
+        .type = FT_REP_LABEL_O_ADJ,
+	.label_o_adj = {
+	    .adj = ai_mpls_10_10_10_1,
+	    .label = 3300,
+	    .eos = MPLS_EOS,
+	},
+    };
+    fib_test_rep_bucket_t mc_intf_0 = {
+        .type = FT_REP_INTF,
+        .adj = {
+            .adj = idpo.dpoi_index,
+        },
+    };
+    mpls_label_t *l3300 = NULL;
+    vec_add1(l3300, 3300);
+
+    lfe = fib_table_entry_update_one_path(lfib_index,
+					  &pfx_3500,
+					  FIB_SOURCE_API,
+					  FIB_ENTRY_FLAG_MULTICAST,
+					  FIB_PROTOCOL_IP4,
+					  &nh_10_10_10_1,
+					  tm->hw[0]->sw_if_index,
+					  ~0, // invalid fib index
+					  1,
+					  l3300,
+					  FIB_ROUTE_PATH_FLAG_NONE);
+    FIB_TEST(fib_test_validate_entry(lfe,
+    				     FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+    				     1,
+    				     &mc_0),
+    	     "3500 via replicate over 10.10.10.1");
+
+    /*
+     * MPLS Bud-node. Add a replication via an interface-receieve path
+     */
+    lfe = fib_table_entry_path_add(lfib_index,
+				   &pfx_3500,
+				   FIB_SOURCE_API,
+				   FIB_ENTRY_FLAG_MULTICAST,
+				   FIB_PROTOCOL_IP4,
+                                   NULL,
+                                   tm->hw[0]->sw_if_index,
+                                   ~0, // invalid fib index
+                                   0,
+                                   NULL,
+                                   FIB_ROUTE_PATH_INTF_RX);
+    FIB_TEST(fib_test_validate_entry(lfe,
+                                     FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+                                     2,
+                                     &mc_0,
+                                     &mc_intf_0),
+    	     "3500 via replicate over 10.10.10.1 and interface-rx");
+
+    /*
+     * Add a replication via an interface-free for-us path
+     */
+    fib_test_rep_bucket_t mc_disp = {
+        .type = FT_REP_DISP_MFIB_LOOKUP,
+        .adj = {
+            .adj = idpo.dpoi_index,
+        },
+    };
+    lfe = fib_table_entry_path_add(lfib_index,
+				   &pfx_3500,
+				   FIB_SOURCE_API,
+				   FIB_ENTRY_FLAG_MULTICAST,
+				   FIB_PROTOCOL_IP4,
+                                   NULL,
+                                   5, // rpf-id
+                                   0, // default table
+                                   0,
+                                   NULL,
+                                   FIB_ROUTE_PATH_RPF_ID);
+    FIB_TEST(fib_test_validate_entry(lfe,
+                                     FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+                                     3,
+                                     &mc_0,
+                                     &mc_disp,
+                                     &mc_intf_0),
+    	     "3500 via replicate over 10.10.10.1 and interface-rx");
+
+
+    
+    fib_table_entry_delete(fib_index, &pfx_3500, FIB_SOURCE_API);
+    dpo_reset(&idpo);
+
+    /*
      * cleanup
      */
     mpls_sw_interface_enable_disable(&mpls_main,
@@ -7617,6 +7883,9 @@ lfib_test (void)
     FIB_TEST(lb_count == pool_elts(load_balance_pool),
 	     "Load-balance resources freed %d of %d",
              lb_count, pool_elts(load_balance_pool));
+    FIB_TEST(0 == pool_elts(interface_dpo_pool),
+	     "interface_dpo resources freed %d of %d",
+             0, pool_elts(interface_dpo_pool));
 
     return (0);
 }
diff --git a/src/vnet/fib/fib_test.h b/src/vnet/fib/fib_test.h
new file mode 100644
index 00000000000..b98680bf683
--- /dev/null
+++ b/src/vnet/fib/fib_test.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __FIB_TEST_H__
+#define __FIB_TEST_H__
+
+#include <vnet/fib/fib_types.h>
+
+typedef enum fib_test_lb_bucket_type_t_ {
+    FT_LB_LABEL_O_ADJ,
+    FT_LB_LABEL_STACK_O_ADJ,
+    FT_LB_LABEL_O_LB,
+    FT_LB_O_LB,
+    FT_LB_SPECIAL,
+    FT_LB_ADJ,
+    FT_LB_INTF,
+} fib_test_lb_bucket_type_t;
+
+typedef struct fib_test_lb_bucket_t_ {
+    fib_test_lb_bucket_type_t type;
+
+    union
+    {
+	struct
+	{
+	    mpls_eos_bit_t eos;
+	    mpls_label_t label;
+	    u8 ttl;
+	    adj_index_t adj;
+	} label_o_adj;
+	struct
+	{
+	    mpls_eos_bit_t eos;
+	    mpls_label_t label_stack[8];
+	    u8 label_stack_size;
+	    u8 ttl;
+	    adj_index_t adj;
+	} label_stack_o_adj;
+	struct
+	{
+	    mpls_eos_bit_t eos;
+	    mpls_label_t label;
+	    u8 ttl;
+	    index_t lb;
+	} label_o_lb;
+	struct
+	{
+	    index_t adj;
+	} adj;
+	struct
+	{
+	    index_t lb;
+	} lb;
+	struct
+	{
+	    index_t adj;
+	} special;
+    };
+} fib_test_lb_bucket_t;
+
+typedef enum fib_test_rep_bucket_type_t_ {
+    FT_REP_LABEL_O_ADJ,
+    FT_REP_INTF,
+} fib_test_rep_bucket_type_t;
+
+typedef struct fib_test_rep_bucket_t_ {
+    fib_test_rep_bucket_type_t type;
+
+    union
+    {
+	struct
+	{
+	    mpls_eos_bit_t eos;
+	    mpls_label_t label;
+	    u8 ttl;
+	    adj_index_t adj;
+	} label_o_adj;
+ 	struct
+	{
+	    adj_index_t adj;
+	} adj;
+   };
+} fib_test_rep_bucket_t;
+
+
+extern int fib_test_validate_rep_v(const replicate_t *rep,
+                                   u16 n_buckets,
+                                   va_list ap);
+
+extern int fib_test_validate_lb_v(const load_balance_t *lb,
+                                  u16 n_buckets,
+                                  va_list ap);
+
+extern int fib_test_validate_entry(fib_node_index_t fei,
+                                   fib_forward_chain_type_t fct,
+                                   u16 n_buckets,
+                                   ...);
+
+#endif
diff --git a/src/vnet/fib/fib_types.c b/src/vnet/fib/fib_types.c
index 2837a59db01..8165f3eb313 100644
--- a/src/vnet/fib/fib_types.c
+++ b/src/vnet/fib/fib_types.c
@@ -66,12 +66,13 @@ fib_prefix_from_ip46_addr (const ip46_address_t *addr,
 
 void
 fib_prefix_from_mpls_label (mpls_label_t label,
+                            mpls_eos_bit_t eos,
 			    fib_prefix_t *pfx)
 {
     pfx->fp_proto = FIB_PROTOCOL_MPLS;
     pfx->fp_len = 21;
     pfx->fp_label = label;
-    pfx->fp_eos = MPLS_NON_EOS;
+    pfx->fp_eos = eos;
 }
 
 int
@@ -194,17 +195,7 @@ fib_route_path_cmp (const fib_route_path_t *rpath1,
 
     if (0 != res) return (res);
 
-    if (~0 != rpath1->frp_sw_if_index &&
-        ~0 != rpath2->frp_sw_if_index)
-    {
-        res = vnet_sw_interface_compare(vnet_get_main(),
-                                        rpath1->frp_sw_if_index,
-                                        rpath2->frp_sw_if_index);
-    }
-    else
-    {
-        res = rpath1->frp_sw_if_index - rpath2->frp_sw_if_index;
-    }
+    res = (rpath1->frp_sw_if_index - rpath2->frp_sw_if_index);
 
     if (0 != res) return (res);
 
diff --git a/src/vnet/fib/fib_types.h b/src/vnet/fib/fib_types.h
index 1c5299a9214..4cb73e8a7a6 100644
--- a/src/vnet/fib/fib_types.h
+++ b/src/vnet/fib/fib_types.h
@@ -286,9 +286,37 @@ typedef enum fib_route_path_flags_t_
      * Attached path
      */
     FIB_ROUTE_PATH_ATTACHED = (1 << 3),
+    /**
+     * A Drop path - resolve the path on the drop DPO
+     */
+    FIB_ROUTE_PATH_DROP = (1 << 4),
+    /**
+     * Don't resolve the path, use the DPO the client provides
+     */
+    FIB_ROUTE_PATH_EXCLUSIVE = (1 << 5),
+    /**
+     * A path that result in received traffic being recieved/recirculated
+     * so that it appears to have arrived on the new interface
+     */
+    FIB_ROUTE_PATH_INTF_RX = (1 << 6),
+    /**
+     * A local path with a RPF-ID => multicast traffic
+     */
+    FIB_ROUTE_PATH_RPF_ID = (1 << 7),
 } fib_route_path_flags_t;
 
 /**
+ * An RPF-ID is numerical value that is used RPF validate. An entry
+ * has-a RPF-ID, when a packet egress from (e.g. an LSP) it gains an
+ * RPF-ID, these two are compared for the RPF check.
+ * This replaces the interfce based chack (since the LSP has no associated
+ * interface.
+ */
+typedef u32 fib_rpf_id_t;
+
+#define MFIB_RPF_ID_NONE (0)
+
+/**
  * @brief 
  * A representation of a path as described by a route producer.
  * These paramenters will determine the path 'type', of which there are:
@@ -321,17 +349,29 @@ typedef struct fib_route_path_t_ {
 	 */
 	ip46_address_t frp_addr;
 
-	/**
-	 * The MPLS local Label to reursively resolve through.
-	 * This is valid when the path type is MPLS.
-	 */
-	mpls_label_t frp_local_label;
+        struct {
+            /**
+             * The MPLS local Label to reursively resolve through.
+             * This is valid when the path type is MPLS.
+             */
+            mpls_label_t frp_local_label;
+            /**
+             * EOS bit for the resolving label
+             */
+            mpls_eos_bit_t frp_eos;
+        };
+    };
+    union {
+        /**
+         * The interface.
+         * Will be invalid for recursive paths.
+         */
+        u32 frp_sw_if_index;
+        /**
+         * The RPF-ID
+         */
+        fib_rpf_id_t frp_rpf_id;
     };
-    /**
-     * The interface.
-     * Will be invalid for recursive paths.
-     */
-    u32 frp_sw_if_index;
     /**
      * The FIB index to lookup the nexthop
      * Only valid for recursive paths.
diff --git a/src/vnet/fib/mpls_fib.c b/src/vnet/fib/mpls_fib.c
index 4b2b76ea154..19f9f3c1432 100644
--- a/src/vnet/fib/mpls_fib.c
+++ b/src/vnet/fib/mpls_fib.c
@@ -165,6 +165,7 @@ mpls_fib_create_with_table_id (u32 table_id)
 
     lookup_dpo_add_or_lock_w_fib_index(0, // unused
                                        DPO_PROTO_IP4,
+                                       LOOKUP_UNICAST,
                                        LOOKUP_INPUT_DST_ADDR,
                                        LOOKUP_TABLE_FROM_INPUT_INTERFACE,
                                        &dpo);
@@ -179,6 +180,7 @@ mpls_fib_create_with_table_id (u32 table_id)
 
     lookup_dpo_add_or_lock_w_fib_index(0, //unsued
                                        DPO_PROTO_MPLS,
+                                       LOOKUP_UNICAST,
                                        LOOKUP_INPUT_DST_ADDR,
                                        LOOKUP_TABLE_FROM_INPUT_INTERFACE,
                                        &dpo);
@@ -197,6 +199,7 @@ mpls_fib_create_with_table_id (u32 table_id)
 
     lookup_dpo_add_or_lock_w_fib_index(0, //unused
                                        DPO_PROTO_IP6,
+                                       LOOKUP_UNICAST,
                                        LOOKUP_INPUT_DST_ADDR,
                                        LOOKUP_TABLE_FROM_INPUT_INTERFACE,
                                        &dpo);
@@ -210,6 +213,7 @@ mpls_fib_create_with_table_id (u32 table_id)
     prefix.fp_eos = MPLS_NON_EOS;
     lookup_dpo_add_or_lock_w_fib_index(0, // unsued
                                        DPO_PROTO_MPLS,
+                                       LOOKUP_UNICAST,
                                        LOOKUP_INPUT_DST_ADDR,
                                        LOOKUP_TABLE_FROM_INPUT_INTERFACE,
                                        &dpo);
@@ -320,8 +324,15 @@ mpls_fib_forwarding_table_update (mpls_fib_t *mf,
 {
     mpls_label_t key;
 
-    ASSERT(DPO_LOAD_BALANCE == dpo->dpoi_type);
-
+    ASSERT((DPO_LOAD_BALANCE == dpo->dpoi_type) ||
+           (DPO_REPLICATE == dpo->dpoi_type));
+    if (CLIB_DEBUG > 0)
+    {
+        if (DPO_REPLICATE == dpo->dpoi_type)
+            ASSERT(dpo->dpoi_index & MPLS_IS_REPLICATE);
+        if (DPO_LOAD_BALANCE == dpo->dpoi_type)
+            ASSERT(!(dpo->dpoi_index & MPLS_IS_REPLICATE));
+    }
     key = mpls_fib_entry_mk_key(label, eos);
 
     mf->mf_lbs[key] = dpo->dpoi_index;
diff --git a/src/vnet/handoff.h b/src/vnet/handoff.h
index 815206a9f8c..04ba8bfbc02 100644
--- a/src/vnet/handoff.h
+++ b/src/vnet/handoff.h
@@ -150,7 +150,7 @@ eth_get_sym_key (ethernet_header_t * h0)
 			ip->dst_address.as_u64[0] ^
 			ip->dst_address.as_u64[1] ^ ip->protocol);
     }
-  else if (h0->type == clib_host_to_net_u16 (ETHERNET_TYPE_MPLS_UNICAST))
+  else if (h0->type == clib_host_to_net_u16 (ETHERNET_TYPE_MPLS))
     {
       hash_key = mpls_get_key ((mpls_unicast_header_t *) (h0 + 1));
     }
@@ -179,8 +179,7 @@ eth_get_sym_key (ethernet_header_t * h0)
 		   ip->dst_address.as_u64[0] ^
 		   ip->dst_address.as_u64[1] ^ ip->protocol);
 	}
-      else if (outer->type ==
-	       clib_host_to_net_u16 (ETHERNET_TYPE_MPLS_UNICAST))
+      else if (outer->type == clib_host_to_net_u16 (ETHERNET_TYPE_MPLS))
 	{
 	  hash_key = mpls_get_key ((mpls_unicast_header_t *) (outer + 1));
 	}
@@ -210,7 +209,7 @@ eth_get_key (ethernet_header_t * h0)
     {
       hash_key = ipv6_get_key ((ip6_header_t *) (h0 + 1));
     }
-  else if (h0->type == clib_host_to_net_u16 (ETHERNET_TYPE_MPLS_UNICAST))
+  else if (h0->type == clib_host_to_net_u16 (ETHERNET_TYPE_MPLS))
     {
       hash_key = mpls_get_key ((mpls_unicast_header_t *) (h0 + 1));
     }
@@ -230,8 +229,7 @@ eth_get_key (ethernet_header_t * h0)
 	{
 	  hash_key = ipv6_get_key ((ip6_header_t *) (outer + 1));
 	}
-      else if (outer->type ==
-	       clib_host_to_net_u16 (ETHERNET_TYPE_MPLS_UNICAST))
+      else if (outer->type == clib_host_to_net_u16 (ETHERNET_TYPE_MPLS))
 	{
 	  hash_key = mpls_get_key ((mpls_unicast_header_t *) (outer + 1));
 	}
diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index 2a1e70e8927..45417b2f5c0 100644
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -1360,7 +1360,7 @@ vnet_link_to_l3_proto (vnet_link_t link)
     case VNET_LINK_IP6:
       return (VNET_L3_PACKET_TYPE_IP6);
     case VNET_LINK_MPLS:
-      return (VNET_L3_PACKET_TYPE_MPLS_UNICAST);
+      return (VNET_L3_PACKET_TYPE_MPLS);
     case VNET_LINK_ARP:
       return (VNET_L3_PACKET_TYPE_ARP);
     case VNET_LINK_ETHERNET:
diff --git a/src/vnet/ip/ip.api b/src/vnet/ip/ip.api
index 5c2df32cfd0..6af1714f34d 100644
--- a/src/vnet/ip/ip.api
+++ b/src/vnet/ip/ip.api
@@ -478,6 +478,7 @@ define ip_mroute_add_del
   u32 table_id;
   u32 entry_flags;
   u32 itf_flags;
+  u32 rpf_id;
   u16 grp_address_length;
   u8 create_vrf_if_needed;
   u8 is_add;
@@ -518,6 +519,8 @@ manual_endian manual_print define ip_mfib_details
 {
   u32 context;
   u32 table_id;
+  u32 entry_flags;
+  u32 rpf_id;
   u8  address_length;
   u8  grp_address[4];
   u8  src_address[4];
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index fdfe7f63dfc..9fdf9b3cee1 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -2752,6 +2752,16 @@ ip4_rewrite_mcast (vlib_main_t * vm,
     return ip4_rewrite_inline (vm, node, frame, 0, 0, 1);
 }
 
+static uword
+ip4_mcast_midchain (vlib_main_t * vm,
+		    vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+  if (adj_are_counters_enabled ())
+    return ip4_rewrite_inline (vm, node, frame, 1, 1, 1);
+  else
+    return ip4_rewrite_inline (vm, node, frame, 0, 1, 1);
+}
+
 /* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip4_rewrite_node) = {
   .function = ip4_rewrite,
@@ -2778,6 +2788,16 @@ VLIB_REGISTER_NODE (ip4_rewrite_mcast_node) = {
 };
 VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_mcast_node, ip4_rewrite_mcast)
 
+VLIB_REGISTER_NODE (ip4_mcast_midchain_node, static) = {
+  .function = ip4_mcast_midchain,
+  .name = "ip4-mcast-midchain",
+  .vector_size = sizeof (u32),
+
+  .format_trace = format_ip4_rewrite_trace,
+  .sibling_of = "ip4-rewrite",
+};
+VLIB_NODE_FUNCTION_MULTIARCH (ip4_mcast_midchain_node, ip4_mcast_midchain)
+
 VLIB_REGISTER_NODE (ip4_midchain_node) = {
   .function = ip4_midchain,
   .name = "ip4-midchain",
diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c
index c2fc4f873f2..a369f79fbb8 100644
--- a/src/vnet/ip/ip6_forward.c
+++ b/src/vnet/ip/ip6_forward.c
@@ -2246,6 +2246,16 @@ ip6_midchain (vlib_main_t * vm,
     return ip6_rewrite_inline (vm, node, frame, 0, 1, 0);
 }
 
+static uword
+ip6_mcast_midchain (vlib_main_t * vm,
+		    vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+  if (adj_are_counters_enabled ())
+    return ip6_rewrite_inline (vm, node, frame, 1, 1, 1);
+  else
+    return ip6_rewrite_inline (vm, node, frame, 1, 1, 1);
+}
+
 /* *INDENT-OFF* */
 VLIB_REGISTER_NODE (ip6_midchain_node) =
 {
@@ -2290,6 +2300,19 @@ VLIB_REGISTER_NODE (ip6_rewrite_mcast_node) =
 
 VLIB_NODE_FUNCTION_MULTIARCH (ip6_rewrite_mcast_node, ip6_rewrite_mcast);
 
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip6_mcast_midchain_node, static) =
+{
+  .function = ip6_mcast_midchain,
+  .name = "ip6-mcast-midchain",
+  .vector_size = sizeof (u32),
+  .format_trace = format_ip6_rewrite_trace,
+  .sibling_of = "ip6-rewrite",
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_mcast_midchain_node, ip6_mcast_midchain);
+
 /*
  * Hop-by-Hop handling
  */
diff --git a/src/vnet/ip/ip6_neighbor.c b/src/vnet/ip/ip6_neighbor.c
index 2af546df8de..58b997aa0db 100644
--- a/src/vnet/ip/ip6_neighbor.c
+++ b/src/vnet/ip/ip6_neighbor.c
@@ -557,6 +557,7 @@ ip6_ethernet_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
     case IP_LOOKUP_NEXT_PUNT:
     case IP_LOOKUP_NEXT_LOCAL:
     case IP_LOOKUP_NEXT_REWRITE:
+    case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
     case IP_LOOKUP_NEXT_MIDCHAIN:
     case IP_LOOKUP_NEXT_ICMP_ERROR:
     case IP_LOOKUP_N_NEXT:
diff --git a/src/vnet/ip/ip_api.c b/src/vnet/ip/ip_api.c
index b9f1782b342..9c9cb4a445a 100644
--- a/src/vnet/ip/ip_api.c
+++ b/src/vnet/ip/ip_api.c
@@ -438,17 +438,20 @@ vl_api_ip6_fib_dump_t_handler (vl_api_ip6_fib_dump_t * mp)
 }
 
 static void
-send_ip_mfib_details (vpe_api_main_t * am,
-		      unix_shared_memory_queue_t * q,
-		      u32 table_id,
-		      mfib_prefix_t * pfx,
-		      fib_route_path_encode_t * api_rpaths, u32 context)
+send_ip_mfib_details (unix_shared_memory_queue_t * q,
+		      u32 context, u32 table_id, fib_node_index_t mfei)
 {
+  fib_route_path_encode_t *api_rpath, *api_rpaths = NULL;
   vl_api_ip_mfib_details_t *mp;
-  fib_route_path_encode_t *api_rpath;
+  mfib_entry_t *mfib_entry;
   vl_api_fib_path_t *fp;
+  mfib_prefix_t pfx;
   int path_count;
 
+  mfib_entry = mfib_entry_get (mfei);
+  mfib_entry_get_prefix (mfei, &pfx);
+  mfib_entry_encode (mfei, &api_rpaths);
+
   path_count = vec_len (api_rpaths);
   mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
   if (!mp)
@@ -457,12 +460,14 @@ send_ip_mfib_details (vpe_api_main_t * am,
   mp->_vl_msg_id = ntohs (VL_API_IP_FIB_DETAILS);
   mp->context = context;
 
+  mp->rpf_id = mfib_entry->mfe_rpf_id;
+  mp->entry_flags = mfib_entry->mfe_flags;
   mp->table_id = htonl (table_id);
-  mp->address_length = pfx->fp_len;
-  memcpy (mp->grp_address, &pfx->fp_grp_addr.ip4,
-	  sizeof (pfx->fp_grp_addr.ip4));
-  memcpy (mp->src_address, &pfx->fp_src_addr.ip4,
-	  sizeof (pfx->fp_src_addr.ip4));
+  mp->address_length = pfx.fp_len;
+  memcpy (mp->grp_address, &pfx.fp_grp_addr.ip4,
+	  sizeof (pfx.fp_grp_addr.ip4));
+  memcpy (mp->src_address, &pfx.fp_src_addr.ip4,
+	  sizeof (pfx.fp_src_addr.ip4));
 
   mp->count = htonl (path_count);
   fp = mp->path;
@@ -475,6 +480,7 @@ send_ip_mfib_details (vpe_api_main_t * am,
     copy_fib_next_hop (api_rpath, fp);
     fp++;
   }
+  vec_free (api_rpaths);
 
   vl_msg_api_send_shmem (q, (u8 *) & mp);
 }
@@ -497,13 +503,10 @@ vl_api_ip_mfib_table_dump_walk (fib_node_index_t fei, void *arg)
 static void
 vl_api_ip_mfib_dump_t_handler (vl_api_ip_mfib_dump_t * mp)
 {
-  vpe_api_main_t *am = &vpe_api_main;
   unix_shared_memory_queue_t *q;
   ip4_main_t *im = &ip4_main;
   mfib_table_t *mfib_table;
   fib_node_index_t *mfeip;
-  mfib_prefix_t pfx;
-  fib_route_path_encode_t *api_rpaths = NULL;
   vl_api_ip_mfib_dump_ctc_t ctx = {
     .entries = NULL,
   };
@@ -524,21 +527,16 @@ vl_api_ip_mfib_dump_t_handler (vl_api_ip_mfib_dump_t * mp)
 
     vec_foreach (mfeip, ctx.entries)
     {
-      mfib_entry_get_prefix (*mfeip, &pfx);
-      mfib_entry_encode (*mfeip, &api_rpaths);
-      send_ip_mfib_details (am, q,
+      send_ip_mfib_details (q, mp->context,
                             mfib_table->mft_table_id,
-                            &pfx, api_rpaths,
-                            mp->context);
+                            *mfeip);
     }
-    vec_reset_length (api_rpaths);
     vec_reset_length (ctx.entries);
 
   }));
   /* *INDENT-ON* */
 
   vec_free (ctx.entries);
-  vec_free (api_rpaths);
 }
 
 static void
@@ -705,10 +703,13 @@ add_del_route_t_handler (u8 is_multipath,
 			 u8 is_unreach,
 			 u8 is_prohibit,
 			 u8 is_local,
+			 u8 is_multicast,
 			 u8 is_classify,
 			 u32 classify_table_index,
 			 u8 is_resolve_host,
 			 u8 is_resolve_attached,
+			 u8 is_interface_rx,
+			 u8 is_rpf_id,
 			 u32 fib_index,
 			 const fib_prefix_t * prefix,
 			 u8 next_hop_proto_is_ip4,
@@ -731,16 +732,24 @@ add_del_route_t_handler (u8 is_multipath,
     .frp_label_stack = next_hop_out_label_stack,
   };
   fib_route_path_t *paths = NULL;
+  fib_entry_flag_t entry_flags = FIB_ENTRY_FLAG_NONE;
 
   if (MPLS_LABEL_INVALID != next_hop_via_label)
     {
       path.frp_proto = FIB_PROTOCOL_MPLS;
       path.frp_local_label = next_hop_via_label;
+      path.frp_eos = MPLS_NON_EOS;
     }
   if (is_resolve_host)
     path_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_HOST;
   if (is_resolve_attached)
     path_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_ATTACHED;
+  if (is_interface_rx)
+    path_flags |= FIB_ROUTE_PATH_INTF_RX;
+  if (is_rpf_id)
+    path_flags |= FIB_ROUTE_PATH_RPF_ID;
+  if (is_multicast)
+    entry_flags |= FIB_ENTRY_FLAG_MULTICAST;
 
   path.frp_flags = path_flags;
 
@@ -754,8 +763,7 @@ add_del_route_t_handler (u8 is_multipath,
       if (is_add)
 	fib_table_entry_path_add2 (fib_index,
 				   prefix,
-				   FIB_SOURCE_API,
-				   FIB_ENTRY_FLAG_NONE, paths);
+				   FIB_SOURCE_API, entry_flags, paths);
       else
 	fib_table_entry_path_remove2 (fib_index,
 				      prefix, FIB_SOURCE_API, paths);
@@ -826,8 +834,7 @@ add_del_route_t_handler (u8 is_multipath,
 	{
 	  vec_add1 (paths, path);
 	  fib_table_entry_update (fib_index,
-				  prefix,
-				  FIB_SOURCE_API, FIB_ENTRY_FLAG_NONE, paths);
+				  prefix, FIB_SOURCE_API, entry_flags, paths);
 	  vec_free (paths);
 	}
       else
@@ -847,7 +854,7 @@ add_del_route_check (fib_protocol_t table_proto,
 		     fib_protocol_t next_hop_table_proto,
 		     u32 next_hop_table_id,
 		     u8 create_missing_tables,
-		     u32 * fib_index, u32 * next_hop_fib_index)
+		     u8 is_rpf_id, u32 * fib_index, u32 * next_hop_fib_index)
 {
   vnet_main_t *vnm = vnet_get_main ();
 
@@ -866,7 +873,7 @@ add_del_route_check (fib_protocol_t table_proto,
 	}
     }
 
-  if (~0 != ntohl (next_hop_sw_if_index))
+  if (!is_rpf_id && ~0 != ntohl (next_hop_sw_if_index))
     {
       if (pool_is_free_index (vnm->interface_main.sw_interfaces,
 			      ntohl (next_hop_sw_if_index)))
@@ -876,16 +883,27 @@ add_del_route_check (fib_protocol_t table_proto,
     }
   else
     {
-      *next_hop_fib_index = fib_table_find (next_hop_table_proto,
-					    ntohl (next_hop_table_id));
+      if (is_rpf_id)
+	*next_hop_fib_index = mfib_table_find (next_hop_table_proto,
+					       ntohl (next_hop_table_id));
+      else
+	*next_hop_fib_index = fib_table_find (next_hop_table_proto,
+					      ntohl (next_hop_table_id));
 
       if (~0 == *next_hop_fib_index)
 	{
 	  if (create_missing_tables)
 	    {
-	      *next_hop_fib_index =
-		fib_table_find_or_create_and_lock (next_hop_table_proto,
-						   ntohl (next_hop_table_id));
+	      if (is_rpf_id)
+		*next_hop_fib_index =
+		  mfib_table_find_or_create_and_lock (next_hop_table_proto,
+						      ntohl
+						      (next_hop_table_id));
+	      else
+		*next_hop_fib_index =
+		  fib_table_find_or_create_and_lock (next_hop_table_proto,
+						     ntohl
+						     (next_hop_table_id));
 	    }
 	  else
 	    {
@@ -910,7 +928,7 @@ ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
 			    mp->next_hop_sw_if_index,
 			    FIB_PROTOCOL_IP4,
 			    mp->next_hop_table_id,
-			    mp->create_vrf_if_needed,
+			    mp->create_vrf_if_needed, 0,
 			    &fib_index, &next_hop_fib_index);
 
   if (0 != rv)
@@ -943,11 +961,11 @@ ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
 				   mp->is_drop,
 				   mp->is_unreach,
 				   mp->is_prohibit,
-				   mp->is_local,
+				   mp->is_local, 0,
 				   mp->is_classify,
 				   mp->classify_table_index,
 				   mp->is_resolve_host,
-				   mp->is_resolve_attached,
+				   mp->is_resolve_attached, 0, 0,
 				   fib_index, &pfx, 1,
 				   &nh,
 				   ntohl (mp->next_hop_sw_if_index),
@@ -969,7 +987,7 @@ ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
 			    mp->next_hop_sw_if_index,
 			    FIB_PROTOCOL_IP6,
 			    mp->next_hop_table_id,
-			    mp->create_vrf_if_needed,
+			    mp->create_vrf_if_needed, 0,
 			    &fib_index, &next_hop_fib_index);
 
   if (0 != rv)
@@ -1002,11 +1020,11 @@ ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
 				   mp->is_drop,
 				   mp->is_unreach,
 				   mp->is_prohibit,
-				   mp->is_local,
+				   mp->is_local, 0,
 				   mp->is_classify,
 				   mp->classify_table_index,
 				   mp->is_resolve_host,
-				   mp->is_resolve_attached,
+				   mp->is_resolve_attached, 0, 0,
 				   fib_index, &pfx, 0,
 				   &nh, ntohl (mp->next_hop_sw_if_index),
 				   next_hop_fib_index,
@@ -1075,6 +1093,7 @@ mroute_add_del_handler (u8 is_add,
 			u32 fib_index,
 			const mfib_prefix_t * prefix,
 			u32 entry_flags,
+			fib_rpf_id_t rpf_id,
 			u32 next_hop_sw_if_index, u32 itf_flags)
 {
   stats_dslock_with_hint (1 /* release hint */ , 2 /* tag */ );
@@ -1091,7 +1110,7 @@ mroute_add_del_handler (u8 is_add,
   if (!is_local && ~0 == next_hop_sw_if_index)
     {
       mfib_table_entry_update (fib_index, prefix,
-			       MFIB_SOURCE_API, entry_flags);
+			       MFIB_SOURCE_API, rpf_id, entry_flags);
     }
   else
     {
@@ -1152,6 +1171,7 @@ api_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
 				  mp->is_local,
 				  fib_index, &pfx,
 				  ntohl (mp->entry_flags),
+				  ntohl (mp->rpf_id),
 				  ntohl (mp->next_hop_sw_if_index),
 				  ntohl (mp->itf_flags)));
 }
diff --git a/src/vnet/ip/lookup.c b/src/vnet/ip/lookup.c
index ec9a1f97ac9..597de06b5e3 100755
--- a/src/vnet/ip/lookup.c
+++ b/src/vnet/ip/lookup.c
@@ -450,6 +450,7 @@ vnet_ip_route_cmd (vlib_main_t * vm,
 			 unformat_mpls_unicast_label, &rpath.frp_local_label))
 	{
 	  rpath.frp_weight = 1;
+	  rpath.frp_eos = MPLS_NON_EOS;
 	  rpath.frp_proto = FIB_PROTOCOL_MPLS;
 	  rpath.frp_sw_if_index = ~0;
 	  vec_add1 (rpaths, rpath);
@@ -923,7 +924,7 @@ vnet_ip_mroute_cmd (vlib_main_t * vm,
 	  else if (eflags)
 	    {
 	      mfib_table_entry_update (fib_index, &pfx, MFIB_SOURCE_CLI,
-				       eflags);
+				       MFIB_RPF_ID_NONE, eflags);
 	    }
 	  else
 	    {
diff --git a/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c b/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c
index efa724e0d5b..d2954e9649a 100644
--- a/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c
+++ b/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c
@@ -88,6 +88,7 @@ ip_dst_fib_add_route (u32 dst_fib_index, const ip_prefix_t * dst_prefix)
 					  (ip_prefix_version (dst_prefix) ==
 					   IP6 ? DPO_PROTO_IP6 :
 					   DPO_PROTO_IP4),
+					  LOOKUP_UNICAST,
 					  LOOKUP_INPUT_SRC_ADDR,
 					  LOOKUP_TABLE_FROM_CONFIG,
 					  &src_lkup_dpo);
diff --git a/src/vnet/mfib/ip4_mfib.c b/src/vnet/mfib/ip4_mfib.c
index 164cafa118b..3ed7cba7b6f 100644
--- a/src/vnet/mfib/ip4_mfib.c
+++ b/src/vnet/mfib/ip4_mfib.c
@@ -72,6 +72,7 @@ ip4_create_mfib_with_table_id (u32 table_id)
         mfib_table_entry_update(mfib_table->mft_index,
                                 &prefix,
                                 MFIB_SOURCE_DEFAULT_ROUTE,
+                                MFIB_RPF_ID_NONE,
                                 MFIB_ENTRY_FLAG_DROP);
     }
 
diff --git a/src/vnet/mfib/ip6_mfib.c b/src/vnet/mfib/ip6_mfib.c
index 991b91c6498..116fee2222a 100644
--- a/src/vnet/mfib/ip6_mfib.c
+++ b/src/vnet/mfib/ip6_mfib.c
@@ -195,6 +195,7 @@ ip6_create_mfib_with_table_id (u32 table_id)
     mfib_table_entry_update(mfib_table->mft_index,
                             &all_zeros,
                             MFIB_SOURCE_DEFAULT_ROUTE,
+                            MFIB_RPF_ID_NONE,
                             MFIB_ENTRY_FLAG_DROP);
 
     /*
diff --git a/src/vnet/mfib/mfib_entry.c b/src/vnet/mfib/mfib_entry.c
index 1aa8e0864ca..847f25e7f1f 100644
--- a/src/vnet/mfib/mfib_entry.c
+++ b/src/vnet/mfib/mfib_entry.c
@@ -49,6 +49,15 @@
 #endif
 
 /**
+ * MFIB extensions to each path
+ */
+typedef struct mfib_path_ext_t_
+{
+    mfib_itf_flags_t mfpe_flags;
+    fib_node_index_t mfpe_path;
+} mfib_path_ext_t;
+
+/**
  * The source of an MFIB entry
  */
 typedef struct mfib_entry_src_t_
@@ -59,22 +68,39 @@ typedef struct mfib_entry_src_t_
     mfib_source_t mfes_src;
 
     /**
+     * Route flags
+     */
+    mfib_entry_flags_t mfes_flags;
+
+    /**
      * The path-list of forwarding interfaces
      */
     fib_node_index_t mfes_pl;
 
     /**
-     * Route flags
+     * RPF-ID
      */
-    mfib_entry_flags_t mfes_flags;
+    fib_rpf_id_t mfes_rpf_id;
+
+    /**
+     * Hash table of path extensions
+     */
+    mfib_path_ext_t *mfes_exts;
 
     /**
-     * The hash table of all interfaces
+     * The hash table of all interfaces.
+     *  This is forwarding time information derived from the paths
+     *  and their extensions.
      */
     mfib_itf_t *mfes_itfs;
 } mfib_entry_src_t;
 
 /**
+ * Pool of path extensions
+ */
+static mfib_path_ext_t *mfib_path_ext_pool;
+
+/**
  * String names for each source
  */
 static const char *mfib_source_names[] = MFIB_SOURCE_NAMES;
@@ -123,6 +149,24 @@ format_mfib_entry_dpo (u8 * s, va_list * args)
                    MFIB_ENTRY_FORMAT_BRIEF));
 }
 
+static inline mfib_path_ext_t *
+mfib_entry_path_ext_get (index_t mi)
+{
+    return (pool_elt_at_index(mfib_path_ext_pool, mi));
+}
+
+static u8 *
+format_mfib_entry_path_ext (u8 * s, va_list * args)
+{
+    mfib_path_ext_t *path_ext;
+    index_t mpi = va_arg(*args, index_t);
+
+    path_ext = mfib_entry_path_ext_get(mpi);
+    return (format(s, "path:%d flags:%U",
+                   path_ext->mfpe_path,
+                   format_mfib_itf_flags, path_ext->mfpe_flags));
+}
+
 u8 *
 format_mfib_entry (u8 * s, va_list * args)
 {
@@ -141,6 +185,8 @@ format_mfib_entry (u8 * s, va_list * args)
 
     if (level >= MFIB_ENTRY_FORMAT_DETAIL)
     {
+        fib_node_index_t path_index, mpi;
+
         s = format (s, "\n");
         s = format (s, " fib:%d", mfib_entry->mfe_fib_index);
         s = format (s, " index:%d", mfib_entry_get_index(mfib_entry));
@@ -153,6 +199,14 @@ format_mfib_entry (u8 * s, va_list * args)
             {
                 s = fib_path_list_format(msrc->mfes_pl, s);
             }
+            s = format (s, "    Extensions:\n",
+                        mfib_source_names[msrc->mfes_src]);
+            hash_foreach(path_index, mpi, msrc->mfes_exts,
+            ({
+                s = format(s, "     %U\n", format_mfib_entry_path_ext, mpi);
+            }));
+            s = format (s, "    Interface-Forwarding:\n",
+                        mfib_source_names[msrc->mfes_src]);
             hash_foreach(sw_if_index, mfi, msrc->mfes_itfs,
             ({
                 s = format(s, "    %U\n", format_mfib_itf, mfi);
@@ -165,7 +219,7 @@ format_mfib_entry (u8 * s, va_list * args)
     ({
         s = format(s, "\n  %U", format_mfib_itf, mfi);
     }));
-
+    s = format(s, "\n  RPF-ID:%d", mfib_entry->mfe_rpf_id);
     s = format(s, "\n  %U-chain\n  %U",
                format_fib_forw_chain_type,
                mfib_entry_get_default_chain_type(mfib_entry),
@@ -314,13 +368,6 @@ mfib_entry_src_remove (mfib_entry_t *mfib_entry,
     }
 }
 
-static int
-mfib_entry_src_n_itfs (const mfib_entry_src_t *msrc)
-{
-    return (hash_elts(msrc->mfes_itfs));
-}
-
-
 static void
 mfib_entry_last_lock_gone (fib_node_t *node)
 {
@@ -338,7 +385,6 @@ mfib_entry_last_lock_gone (fib_node_t *node)
         mfib_entry_src_flush(msrc);
     }
 
-    fib_path_list_unlock(mfib_entry->mfe_parent);
     vec_free(mfib_entry->mfe_srcs);
 
     fib_node_deinit(&mfib_entry->mfe_node);
@@ -417,10 +463,9 @@ mfib_entry_alloc (u32 fib_index,
     mfib_entry->mfe_flags = 0;
     mfib_entry->mfe_fib_index = fib_index;
     mfib_entry->mfe_prefix = *prefix;
-    mfib_entry->mfe_parent = FIB_NODE_INDEX_INVALID;
-    mfib_entry->mfe_sibling = FIB_NODE_INDEX_INVALID;
     mfib_entry->mfe_srcs = NULL;
     mfib_entry->mfe_itfs = NULL;
+    mfib_entry->mfe_rpf_id = MFIB_RPF_ID_NONE;
 
     dpo_reset(&mfib_entry->mfe_rep);
 
@@ -431,10 +476,57 @@ mfib_entry_alloc (u32 fib_index,
     return (mfib_entry);
 }
 
+static inline mfib_path_ext_t *
+mfib_entry_path_ext_find (mfib_path_ext_t *exts,
+                          fib_node_index_t path_index)
+{
+    uword *p;
+
+    p = hash_get(exts, path_index);
+
+    if (NULL != p)
+    {
+        return (mfib_entry_path_ext_get(p[0]));
+    }
+
+    return (NULL);
+}
+
+static mfib_path_ext_t*
+mfib_path_ext_add (mfib_entry_src_t *msrc,
+                   fib_node_index_t path_index,
+                   mfib_itf_flags_t mfi_flags)
+{
+    mfib_path_ext_t *path_ext;
+
+    pool_get(mfib_path_ext_pool, path_ext);
+
+    path_ext->mfpe_flags = mfi_flags;
+    path_ext->mfpe_path = path_index;
+
+    hash_set(msrc->mfes_exts, path_index,
+             path_ext - mfib_path_ext_pool);
+
+    return (path_ext);
+}
+
+static void
+mfib_path_ext_remove (mfib_entry_src_t *msrc,
+                      fib_node_index_t path_index)
+{
+    mfib_path_ext_t *path_ext;
+
+    path_ext = mfib_entry_path_ext_find(msrc->mfes_exts, path_index);
+
+    hash_unset(msrc->mfes_exts, path_index);
+    pool_put(mfib_path_ext_pool, path_ext);
+}
+
 typedef struct mfib_entry_collect_forwarding_ctx_t_
 {
     load_balance_path_t * next_hops;
     fib_forward_chain_type_t fct;
+    mfib_entry_src_t *msrc;
 } mfib_entry_collect_forwarding_ctx_t;
 
 static int
@@ -455,6 +547,20 @@ mfib_entry_src_collect_forwarding (fib_node_index_t pl_index,
         return (!0);
     }
 
+    /*
+     * If the path is not forwarding to use it
+     */
+    mfib_path_ext_t *path_ext;
+    
+    path_ext = mfib_entry_path_ext_find(ctx->msrc->mfes_exts,
+                                        path_index);
+
+    if (NULL != path_ext &&
+        !(path_ext->mfpe_flags & MFIB_ITF_FLAG_FORWARD))
+    {
+        return (!0);
+    }
+    
     switch (ctx->fct)
     {
     case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
@@ -483,46 +589,61 @@ mfib_entry_src_collect_forwarding (fib_node_index_t pl_index,
 }
 
 static void
-mfib_entry_stack (mfib_entry_t *mfib_entry)
+mfib_entry_stack (mfib_entry_t *mfib_entry,
+                  mfib_entry_src_t *msrc)
 {
     dpo_proto_t dp;
 
     dp = fib_proto_to_dpo(mfib_entry_get_proto(mfib_entry));
 
-    if (FIB_NODE_INDEX_INVALID != mfib_entry->mfe_parent)
+    if (NULL != msrc &&
+        FIB_NODE_INDEX_INVALID != msrc->mfes_pl)
     {
         mfib_entry_collect_forwarding_ctx_t ctx = {
             .next_hops = NULL,
             .fct = mfib_entry_get_default_chain_type(mfib_entry),
+            .msrc = msrc,
         };
 
-        fib_path_list_walk(mfib_entry->mfe_parent,
+        fib_path_list_walk(msrc->mfes_pl,
                            mfib_entry_src_collect_forwarding,
                            &ctx);
 
         if (!(MFIB_ENTRY_FLAG_EXCLUSIVE & mfib_entry->mfe_flags))
         {
-            /*
-             * each path contirbutes a next-hop. form a replicate
-             * from those choices.
-             */
-            if (!dpo_id_is_valid(&mfib_entry->mfe_rep) ||
-                dpo_is_drop(&mfib_entry->mfe_rep))
+            if (NULL == ctx.next_hops)
             {
-                dpo_id_t tmp_dpo = DPO_INVALID;
-
-                dpo_set(&tmp_dpo,
-                        DPO_REPLICATE, dp,
-                        replicate_create(0, dp));
-
+                /*
+                 * no next-hops, stack directly on the drop
+                 */
                 dpo_stack(DPO_MFIB_ENTRY, dp,
                           &mfib_entry->mfe_rep,
-                          &tmp_dpo);
-
-                dpo_reset(&tmp_dpo);
+                          drop_dpo_get(dp));
+            }
+            else
+            {
+                /*
+                 * each path contirbutes a next-hop. form a replicate
+                 * from those choices.
+                 */
+                if (!dpo_id_is_valid(&mfib_entry->mfe_rep) ||
+                    dpo_is_drop(&mfib_entry->mfe_rep))
+                {
+                    dpo_id_t tmp_dpo = DPO_INVALID;
+
+                    dpo_set(&tmp_dpo,
+                            DPO_REPLICATE, dp,
+                            replicate_create(0, dp));
+
+                    dpo_stack(DPO_MFIB_ENTRY, dp,
+                              &mfib_entry->mfe_rep,
+                              &tmp_dpo);
+
+                    dpo_reset(&tmp_dpo);
+                }
+                replicate_multipath_update(&mfib_entry->mfe_rep,
+                                           ctx.next_hops);
             }
-            replicate_multipath_update(&mfib_entry->mfe_rep,
-                                       ctx.next_hops);
         }
         else
         {
@@ -548,11 +669,11 @@ mfib_entry_stack (mfib_entry_t *mfib_entry)
     }
 }
 
-static void
-mfib_entry_forwarding_path_add (mfib_entry_src_t *msrc,
-                                const fib_route_path_t *rpath)
+static fib_node_index_t
+mfib_entry_src_path_add (mfib_entry_src_t *msrc,
+                         const fib_route_path_t *rpath)
 {
-    fib_node_index_t old_pl_index;
+    fib_node_index_t path_index;
     fib_route_path_t *rpaths;
 
     ASSERT(!(MFIB_ENTRY_FLAG_EXCLUSIVE & msrc->mfes_flags));
@@ -563,32 +684,26 @@ mfib_entry_forwarding_path_add (mfib_entry_src_t *msrc,
     rpaths = NULL;
     vec_add1(rpaths, rpath[0]);
 
-    old_pl_index = msrc->mfes_pl;
-
     if (FIB_NODE_INDEX_INVALID == msrc->mfes_pl)
     {
-        msrc->mfes_pl =
-            fib_path_list_create(FIB_PATH_LIST_FLAG_NO_URPF,
-                                 rpaths);
-    }
-    else
-    {
-        msrc->mfes_pl =
-            fib_path_list_copy_and_path_add(msrc->mfes_pl,
-                                            FIB_PATH_LIST_FLAG_NO_URPF,
-                                            rpaths);
+        /* A non-shared path-list */
+        msrc->mfes_pl = fib_path_list_create(FIB_PATH_LIST_FLAG_NO_URPF,
+                                             NULL);
+        fib_path_list_lock(msrc->mfes_pl);
     }
-    fib_path_list_lock(msrc->mfes_pl);
-    fib_path_list_unlock(old_pl_index);
+
+    path_index = fib_path_list_path_add(msrc->mfes_pl, rpaths);
 
     vec_free(rpaths);
+
+    return (path_index);
 }
 
-static int
-mfib_entry_forwarding_path_remove (mfib_entry_src_t *msrc,
-                                   const fib_route_path_t *rpath)
+static fib_node_index_t
+mfib_entry_src_path_remove (mfib_entry_src_t *msrc,
+                            const fib_route_path_t *rpath)
 {
-    fib_node_index_t old_pl_index;
+    fib_node_index_t path_index;
     fib_route_path_t *rpaths;
 
     ASSERT(!(MFIB_ENTRY_FLAG_EXCLUSIVE & msrc->mfes_flags));
@@ -599,56 +714,31 @@ mfib_entry_forwarding_path_remove (mfib_entry_src_t *msrc,
     rpaths = NULL;
     vec_add1(rpaths, rpath[0]);
 
-    old_pl_index = msrc->mfes_pl;
-
-    msrc->mfes_pl =
-        fib_path_list_copy_and_path_remove(msrc->mfes_pl,
-                                           FIB_PATH_LIST_FLAG_NONE,
-                                           rpaths);
-
-    fib_path_list_lock(msrc->mfes_pl);
-    fib_path_list_unlock(old_pl_index);
+    path_index = fib_path_list_path_remove(msrc->mfes_pl, rpaths);
 
     vec_free(rpaths);
 
-    return (FIB_NODE_INDEX_INVALID != msrc->mfes_pl);
+    return (path_index);
 }
 
 static void
 mfib_entry_recalculate_forwarding (mfib_entry_t *mfib_entry)
 {
-    fib_node_index_t old_pl_index;
     mfib_entry_src_t *bsrc;
 
-    old_pl_index = mfib_entry->mfe_parent;
-
     /*
      * copy the forwarding data from the bast source
      */
     bsrc = mfib_entry_get_best_src(mfib_entry);
 
-    if (NULL == bsrc)
-    {
-        mfib_entry->mfe_parent = FIB_NODE_INDEX_INVALID;
-    }
-    else
+    if (NULL != bsrc)
     {
-        mfib_entry->mfe_parent = bsrc->mfes_pl;
         mfib_entry->mfe_flags = bsrc->mfes_flags;
         mfib_entry->mfe_itfs = bsrc->mfes_itfs;
+        mfib_entry->mfe_rpf_id = bsrc->mfes_rpf_id;
     }
 
-    /*
-     * re-stack the entry on the best forwarding info.
-     */
-    if (old_pl_index != mfib_entry->mfe_parent ||
-        FIB_NODE_INDEX_INVALID == old_pl_index)
-    {
-        mfib_entry_stack(mfib_entry);
-
-        fib_path_list_lock(mfib_entry->mfe_parent);
-        fib_path_list_unlock(old_pl_index);
-    }
+    mfib_entry_stack(mfib_entry, bsrc);
 }
 
 
@@ -656,6 +746,7 @@ fib_node_index_t
 mfib_entry_create (u32 fib_index,
                    mfib_source_t source,
                    const mfib_prefix_t *prefix,
+                   fib_rpf_id_t rpf_id,
                    mfib_entry_flags_t entry_flags)
 {
     fib_node_index_t mfib_entry_index;
@@ -666,6 +757,7 @@ mfib_entry_create (u32 fib_index,
                                   &mfib_entry_index);
     msrc = mfib_entry_src_find_or_create(mfib_entry, source);
     msrc->mfes_flags = entry_flags;
+    msrc->mfes_rpf_id = rpf_id;
 
     mfib_entry_recalculate_forwarding(mfib_entry);
 
@@ -682,13 +774,14 @@ static int
 mfib_entry_src_ok_for_delete (const mfib_entry_src_t *msrc)
 {
     return ((MFIB_ENTRY_FLAG_NONE == msrc->mfes_flags &&
-             0 == mfib_entry_src_n_itfs(msrc)));
+             0 == fib_path_list_get_n_paths(msrc->mfes_pl)));
 }
 
 int
 mfib_entry_update (fib_node_index_t mfib_entry_index,
                    mfib_source_t source,
                    mfib_entry_flags_t entry_flags,
+                   fib_rpf_id_t rpf_id,
                    index_t repi)
 {
     mfib_entry_t *mfib_entry;
@@ -697,6 +790,7 @@ mfib_entry_update (fib_node_index_t mfib_entry_index,
     mfib_entry = mfib_entry_get(mfib_entry_index);
     msrc = mfib_entry_src_find_or_create(mfib_entry, source);
     msrc->mfes_flags = entry_flags;
+    msrc->mfes_rpf_id = rpf_id;
 
     if (INDEX_INVALID != repi)
     {
@@ -768,55 +862,79 @@ mfib_entry_path_update (fib_node_index_t mfib_entry_index,
                         const fib_route_path_t *rpath,
                         mfib_itf_flags_t itf_flags)
 {
+    fib_node_index_t path_index;
+    mfib_path_ext_t *path_ext;
+    mfib_itf_flags_t old, new;
     mfib_entry_t *mfib_entry;
     mfib_entry_src_t *msrc;
-    mfib_itf_t *mfib_itf;
 
     mfib_entry = mfib_entry_get(mfib_entry_index);
     ASSERT(NULL != mfib_entry);
     msrc = mfib_entry_src_find_or_create(mfib_entry, source);
 
     /*
-     * search for the interface in the current set
+     * add the path to the path-list. If it's a duplicate we'll get
+     * back the original path.
+     */
+    path_index = mfib_entry_src_path_add(msrc, rpath);
+
+    /*
+     * find the path extension for that path
      */
-    mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
-                                   rpath[0].frp_sw_if_index);
+    path_ext = mfib_entry_path_ext_find(msrc->mfes_exts, path_index);
 
-    if (NULL == mfib_itf)
+    if (NULL == path_ext)
     {
-        /*
-         * this is a path we do not yet have. If it is forwarding then we
-         * add it to the replication set
-         */
-        if (itf_flags & MFIB_ITF_FLAG_FORWARD)
-        {
-            mfib_entry_forwarding_path_add(msrc, rpath);
-        }
-        /*
-         * construct a new ITF for this entry's list
-         */
-        mfib_entry_itf_add(msrc,
-                           rpath[0].frp_sw_if_index,
-                           mfib_itf_create(rpath[0].frp_sw_if_index,
-                                           itf_flags));
+        old = MFIB_ITF_FLAG_NONE;
+        path_ext = mfib_path_ext_add(msrc, path_index, itf_flags);
     }
     else
     {
-        int was_forwarding = !!(mfib_itf->mfi_flags & MFIB_ITF_FLAG_FORWARD);
-        int is_forwarding  = !!(itf_flags & MFIB_ITF_FLAG_FORWARD);
+        old = path_ext->mfpe_flags;
+        path_ext->mfpe_flags = itf_flags;
+    }
 
-        if (!was_forwarding && is_forwarding)
-        {
-            mfib_entry_forwarding_path_add(msrc, rpath);
-        }
-        else if (was_forwarding && !is_forwarding)
+    /*
+     * Has the path changed its contribution to the input interface set.
+     * Which only paths with interfaces can do...
+     */
+    if (~0 != rpath[0].frp_sw_if_index)
+    {
+        mfib_itf_t *mfib_itf;
+
+        new = itf_flags;
+
+        if (old != new)
         {
-            mfib_entry_forwarding_path_remove(msrc, rpath);
+            if (MFIB_ITF_FLAG_NONE == new)
+            {
+                /*
+                 * no more interface flags on this path, remove
+                 * from the data-plane set
+                 */
+                mfib_entry_itf_remove(msrc, rpath[0].frp_sw_if_index);
+            }
+            else if (MFIB_ITF_FLAG_NONE == old)
+            {
+                /*
+                 * This interface is now contributing
+                 */
+                mfib_entry_itf_add(msrc,
+                                   rpath[0].frp_sw_if_index,
+                                   mfib_itf_create(rpath[0].frp_sw_if_index,
+                                                   itf_flags));
+            }
+            else
+            {
+                /*
+                 * change of flag contributions
+                 */
+                mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
+                                               rpath[0].frp_sw_if_index);
+                /* Seen by packets inflight */
+                mfib_itf->mfi_flags = new;
+            }
         }
-        /*
-         * packets in flight see these updates.
-         */
-        mfib_itf->mfi_flags = itf_flags;
     }
 
     mfib_entry_recalculate_forwarding(mfib_entry);
@@ -833,9 +951,9 @@ mfib_entry_path_remove (fib_node_index_t mfib_entry_index,
                         mfib_source_t source,
                         const fib_route_path_t *rpath)
 {
+    fib_node_index_t path_index;
     mfib_entry_t *mfib_entry;
     mfib_entry_src_t *msrc;
-    mfib_itf_t *mfib_itf;
 
     mfib_entry = mfib_entry_get(mfib_entry_index);
     ASSERT(NULL != mfib_entry);
@@ -850,33 +968,23 @@ mfib_entry_path_remove (fib_node_index_t mfib_entry_index,
     }
 
     /*
-     * search for the interface in the current set
+     * remove the path from the path-list. If it's not there we'll get
+     * back invalid
      */
-    mfib_itf = mfib_entry_itf_find(msrc->mfes_itfs,
-                                   rpath[0].frp_sw_if_index);
+    path_index = mfib_entry_src_path_remove(msrc, rpath);
 
-    if (NULL == mfib_itf)
+    if (FIB_NODE_INDEX_INVALID != path_index)
     {
         /*
-         * removing a path that does not exist
+         * don't need the extension, nor the interface anymore
          */
-        return (mfib_entry_ok_for_delete(mfib_entry));
-    }
-
-    /*
-     * we have this path. If it is forwarding then we
-     * remove it to the replication set
-     */
-    if (mfib_itf->mfi_flags & MFIB_ITF_FLAG_FORWARD)
-    {
-        mfib_entry_forwarding_path_remove(msrc, rpath);
+        mfib_path_ext_remove(msrc, path_index);
+        if (~0 != rpath[0].frp_sw_if_index)
+        {
+            mfib_entry_itf_remove(msrc, rpath[0].frp_sw_if_index);
+        }
     }
 
-    /*
-     * remove the interface/path from this entry's list
-     */
-    mfib_entry_itf_remove(msrc, rpath[0].frp_sw_if_index);
-
     if (mfib_entry_src_ok_for_delete(msrc))
     {
         /*
@@ -1057,11 +1165,14 @@ mfib_entry_encode (fib_node_index_t mfib_entry_index,
                   fib_route_path_encode_t **api_rpaths)
 {
     mfib_entry_t *mfib_entry;
+    mfib_entry_src_t *bsrc;
 
     mfib_entry = mfib_entry_get(mfib_entry_index);
-    if (FIB_NODE_INDEX_INVALID != mfib_entry->mfe_parent)
+    bsrc = mfib_entry_get_best_src(mfib_entry);
+
+    if (FIB_NODE_INDEX_INVALID != bsrc->mfes_pl)
     {
-        fib_path_list_walk(mfib_entry->mfe_parent,
+        fib_path_list_walk(bsrc->mfes_pl,
                            fib_path_encode,
                            api_rpaths);
     }
diff --git a/src/vnet/mfib/mfib_entry.h b/src/vnet/mfib/mfib_entry.h
index dc8f49aad1a..4f62b18ec65 100644
--- a/src/vnet/mfib/mfib_entry.h
+++ b/src/vnet/mfib/mfib_entry.h
@@ -42,17 +42,6 @@ typedef struct mfib_entry_t_ {
      * The index of the FIB table this entry is in
      */
     u32 mfe_fib_index;
-    /**
-     * the path-list for which this entry is a child. This is also the path-list
-     * that is contributing forwarding for this entry.
-     */
-    fib_node_index_t mfe_parent;
-    /**
-     * index of this entry in the parent's child list.
-     * This is set when this entry is added as a child, but can also
-     * be changed by the parent as it manages its list.
-     */
-    u32 mfe_sibling;
 
     /**
      * A vector of sources contributing forwarding
@@ -65,7 +54,7 @@ typedef struct mfib_entry_t_ {
     CLIB_CACHE_LINE_ALIGN_MARK(cacheline1);
 
     /**
-     * The Replicate DPO used for forwarding.
+     * The DPO used for forwarding; replicate, drop, etc..
      */
     dpo_id_t mfe_rep;
 
@@ -75,6 +64,11 @@ typedef struct mfib_entry_t_ {
     mfib_entry_flags_t mfe_flags;
 
     /**
+     * RPF-ID used when the packets ingress not from an interface
+     */
+    fib_rpf_id_t mfe_rpf_id;
+
+    /**
      * A hash table of interfaces
      */
     mfib_itf_t *mfe_itfs;
@@ -90,11 +84,13 @@ extern u8 *format_mfib_entry(u8 * s, va_list * args);
 extern fib_node_index_t mfib_entry_create(u32 fib_index,
                                           mfib_source_t source,
                                           const mfib_prefix_t *prefix,
+                                          fib_rpf_id_t rpf_id,
                                           mfib_entry_flags_t entry_flags);
 
 extern int mfib_entry_update(fib_node_index_t fib_entry_index,
                              mfib_source_t source,
                              mfib_entry_flags_t entry_flags,
+                             fib_rpf_id_t rpf_id,
                              index_t rep_dpo);
 
 extern void mfib_entry_path_update(fib_node_index_t fib_entry_index,
diff --git a/src/vnet/mfib/mfib_forward.c b/src/vnet/mfib/mfib_forward.c
index 5fe0a57c03b..3d8f4f98cb0 100644
--- a/src/vnet/mfib/mfib_forward.c
+++ b/src/vnet/mfib/mfib_forward.c
@@ -380,13 +380,27 @@ mfib_forward_rpf (vlib_main_t * vm,
              * for the case of throughput traffic that is not replicated
              * to the host stack nor sets local flags
              */
-            if (PREDICT_TRUE(NULL != mfi0))
+
+            /*
+             * If the mfib entry has a configured RPF-ID check that
+             * in preference to an interface based RPF
+             */
+            if (MFIB_RPF_ID_NONE != mfe0->mfe_rpf_id)
             {
-                iflags0 = mfi0->mfi_flags;
+                iflags0 = (mfe0->mfe_rpf_id == vnet_buffer(b0)->ip.rpf_id ?
+                           MFIB_ITF_FLAG_ACCEPT :
+                           MFIB_ITF_FLAG_NONE);
             }
             else
             {
-                iflags0 = MFIB_ITF_FLAG_NONE;
+                if (PREDICT_TRUE(NULL != mfi0))
+                {
+                    iflags0 = mfi0->mfi_flags;
+                }
+                else
+                {
+                    iflags0 = MFIB_ITF_FLAG_NONE;
+                }
             }
             eflags0 = mfe0->mfe_flags;
 
@@ -436,17 +450,16 @@ mfib_forward_rpf (vlib_main_t * vm,
             {
                 mfib_forward_rpf_trace_t *t0;
 
-                t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
+                t0 = vlib_add_trace (vm, node, b0, sizeof (*t0));
                 t0->entry_index = mfei0;
+                t0->itf_flags = iflags0;
                 if (NULL == mfi0)
                 {
                     t0->sw_if_index = ~0;
-                    t0->itf_flags = MFIB_ITF_FLAG_NONE;
                 }
                 else
                 {
                     t0->sw_if_index = mfi0->mfi_sw_if_index;
-                    t0->itf_flags = mfi0->mfi_flags;
                 }
             }
             vlib_validate_buffer_enqueue_x1 (vm, node, next,
@@ -478,7 +491,7 @@ VLIB_REGISTER_NODE (ip4_mfib_forward_rpf_node, static) = {
 
     .n_next_nodes = MFIB_FORWARD_RPF_N_NEXT,
     .next_nodes = {
-        [MFIB_FORWARD_RPF_NEXT_DROP] = "error-drop",
+        [MFIB_FORWARD_RPF_NEXT_DROP] = "ip4-drop",
     },
 };
 
@@ -503,7 +516,7 @@ VLIB_REGISTER_NODE (ip6_mfib_forward_rpf_node, static) = {
 
     .n_next_nodes = MFIB_FORWARD_RPF_N_NEXT,
     .next_nodes = {
-        [MFIB_FORWARD_RPF_NEXT_DROP] = "error-drop",
+        [MFIB_FORWARD_RPF_NEXT_DROP] = "ip6-drop",
     },
 };
 
diff --git a/src/vnet/mfib/mfib_table.c b/src/vnet/mfib/mfib_table.c
index 3b4bd985893..7ffe8941e75 100644
--- a/src/vnet/mfib/mfib_table.c
+++ b/src/vnet/mfib/mfib_table.c
@@ -165,6 +165,7 @@ fib_node_index_t
 mfib_table_entry_update (u32 fib_index,
                          const mfib_prefix_t *prefix,
                          mfib_source_t source,
+                         fib_rpf_id_t rpf_id,
                          mfib_entry_flags_t entry_flags)
 {
     fib_node_index_t mfib_entry_index;
@@ -181,7 +182,8 @@ mfib_table_entry_update (u32 fib_index,
              * update to a non-existing entry with non-zero flags
              */
             mfib_entry_index = mfib_entry_create(fib_index, source,
-                                                 prefix, entry_flags);
+                                                 prefix, rpf_id,
+                                                 entry_flags);
 
             mfib_table_entry_insert(mfib_table, prefix, mfib_entry_index);
         }
@@ -198,6 +200,7 @@ mfib_table_entry_update (u32 fib_index,
         if (mfib_entry_update(mfib_entry_index,
                               source,
                               entry_flags,
+                              rpf_id,
                               INDEX_INVALID))
         {
             /*
@@ -230,6 +233,7 @@ mfib_table_entry_path_update (u32 fib_index,
         mfib_entry_index = mfib_entry_create(fib_index,
                                              source,
                                              prefix,
+                                             MFIB_RPF_ID_NONE,
                                              MFIB_ENTRY_FLAG_NONE);
 
         mfib_table_entry_insert(mfib_table, prefix, mfib_entry_index);
@@ -304,6 +308,7 @@ mfib_table_entry_special_add (u32 fib_index,
         mfib_entry_index = mfib_entry_create(fib_index,
                                              source,
                                              prefix,
+                                             MFIB_RPF_ID_NONE,
                                              MFIB_ENTRY_FLAG_NONE);
 
         mfib_table_entry_insert(mfib_table, prefix, mfib_entry_index);
@@ -311,6 +316,7 @@ mfib_table_entry_special_add (u32 fib_index,
 
     mfib_entry_update(mfib_entry_index, source,
                       (MFIB_ENTRY_FLAG_EXCLUSIVE | entry_flags),
+                      MFIB_RPF_ID_NONE,
                       rep_dpo);
 
     return (mfib_entry_index);
diff --git a/src/vnet/mfib/mfib_table.h b/src/vnet/mfib/mfib_table.h
index 95239f7cb17..83aa04ef797 100644
--- a/src/vnet/mfib/mfib_table.h
+++ b/src/vnet/mfib/mfib_table.h
@@ -122,6 +122,7 @@ extern fib_node_index_t mfib_table_lookup_exact_match(u32 fib_index,
 extern fib_node_index_t mfib_table_entry_update(u32 fib_index,
                                                 const mfib_prefix_t *prefix,
                                                 mfib_source_t source,
+                                                fib_rpf_id_t rpf_id,
                                                 mfib_entry_flags_t flags);
 
 /**
diff --git a/src/vnet/mfib/mfib_test.c b/src/vnet/mfib/mfib_test.c
index 36a303e844d..7c92ae99b1d 100644
--- a/src/vnet/mfib/mfib_test.c
+++ b/src/vnet/mfib/mfib_test.c
@@ -20,6 +20,8 @@
 #include <vnet/mfib/mfib_signal.h>
 #include <vnet/mfib/ip6_mfib.h>
 #include <vnet/fib/fib_path_list.h>
+#include <vnet/fib/fib_test.h>
+#include <vnet/fib/fib_table.h>
 
 #include <vnet/dpo/replicate_dpo.h>
 #include <vnet/adj/adj_mcast.h>
@@ -201,8 +203,8 @@ mfib_test_validate_rep_v (const replicate_t *rep,
         if (DPO_RECEIVE != dt)
         {
             MFIB_TEST_REP((ai == dpo->dpoi_index),
-                          "bucket %d stacks on %U",
-                          bucket,
+                          "bucket %d [exp:%d] stacks on %U",
+                          bucket, ai,
                           format_dpo_id, dpo, 0);
         }
     }
@@ -734,6 +736,7 @@ mfib_test_i (fib_protocol_t PROTO,
     mfib_table_entry_update(fib_index,
                             pfx_s_g,
                             MFIB_SOURCE_API,
+                            MFIB_RPF_ID_NONE,
                             MFIB_ENTRY_FLAG_SIGNAL);
     MFIB_TEST(mfib_test_entry(mfei,
                               MFIB_ENTRY_FLAG_SIGNAL,
@@ -824,6 +827,7 @@ mfib_test_i (fib_protocol_t PROTO,
     mfib_table_entry_update(fib_index,
                             pfx_s_g,
                             MFIB_SOURCE_API,
+                            MFIB_RPF_ID_NONE,
                             (MFIB_ENTRY_FLAG_SIGNAL |
                              MFIB_ENTRY_FLAG_CONNECTED));
     MFIB_TEST(mfib_test_entry(mfei,
@@ -965,6 +969,7 @@ mfib_test_i (fib_protocol_t PROTO,
     mfib_table_entry_update(fib_index,
                             pfx_s_g,
                             MFIB_SOURCE_API,
+                            MFIB_RPF_ID_NONE,
                             MFIB_ENTRY_FLAG_NONE);
     mfei = mfib_table_lookup_exact_match(fib_index,
                                          pfx_s_g);
@@ -1074,6 +1079,117 @@ mfib_test_i (fib_protocol_t PROTO,
     dpo_reset(&td);
 
     /*
+     * A Multicast LSP. This a mLDP head-end
+     */
+    fib_node_index_t ai_mpls_10_10_10_1, lfei;
+    ip46_address_t nh_10_10_10_1 = {
+	.ip4 = {
+	    .as_u32 = clib_host_to_net_u32(0x0a0a0a01),
+	},
+    };
+    ai_mpls_10_10_10_1 = adj_nbr_add_or_lock(FIB_PROTOCOL_IP4,
+                                             VNET_LINK_MPLS,
+                                             &nh_10_10_10_1,
+                                             tm->hw[0]->sw_if_index);
+
+    fib_prefix_t pfx_3500 = {
+	.fp_len = 21,
+	.fp_proto = FIB_PROTOCOL_MPLS,
+	.fp_label = 3500,
+	.fp_eos = MPLS_EOS,
+	.fp_payload_proto = DPO_PROTO_IP4,
+    };
+    fib_test_rep_bucket_t mc_0 = {
+        .type = FT_REP_LABEL_O_ADJ,
+	.label_o_adj = {
+	    .adj = ai_mpls_10_10_10_1,
+	    .label = 3300,
+	    .eos = MPLS_EOS,
+	},
+    };
+    mpls_label_t *l3300 = NULL;
+    vec_add1(l3300, 3300);
+
+    /*
+     * MPLS enable an interface so we get the MPLS table created
+     */
+    mpls_sw_interface_enable_disable(&mpls_main,
+                                     tm->hw[0]->sw_if_index,
+                                     1);
+
+    lfei = fib_table_entry_update_one_path(0, // default MPLS Table
+                                           &pfx_3500,
+                                           FIB_SOURCE_API,
+                                           FIB_ENTRY_FLAG_MULTICAST,
+                                           FIB_PROTOCOL_IP4,
+                                           &nh_10_10_10_1,
+                                           tm->hw[0]->sw_if_index,
+                                           ~0, // invalid fib index
+                                           1,
+                                           l3300,
+                                           FIB_ROUTE_PATH_FLAG_NONE);
+    MFIB_TEST(fib_test_validate_entry(lfei,
+                                      FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+                                      1,
+                                      &mc_0),
+              "3500 via replicate over 10.10.10.1");
+
+    /*
+     * An (S,G) that resolves via the mLDP head-end
+     */
+    fib_route_path_t path_via_mldp = {
+        .frp_proto = FIB_PROTOCOL_MPLS,
+        .frp_local_label = pfx_3500.fp_label,
+        .frp_eos = MPLS_EOS,
+        .frp_sw_if_index = 0xffffffff,
+        .frp_fib_index = 0,
+        .frp_weight = 1,
+        .frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+    };
+    dpo_id_t mldp_dpo = DPO_INVALID;
+
+    fib_entry_contribute_forwarding(lfei,
+                                    FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+                                    &mldp_dpo);
+
+    mfei = mfib_table_entry_path_update(fib_index,
+                                        pfx_s_g,
+                                        MFIB_SOURCE_API,
+                                        &path_via_mldp,
+                                        MFIB_ITF_FLAG_FORWARD);
+
+    MFIB_TEST(mfib_test_entry(mfei,
+                              MFIB_ENTRY_FLAG_NONE,
+                              1,
+                              DPO_REPLICATE, mldp_dpo.dpoi_index),
+              "%U over-mLDP replicate OK",
+              format_mfib_prefix, pfx_s_g);
+
+    /*
+     * add a for-us path. this tests two types of non-attached paths on one entry
+     */
+    mfei = mfib_table_entry_path_update(fib_index,
+                                        pfx_s_g,
+                                        MFIB_SOURCE_API,
+                                        &path_for_us,
+                                        MFIB_ITF_FLAG_FORWARD);
+    MFIB_TEST(mfib_test_entry(mfei,
+                              MFIB_ENTRY_FLAG_NONE,
+                              2,
+                              DPO_REPLICATE, mldp_dpo.dpoi_index,
+                              DPO_RECEIVE, 0),
+              "%U mLDP+for-us replicate OK",
+              format_mfib_prefix, pfx_s_g);
+
+    mfib_table_entry_delete(fib_index,
+                            pfx_s_g,
+                            MFIB_SOURCE_API);
+    fib_table_entry_delete(0,
+                           &pfx_3500,
+                           FIB_SOURCE_API);
+    dpo_reset(&mldp_dpo);
+
+    /*
      * Unlock the table - it's the last lock so should be gone thereafter
      */
     mfib_table_unlock(fib_index, PROTO);
@@ -1087,6 +1203,13 @@ mfib_test_i (fib_protocol_t PROTO,
     adj_unlock(ai_3);
 
     /*
+     * MPLS disable the interface
+     */
+    mpls_sw_interface_enable_disable(&mpls_main,
+                                     tm->hw[0]->sw_if_index,
+                                     0);
+
+    /*
      * test we've leaked no resources
      */
     MFIB_TEST(0 == adj_mcast_db_size(), "%d MCAST adjs", adj_mcast_db_size());
diff --git a/src/vnet/mpls/mpls.api b/src/vnet/mpls/mpls.api
index 2e3bfaf53f5..a1e1270a853 100644
--- a/src/vnet/mpls/mpls.api
+++ b/src/vnet/mpls/mpls.api
@@ -55,6 +55,7 @@ define mpls_ip_bind_unbind_reply
     @param context - sender context, to match reply w/ request
     @param mt_is_add - Is this a route add or delete
     @param mt_sw_if_index - The SW interface index of the tunnel to delete
+    @param mt_is_multicast - Is the tunnel's underlying LSP multicast
     @param mt_next_hop_proto_is_ip4 - The next-hop is IPV4
     @param mt_next_hop_weight - The weight, for UCMP
     @param mt_next_hop[16] - the nextop address
@@ -70,6 +71,7 @@ define mpls_tunnel_add_del
   u32 mt_sw_if_index;
   u8 mt_is_add;
   u8 mt_l2_only;
+  u8 mt_is_multicast;
   u8 mt_next_hop_proto_is_ip4;
   u8 mt_next_hop_weight;
   u8 mt_next_hop[16];
@@ -102,30 +104,43 @@ define mpls_tunnel_dump
   i32 tunnel_index;
 };
 
-/** \brief mpls eth tunnel operational state response
-    @param tunnel_index - eth tunnel identifier
-    @param intfc_address - interface ipv4 addr
-    @param mask_width - interface ipv4 addr mask
-    @param hw_if_index - interface id
-    @param l2_only -
-    @param tunnel_dst_mac -
-    @param tx_sw_if_index -
-    @param encap_index - reference to mpls label table
-    @param nlabels - number of resolved labels
-    @param labels - resolved labels
+/** \brief FIB path
+    @param sw_if_index - index of the interface
+    @param weight - The weight, for UCMP
+    @param is_local - local if non-zero, else remote
+    @param is_drop - Drop the packet
+    @param is_unreach - Drop the packet and rate limit send ICMP unreachable
+    @param is_prohibit - Drop the packet and rate limit send ICMP prohibited
+    @param afi - the afi of the next hop, IP46_TYPE_IP4=1, IP46_TYPE_IP6=2
+    @param next_hop[16] - the next hop address
+
+    WARNING: this type is replicated, pending cleanup completion
+
+*/
+typeonly manual_print manual_endian define fib_path2
+{
+  u32 sw_if_index;
+  u32 weight;
+  u8 is_local;
+  u8 is_drop;
+  u8 is_unreach;
+  u8 is_prohibit;
+  u8 afi;
+  u8 next_hop[16];
+  u32 labels[16];
+};
+
+/** \brief mpls tunnel details
 */
-define mpls_tunnel_details
+manual_endian manual_print define mpls_tunnel_details
 {
   u32 context;
-  u32 tunnel_index;
-  u8 mt_l2_only;
   u8 mt_sw_if_index;
-  u8 mt_next_hop_proto_is_ip4;
-  u8 mt_next_hop[16];
-  u32 mt_next_hop_sw_if_index;
-  u32 mt_next_hop_table_id;
-  u32 mt_next_hop_n_labels;
-  u32 mt_next_hop_out_labels[mt_next_hop_n_labels];
+  u8 mt_tunnel_index;
+  u8 mt_l2_only;
+  u8 mt_is_multicast;
+  u32 mt_count;
+  vl_api_fib_path2_t mt_paths[mt_count];
 };
 
 /** \brief MPLS Route Add / del route
@@ -140,10 +155,14 @@ define mpls_tunnel_details
                                         create them
     @param mr_is_add - Is this a route add or delete
     @param mr_is_classify - Is this route result a classify
+    @param mr_is_multicast - Is this a multicast route
     @param mr_is_multipath - Is this route update a multipath - i.e. is this
                              a path addition to an existing route
     @param mr_is_resolve_host - Recurse resolution constraint via a host prefix
     @param mr_is_resolve_attached - Recurse resolution constraint via attached prefix
+    @param mr_is_interface_rx - Interface Receive path
+    @param mr_is_interface_rx - RPF-ID Receive path. The next-hop interface
+                                is used as the RPF-ID
     @param mr_next_hop_proto_is_ip4 - The next-hop is IPV4
     @param mr_next_hop_weight - The weight, for UCMP
     @param mr_next_hop[16] - the nextop address
@@ -164,9 +183,12 @@ define mpls_route_add_del
   u8 mr_create_table_if_needed;
   u8 mr_is_add;
   u8 mr_is_classify;
+  u8 mr_is_multicast;
   u8 mr_is_multipath;
   u8 mr_is_resolve_host;
   u8 mr_is_resolve_attached;
+  u8 mr_is_interface_rx;
+  u8 mr_is_rpf_id;
   u8 mr_next_hop_proto_is_ip4;
   u8 mr_next_hop_weight;
   u8 mr_next_hop[16];
@@ -187,31 +209,6 @@ define mpls_route_add_del_reply
   i32 retval;
 };
 
-/** \brief FIB path
-    @param sw_if_index - index of the interface
-    @param weight - The weight, for UCMP
-    @param is_local - local if non-zero, else remote
-    @param is_drop - Drop the packet
-    @param is_unreach - Drop the packet and rate limit send ICMP unreachable
-    @param is_prohibit - Drop the packet and rate limit send ICMP prohibited
-    @param afi - the afi of the next hop, IP46_TYPE_IP4=1, IP46_TYPE_IP6=2
-    @param next_hop[16] - the next hop address
-
-    WARNING: this type is replicated, pending cleanup completion
-
-*/
-typeonly manual_print manual_endian define fib_path2
-{
-  u32 sw_if_index;
-  u32 weight;
-  u8 is_local;
-  u8 is_drop;
-  u8 is_unreach;
-  u8 is_prohibit;
-  u8 afi;
-  u8 next_hop[16];
-};
-
 /** \brief Dump MPLS fib table
     @param client_index - opaque cookie to identify the sender
 */
diff --git a/src/vnet/mpls/mpls.c b/src/vnet/mpls/mpls.c
index 482577b17ef..451b15cf03c 100644
--- a/src/vnet/mpls/mpls.c
+++ b/src/vnet/mpls/mpls.c
@@ -286,7 +286,15 @@ vnet_mpls_local_label (vlib_main_t * vm,
 	  rpath.frp_proto = FIB_PROTOCOL_IP4;
 	  vec_add1(rpaths, rpath);
       }
-			 
+      else if (unformat (line_input, "rx-ip4 %U",
+			 unformat_vnet_sw_interface, vnm,
+			 &rpath.frp_sw_if_index))
+      {
+	  rpath.frp_weight = 1;
+	  rpath.frp_proto = FIB_PROTOCOL_IP4;
+          rpath.frp_flags = FIB_ROUTE_PATH_INTF_RX;
+	  vec_add1(rpaths, rpath);
+      }
       else if (unformat (line_input, "via %U %U",
 			 unformat_ip6_address,
  			 &rpath.frp_addr.ip6,
@@ -512,10 +520,3 @@ mpls_init (vlib_main_t * vm)
 }
 
 VLIB_INIT_FUNCTION (mpls_init);
-
-mpls_main_t * mpls_get_main (vlib_main_t * vm)
-{
-  vlib_call_init_function (vm, mpls_init);
-  return &mpls_main;
-}
-
diff --git a/src/vnet/mpls/mpls_api.c b/src/vnet/mpls/mpls_api.c
index f1aef6c92c6..6bfc491d344 100644
--- a/src/vnet/mpls/mpls_api.c
+++ b/src/vnet/mpls/mpls_api.c
@@ -27,6 +27,7 @@
 #include <vnet/fib/fib_table.h>
 #include <vnet/fib/fib_api.h>
 #include <vnet/fib/mpls_fib.h>
+#include <vnet/fib/fib_path_list.h>
 
 #include <vnet/vnet_msg_enum.h>
 
@@ -163,6 +164,7 @@ mpls_route_add_del_t_handler (vnet_main_t * vnm,
 			    dpo_proto_to_fib (pfx.fp_payload_proto),
 			    mp->mr_next_hop_table_id,
 			    mp->mr_create_table_if_needed,
+			    mp->mr_is_rpf_id,
 			    &fib_index, &next_hop_fib_index);
 
   if (0 != rv)
@@ -192,10 +194,13 @@ mpls_route_add_del_t_handler (vnet_main_t * vnm,
 				   0,	// mp->is_unreach,
 				   0,	// mp->is_prohibit,
 				   0,	// mp->is_local,
+				   mp->mr_is_multicast,
 				   mp->mr_is_classify,
 				   mp->mr_classify_table_index,
 				   mp->mr_is_resolve_host,
 				   mp->mr_is_resolve_attached,
+				   mp->mr_is_interface_rx,
+				   mp->mr_is_rpf_id,
 				   fib_index, &pfx,
 				   mp->mr_next_hop_proto_is_ip4,
 				   &nh, ntohl (mp->mr_next_hop_sw_if_index),
@@ -229,46 +234,54 @@ vl_api_mpls_tunnel_add_del_t_handler (vl_api_mpls_tunnel_add_del_t * mp)
   int rv = 0;
   u32 tunnel_sw_if_index;
   int ii;
+  fib_route_path_t rpath, *rpaths = NULL;
+
+  memset (&rpath, 0, sizeof (rpath));
 
   stats_dslock_with_hint (1 /* release hint */ , 5 /* tag */ );
 
-  if (mp->mt_is_add)
+  if (mp->mt_next_hop_proto_is_ip4)
     {
-      fib_route_path_t rpath, *rpaths = NULL;
-      mpls_label_t *label_stack = NULL;
-
-      memset (&rpath, 0, sizeof (rpath));
-
-      if (mp->mt_next_hop_proto_is_ip4)
-	{
-	  rpath.frp_proto = FIB_PROTOCOL_IP4;
-	  clib_memcpy (&rpath.frp_addr.ip4,
-		       mp->mt_next_hop, sizeof (rpath.frp_addr.ip4));
-	}
-      else
-	{
-	  rpath.frp_proto = FIB_PROTOCOL_IP6;
-	  clib_memcpy (&rpath.frp_addr.ip6,
-		       mp->mt_next_hop, sizeof (rpath.frp_addr.ip6));
-	}
-      rpath.frp_sw_if_index = ntohl (mp->mt_next_hop_sw_if_index);
+      rpath.frp_proto = FIB_PROTOCOL_IP4;
+      clib_memcpy (&rpath.frp_addr.ip4,
+		   mp->mt_next_hop, sizeof (rpath.frp_addr.ip4));
+    }
+  else
+    {
+      rpath.frp_proto = FIB_PROTOCOL_IP6;
+      clib_memcpy (&rpath.frp_addr.ip6,
+		   mp->mt_next_hop, sizeof (rpath.frp_addr.ip6));
+    }
+  rpath.frp_sw_if_index = ntohl (mp->mt_next_hop_sw_if_index);
+  rpath.frp_weight = 1;
 
+  if (mp->mt_is_add)
+    {
       for (ii = 0; ii < mp->mt_next_hop_n_out_labels; ii++)
-	vec_add1 (label_stack, ntohl (mp->mt_next_hop_out_label_stack[ii]));
+	vec_add1 (rpath.frp_label_stack,
+		  ntohl (mp->mt_next_hop_out_label_stack[ii]));
+    }
 
-      vec_add1 (rpaths, rpath);
+  vec_add1 (rpaths, rpath);
 
-      vnet_mpls_tunnel_add (rpaths, label_stack,
-			    mp->mt_l2_only, &tunnel_sw_if_index);
-      vec_free (rpaths);
-      vec_free (label_stack);
+  tunnel_sw_if_index = ntohl (mp->mt_sw_if_index);
+
+  if (mp->mt_is_add)
+    {
+      if (~0 == tunnel_sw_if_index)
+	tunnel_sw_if_index = vnet_mpls_tunnel_create (mp->mt_l2_only,
+						      mp->mt_is_multicast);
+      vnet_mpls_tunnel_path_add (tunnel_sw_if_index, rpaths);
     }
   else
     {
       tunnel_sw_if_index = ntohl (mp->mt_sw_if_index);
-      vnet_mpls_tunnel_del (tunnel_sw_if_index);
+      if (!vnet_mpls_tunnel_path_remove (tunnel_sw_if_index, rpaths))
+	vnet_mpls_tunnel_del (tunnel_sw_if_index);
     }
 
+  vec_free (rpaths);
+
   stats_dsunlock ();
 
   /* *INDENT-OFF* */
@@ -289,10 +302,12 @@ typedef struct mpls_tunnel_send_walk_ctx_t_
 static void
 send_mpls_tunnel_entry (u32 mti, void *arg)
 {
+  fib_route_path_encode_t *api_rpaths, *api_rpath;
   mpls_tunnel_send_walk_ctx_t *ctx;
   vl_api_mpls_tunnel_details_t *mp;
   const mpls_tunnel_t *mt;
-  u32 nlabels;
+  vl_api_fib_path2_t *fp;
+  u32 n;
 
   ctx = arg;
 
@@ -300,18 +315,34 @@ send_mpls_tunnel_entry (u32 mti, void *arg)
     return;
 
   mt = mpls_tunnel_get (mti);
-  nlabels = vec_len (mt->mt_label_stack);
+  n = fib_path_list_get_n_paths (mt->mt_path_list);
+
+  mp = vl_msg_api_alloc (sizeof (*mp) + n * sizeof (vl_api_fib_path2_t));
+  memset (mp, 0, sizeof (*mp) + n * sizeof (vl_api_fib_path2_t));
 
-  mp = vl_msg_api_alloc (sizeof (*mp) + nlabels * sizeof (u32));
-  memset (mp, 0, sizeof (*mp));
   mp->_vl_msg_id = ntohs (VL_API_MPLS_TUNNEL_DETAILS);
   mp->context = ctx->context;
 
-  mp->tunnel_index = ntohl (mti);
-  memcpy (mp->mt_next_hop_out_labels,
-	  mt->mt_label_stack, nlabels * sizeof (u32));
+  mp->mt_tunnel_index = ntohl (mti);
+  mp->mt_count = ntohl (n);
+
+  fib_path_list_walk (mt->mt_path_list, fib_path_encode, &api_rpaths);
+
+  fp = mp->mt_paths;
+  vec_foreach (api_rpath, api_rpaths)
+  {
+    memset (fp, 0, sizeof (*fp));
+
+    fp->weight = htonl (api_rpath->rpath.frp_weight);
+    fp->sw_if_index = htonl (api_rpath->rpath.frp_sw_if_index);
+    copy_fib_next_hop (api_rpath, fp);
+    fp++;
+  }
 
   // FIXME
+  // memcpy (mp->mt_next_hop_out_labels,
+  //   mt->mt_label_stack, nlabels * sizeof (u32));
+
 
   vl_msg_api_send_shmem (ctx->q, (u8 *) & mp);
 }
diff --git a/src/vnet/mpls/mpls_input.c b/src/vnet/mpls/mpls_input.c
index 1b9bdd05eed..86ad8bba270 100644
--- a/src/vnet/mpls/mpls_input.c
+++ b/src/vnet/mpls/mpls_input.c
@@ -291,7 +291,7 @@ mpls_setup_nodes (vlib_main_t * vm)
   rt->last_outer_fib_index = 0;
   rt->mpls_main = &mpls_main;
 
-  ethernet_register_input_type (vm, ETHERNET_TYPE_MPLS_UNICAST,
+  ethernet_register_input_type (vm, ETHERNET_TYPE_MPLS,
                                 mpls_input_node.index);
 }
 
diff --git a/src/vnet/mpls/mpls_lookup.c b/src/vnet/mpls/mpls_lookup.c
index ace6a70fe80..3c6be7e85ec 100644
--- a/src/vnet/mpls/mpls_lookup.c
+++ b/src/vnet/mpls/mpls_lookup.c
@@ -20,8 +20,17 @@
 #include <vnet/mpls/mpls.h>
 #include <vnet/fib/mpls_fib.h>
 #include <vnet/dpo/load_balance.h>
+#include <vnet/dpo/replicate_dpo.h>
 
-vlib_node_registration_t mpls_lookup_node;
+/**
+ * Static MPLS VLIB forwarding node
+ */
+static vlib_node_registration_t mpls_lookup_node;
+
+/**
+ * The arc/edge from the MPLS lookup node to the MPLS replicate node
+ */
+static u32 mpls_lookup_to_replicate_edge;
 
 typedef struct {
   u32 next_index;
@@ -156,81 +165,123 @@ mpls_lookup (vlib_main_t * vm,
           lbi2 = mpls_fib_table_forwarding_lookup (lfib_index2, h2);
           lbi3 = mpls_fib_table_forwarding_lookup (lfib_index3, h3);
 
-          lb0 = load_balance_get(lbi0);
-          lb1 = load_balance_get(lbi1);
-          lb2 = load_balance_get(lbi2);
-          lb3 = load_balance_get(lbi3);
-
           hash_c0 = vnet_buffer(b0)->ip.flow_hash = 0;
           hash_c1 = vnet_buffer(b1)->ip.flow_hash = 0;
           hash_c2 = vnet_buffer(b2)->ip.flow_hash = 0;
           hash_c3 = vnet_buffer(b3)->ip.flow_hash = 0;
 
-          if (PREDICT_FALSE(lb0->lb_n_buckets > 1))
+          if (MPLS_IS_REPLICATE & lbi0)
           {
-              hash_c0 = vnet_buffer (b0)->ip.flow_hash =
-                  mpls_compute_flow_hash(h0, lb0->lb_hash_config);
+              next0 = mpls_lookup_to_replicate_edge;
+              vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
+                  (lbi0 & ~MPLS_IS_REPLICATE);
           }
-          if (PREDICT_FALSE(lb1->lb_n_buckets > 1))
+          else
           {
-              hash_c1 = vnet_buffer (b1)->ip.flow_hash =
-                  mpls_compute_flow_hash(h1, lb1->lb_hash_config);
+              lb0 = load_balance_get(lbi0);
+
+              if (PREDICT_FALSE(lb0->lb_n_buckets > 1))
+              {
+                  hash_c0 = vnet_buffer (b0)->ip.flow_hash =
+                      mpls_compute_flow_hash(h0, lb0->lb_hash_config);
+              }
+              ASSERT (lb0->lb_n_buckets > 0);
+              ASSERT (is_pow2 (lb0->lb_n_buckets));
+              dpo0 = load_balance_get_bucket_i(lb0,
+                                               (hash_c0 &
+                                                (lb0->lb_n_buckets_minus_1)));
+              next0 = dpo0->dpoi_next_node;
+
+              vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
+
+              vlib_increment_combined_counter
+                  (cm, thread_index, lbi0, 1,
+                   vlib_buffer_length_in_chain (vm, b0));
           }
-          if (PREDICT_FALSE(lb2->lb_n_buckets > 1))
+          if (MPLS_IS_REPLICATE & lbi1)
           {
-              hash_c2 = vnet_buffer (b2)->ip.flow_hash =
-                  mpls_compute_flow_hash(h2, lb2->lb_hash_config);
+              next1 = mpls_lookup_to_replicate_edge;
+              vnet_buffer (b1)->ip.adj_index[VLIB_TX] =
+                  (lbi1 & ~MPLS_IS_REPLICATE);
           }
-          if (PREDICT_FALSE(lb3->lb_n_buckets > 1))
+          else
           {
-              hash_c3 = vnet_buffer (b3)->ip.flow_hash =
-                  mpls_compute_flow_hash(h3, lb3->lb_hash_config);
-          }
-
-          ASSERT (lb0->lb_n_buckets > 0);
-          ASSERT (is_pow2 (lb0->lb_n_buckets));
-          ASSERT (lb1->lb_n_buckets > 0);
-          ASSERT (is_pow2 (lb1->lb_n_buckets));
-          ASSERT (lb2->lb_n_buckets > 0);
-          ASSERT (is_pow2 (lb2->lb_n_buckets));
-          ASSERT (lb3->lb_n_buckets > 0);
-          ASSERT (is_pow2 (lb3->lb_n_buckets));
-
-          dpo0 = load_balance_get_bucket_i(lb0,
-                                           (hash_c0 &
-                                            (lb0->lb_n_buckets_minus_1)));
-          dpo1 = load_balance_get_bucket_i(lb1,
-                                           (hash_c1 &
-                                            (lb1->lb_n_buckets_minus_1)));
-          dpo2 = load_balance_get_bucket_i(lb2,
-                                           (hash_c2 &
-                                            (lb2->lb_n_buckets_minus_1)));
-          dpo3 = load_balance_get_bucket_i(lb3,
-                                           (hash_c3 &
-                                            (lb3->lb_n_buckets_minus_1)));
+              lb1 = load_balance_get(lbi1);
 
-          next0 = dpo0->dpoi_next_node;
-          next1 = dpo1->dpoi_next_node;
-          next2 = dpo2->dpoi_next_node;
-          next3 = dpo3->dpoi_next_node;
+              if (PREDICT_FALSE(lb1->lb_n_buckets > 1))
+              {
+                  hash_c1 = vnet_buffer (b1)->ip.flow_hash =
+                      mpls_compute_flow_hash(h1, lb1->lb_hash_config);
+              }
+              ASSERT (lb1->lb_n_buckets > 0);
+              ASSERT (is_pow2 (lb1->lb_n_buckets));
+              dpo1 = load_balance_get_bucket_i(lb1,
+                                               (hash_c1 &
+                                                (lb1->lb_n_buckets_minus_1)));
+              next1 = dpo1->dpoi_next_node;
+
+              vnet_buffer (b1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index;
+
+              vlib_increment_combined_counter
+                  (cm, thread_index, lbi1, 1,
+                   vlib_buffer_length_in_chain (vm, b1));
+          }
+          if (MPLS_IS_REPLICATE & lbi2)
+          {
+              next2 = mpls_lookup_to_replicate_edge;
+              vnet_buffer (b2)->ip.adj_index[VLIB_TX] =
+                  (lbi2 & ~MPLS_IS_REPLICATE);
+          }
+          else
+          {
+              lb2 = load_balance_get(lbi2);
 
-          vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
-          vnet_buffer (b1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index;
-          vnet_buffer (b2)->ip.adj_index[VLIB_TX] = dpo2->dpoi_index;
-          vnet_buffer (b3)->ip.adj_index[VLIB_TX] = dpo3->dpoi_index;
+              if (PREDICT_FALSE(lb2->lb_n_buckets > 1))
+              {
+                  hash_c2 = vnet_buffer (b2)->ip.flow_hash =
+                      mpls_compute_flow_hash(h2, lb2->lb_hash_config);
+              }
+              ASSERT (lb2->lb_n_buckets > 0);
+              ASSERT (is_pow2 (lb2->lb_n_buckets));
+              dpo2 = load_balance_get_bucket_i(lb2,
+                                               (hash_c2 &
+                                                (lb2->lb_n_buckets_minus_1)));
+              next2 = dpo2->dpoi_next_node;
+
+              vnet_buffer (b2)->ip.adj_index[VLIB_TX] = dpo2->dpoi_index;
+
+              vlib_increment_combined_counter
+                  (cm, thread_index, lbi2, 1,
+                   vlib_buffer_length_in_chain (vm, b2));
+          }
+          if (MPLS_IS_REPLICATE & lbi3)
+          {
+              next3 = mpls_lookup_to_replicate_edge;
+              vnet_buffer (b3)->ip.adj_index[VLIB_TX] =
+                  (lbi3 & ~MPLS_IS_REPLICATE);
+          }
+          else
+          {
+              lb3 = load_balance_get(lbi3);
 
-          vlib_increment_combined_counter
-              (cm, thread_index, lbi0, 1,
-               vlib_buffer_length_in_chain (vm, b0));
-          vlib_increment_combined_counter
-              (cm, thread_index, lbi1, 1,
-               vlib_buffer_length_in_chain (vm, b1));
-          vlib_increment_combined_counter
-              (cm, thread_index, lbi2, 1,
-               vlib_buffer_length_in_chain (vm, b2));
-          vlib_increment_combined_counter
-              (cm, thread_index, lbi3, 1,
-               vlib_buffer_length_in_chain (vm, b3));
+              if (PREDICT_FALSE(lb3->lb_n_buckets > 1))
+              {
+                  hash_c3 = vnet_buffer (b3)->ip.flow_hash =
+                      mpls_compute_flow_hash(h3, lb3->lb_hash_config);
+              }
+              ASSERT (lb3->lb_n_buckets > 0);
+              ASSERT (is_pow2 (lb3->lb_n_buckets));
+              dpo3 = load_balance_get_bucket_i(lb3,
+                                               (hash_c3 &
+                                                (lb3->lb_n_buckets_minus_1)));
+              next3 = dpo3->dpoi_next_node;
+
+              vnet_buffer (b3)->ip.adj_index[VLIB_TX] = dpo3->dpoi_index;
+
+              vlib_increment_combined_counter
+                  (cm, thread_index, lbi3, 1,
+                   vlib_buffer_length_in_chain (vm, b3));
+          }
 
           /*
            * before we pop the label copy th values we need to maintain.
@@ -331,31 +382,41 @@ mpls_lookup (vlib_main_t * vm,
                                 vnet_buffer(b0)->sw_if_index[VLIB_RX]);
 
           lbi0 = mpls_fib_table_forwarding_lookup(lfib_index0, h0);
-	  lb0 = load_balance_get(lbi0);
-
           hash_c0 = vnet_buffer(b0)->ip.flow_hash = 0;
-          if (PREDICT_FALSE(lb0->lb_n_buckets > 1))
+
+          if (MPLS_IS_REPLICATE & lbi0)
           {
-              hash_c0 = vnet_buffer (b0)->ip.flow_hash =
-                  mpls_compute_flow_hash(h0, lb0->lb_hash_config);
+              next0 = mpls_lookup_to_replicate_edge;
+              vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
+                  (lbi0 & ~MPLS_IS_REPLICATE);
           }
+          else
+          {
+              lb0 = load_balance_get(lbi0);
 
-          ASSERT (lb0->lb_n_buckets > 0);
-          ASSERT (is_pow2 (lb0->lb_n_buckets));
+              if (PREDICT_FALSE(lb0->lb_n_buckets > 1))
+              {
+                  hash_c0 = vnet_buffer (b0)->ip.flow_hash =
+                      mpls_compute_flow_hash(h0, lb0->lb_hash_config);
+              }
 
-          dpo0 = load_balance_get_bucket_i(lb0,
-                                           (hash_c0 &
-                                            (lb0->lb_n_buckets_minus_1)));
+              ASSERT (lb0->lb_n_buckets > 0);
+              ASSERT (is_pow2 (lb0->lb_n_buckets));
 
-          next0 = dpo0->dpoi_next_node;
-          vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
+              dpo0 = load_balance_get_bucket_i(lb0,
+                                               (hash_c0 &
+                                                (lb0->lb_n_buckets_minus_1)));
 
-          vlib_increment_combined_counter
-              (cm, thread_index, lbi0, 1,
-               vlib_buffer_length_in_chain (vm, b0));
+              next0 = dpo0->dpoi_next_node;
+              vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
+
+              vlib_increment_combined_counter
+                  (cm, thread_index, lbi0, 1,
+                   vlib_buffer_length_in_chain (vm, b0));
+          }
 
           /*
-           * before we pop the label copy th values we need to maintain.
+           * before we pop the label copy, values we need to maintain.
            * The label header is in network byte order.
            *  last byte is the TTL.
            *  bits 2 to 4 inclusive are the EXP bits
@@ -398,7 +459,7 @@ static char * mpls_error_strings[] = {
 #undef mpls_error
 };
 
-VLIB_REGISTER_NODE (mpls_lookup_node) = {
+VLIB_REGISTER_NODE (mpls_lookup_node, static) = {
   .function = mpls_lookup,
   .name = "mpls-lookup",
   /* Takes a vector of packets. */
@@ -621,3 +682,22 @@ VLIB_REGISTER_NODE (mpls_load_balance_node) = {
 };
 
 VLIB_NODE_FUNCTION_MULTIARCH (mpls_load_balance_node, mpls_load_balance)
+
+
+static clib_error_t *
+mpls_lookup_init (vlib_main_t * vm)
+{
+  clib_error_t * error;
+
+  if ((error = vlib_call_init_function (vm, mpls_init)))
+    return error;
+
+  mpls_lookup_to_replicate_edge =
+      vlib_node_add_named_next(vm,
+                               mpls_lookup_node.index,
+                               "mpls-replicate");
+
+  return (NULL);
+}
+
+VLIB_INIT_FUNCTION (mpls_lookup_init);
diff --git a/src/vnet/mpls/mpls_tunnel.c b/src/vnet/mpls/mpls_tunnel.c
index ac6fdcdf1d7..1254dd9ddfb 100644
--- a/src/vnet/mpls/mpls_tunnel.c
+++ b/src/vnet/mpls/mpls_tunnel.c
@@ -18,9 +18,12 @@
 #include <vnet/vnet.h>
 #include <vnet/pg/pg.h>
 #include <vnet/mpls/mpls_tunnel.h>
+#include <vnet/mpls/mpls_types.h>
 #include <vnet/ip/ip.h>
 #include <vnet/fib/fib_path_list.h>
 #include <vnet/adj/adj_midchain.h>
+#include <vnet/adj/adj_mcast.h>
+#include <vnet/dpo/replicate_dpo.h>
 
 /**
  * @brief pool of tunnel instances
@@ -38,109 +41,189 @@ static u32 * mpls_tunnel_free_hw_if_indices;
 static u32 *mpls_tunnel_db;
 
 /**
+ * @brief MPLS tunnel flags strings
+ */
+static const char *mpls_tunnel_attribute_names[] = MPLS_TUNNEL_ATTRIBUTES;
+
+/**
  * @brief Get a tunnel object from a SW interface index
  */
 static mpls_tunnel_t*
 mpls_tunnel_get_from_sw_if_index (u32 sw_if_index)
 {
     if ((vec_len(mpls_tunnel_db) < sw_if_index) ||
-	(~0 == mpls_tunnel_db[sw_if_index]))
-	return (NULL);
+        (~0 == mpls_tunnel_db[sw_if_index]))
+        return (NULL);
 
     return (pool_elt_at_index(mpls_tunnel_pool,
-			      mpls_tunnel_db[sw_if_index]));
+                              mpls_tunnel_db[sw_if_index]));
 }
 
 /**
- * @brief Return true if the label stack is imp-null only
+ * @brief Build a rewrite string for the MPLS tunnel.
  */
-static fib_forward_chain_type_t
-mpls_tunnel_get_fwd_chain_type (const mpls_tunnel_t *mt)
+static u8*
+mpls_tunnel_build_rewrite_i (void)
 {
-    if ((1 == vec_len(mt->mt_label_stack)) &&
-	(mt->mt_label_stack[0] == MPLS_IETF_IMPLICIT_NULL_LABEL))
-    {
-	/*
-	 * the only label in the label stack is implicit null
-	 * we need to build an IP chain.
-	 */
-	if (FIB_PROTOCOL_IP4 == fib_path_list_get_proto(mt->mt_path_list))
-	{
-	    return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
-	}
-	else
-	{
-	    return (FIB_FORW_CHAIN_TYPE_UNICAST_IP6);
-	}
-    }
-    else
-    {
-	return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
-    }
+    /*
+     * passing the adj code a NULL rewirte means 'i don't have one cos
+     * t'other end is unresolved'. That's not the case here. For the mpls
+     * tunnel there are just no bytes of encap to apply in the adj. We'll impose
+     * the label stack once we choose a path. So return a zero length rewrite.
+     */
+    u8 *rewrite = NULL;
+
+    vec_validate(rewrite, 0);
+    vec_reset_length(rewrite);
+
+    return (rewrite);
 }
 
 /**
  * @brief Build a rewrite string for the MPLS tunnel.
- *
- * We have choices here;
- *  1 - have an Adjacency with a zero length string and stack it on
- *       MPLS label objects
- *  2 - put the label header rewrites in the adjacency string.
- *
- * We choose 2 since it results in fewer graph nodes in the egress path
  */
 static u8*
 mpls_tunnel_build_rewrite (vnet_main_t * vnm,
-			   u32 sw_if_index,
-			   vnet_link_t link_type,
-			   const void *dst_address)
+                           u32 sw_if_index,
+                           vnet_link_t link_type,
+                           const void *dst_address)
 {
-    mpls_unicast_header_t *muh;
-    mpls_tunnel_t *mt;
-    u8 *rewrite;
-    u32 mti, ii;
+    return (mpls_tunnel_build_rewrite_i());
+}
 
-    rewrite = NULL;
-    mti = mpls_tunnel_db[sw_if_index];
-    mt = pool_elt_at_index(mpls_tunnel_pool, mti);
+typedef struct mpls_tunnel_collect_forwarding_ctx_t_
+{
+    load_balance_path_t * next_hops;
+    const mpls_tunnel_t *mt;
+    fib_forward_chain_type_t fct;
+} mpls_tunnel_collect_forwarding_ctx_t;
+
+static int
+mpls_tunnel_collect_forwarding (fib_node_index_t pl_index,
+                                fib_node_index_t path_index,
+                                void *arg)
+{
+    mpls_tunnel_collect_forwarding_ctx_t *ctx;
+    fib_path_ext_t *path_ext;
+    int have_path_ext;
+
+    ctx = arg;
 
     /*
-     * The vector must be allocated as u8 so the length is correct
+     * if the path is not resolved, don't include it.
      */
-    ASSERT(0 < vec_len(mt->mt_label_stack));
-    vec_validate(rewrite, (sizeof(*muh) * vec_len(mt->mt_label_stack)) - 1);
-    ASSERT(rewrite);
-    muh = (mpls_unicast_header_t *)rewrite;
+    if (!fib_path_is_resolved(path_index))
+    {
+        return (!0);
+    }
 
     /*
-     * The last (inner most) label in the stack may be EOS, all the rest Non-EOS
+     * get the matching path-extension for the path being visited.
      */
-    for (ii = 0; ii < vec_len(mt->mt_label_stack)-1; ii++)
+    have_path_ext = 0;
+    vec_foreach(path_ext, ctx->mt->mt_path_exts)
     {
-	vnet_mpls_uc_set_label(&muh[ii].label_exp_s_ttl, mt->mt_label_stack[ii]);
-	vnet_mpls_uc_set_ttl(&muh[ii].label_exp_s_ttl, 255);
-	vnet_mpls_uc_set_exp(&muh[ii].label_exp_s_ttl, 0);
-	vnet_mpls_uc_set_s(&muh[ii].label_exp_s_ttl, MPLS_NON_EOS);
-	muh[ii].label_exp_s_ttl = clib_host_to_net_u32(muh[ii].label_exp_s_ttl);
+        if (path_ext->fpe_path_index == path_index)
+        {
+            have_path_ext = 1;
+            break;
+        }
     }
 
-    vnet_mpls_uc_set_label(&muh[ii].label_exp_s_ttl, mt->mt_label_stack[ii]);
-    vnet_mpls_uc_set_ttl(&muh[ii].label_exp_s_ttl, 255);
-    vnet_mpls_uc_set_exp(&muh[ii].label_exp_s_ttl, 0);
-
-    if ((VNET_LINK_MPLS == link_type) &&
-	(mt->mt_label_stack[ii] != MPLS_IETF_IMPLICIT_NULL_LABEL))
+    if (have_path_ext)
     {
-	vnet_mpls_uc_set_s(&muh[ii].label_exp_s_ttl, MPLS_NON_EOS);
+        /*
+         * found a matching extension. stack it to obtain the forwarding
+         * info for this path.
+         */
+        ctx->next_hops = fib_path_ext_stack(path_ext,
+                                            ctx->fct,
+                                            ctx->fct,
+                                            ctx->next_hops);
     }
     else
+        ASSERT(0);
+    /*
+     * else
+     *   There should be a path-extenios associated with each path
+     */
+
+    return (!0);
+}
+
+static void
+mpls_tunnel_mk_lb (mpls_tunnel_t *mt,
+                   vnet_link_t linkt,
+                   fib_forward_chain_type_t fct,
+                   dpo_id_t *dpo_lb)
+{
+    dpo_proto_t lb_proto;
+
+    /*
+     * If the entry has path extensions then we construct a load-balance
+     * by stacking the extensions on the forwarding chains of the paths.
+     * Otherwise we use the load-balance of the path-list
+     */
+    mpls_tunnel_collect_forwarding_ctx_t ctx = {
+        .mt = mt,
+        .next_hops = NULL,
+        .fct = fct,
+    };
+
+    /*
+     * As an optimisation we allocate the vector of next-hops to be sized
+     * equal to the maximum nuber of paths we will need, which is also the
+     * most likely number we will need, since in most cases the paths are 'up'.
+     */
+    vec_validate(ctx.next_hops, fib_path_list_get_n_paths(mt->mt_path_list));
+    vec_reset_length(ctx.next_hops);
+
+    lb_proto = vnet_link_to_dpo_proto(linkt);
+
+    fib_path_list_walk(mt->mt_path_list,
+                       mpls_tunnel_collect_forwarding,
+                       &ctx);
+
+    if (!dpo_id_is_valid(dpo_lb))
     {
-	vnet_mpls_uc_set_s(&muh[ii].label_exp_s_ttl, MPLS_EOS);
+        /*
+         * first time create
+         */
+        if (mt->mt_flags & MPLS_TUNNEL_FLAG_MCAST)
+        {
+            dpo_set(dpo_lb,
+                    DPO_REPLICATE,
+                    lb_proto,
+                    replicate_create(0, lb_proto));
+        }
+        else
+        {
+            flow_hash_config_t fhc;
+
+            fhc = 0; // FIXME
+            /* fhc = fib_table_get_flow_hash_config(fib_entry->fe_fib_index, */
+            /*                                      dpo_proto_to_fib(lb_proto)); */
+            dpo_set(dpo_lb,
+                    DPO_LOAD_BALANCE,
+                    lb_proto,
+                    load_balance_create(0, lb_proto, fhc));
+        }
     }
 
-    muh[ii].label_exp_s_ttl = clib_host_to_net_u32(muh[ii].label_exp_s_ttl);
-
-    return (rewrite);
+    if (mt->mt_flags & MPLS_TUNNEL_FLAG_MCAST)
+    {
+        /*
+         * MPLS multicast
+         */
+        replicate_multipath_update(dpo_lb, ctx.next_hops);
+    }
+    else
+    {
+        load_balance_multipath_update(dpo_lb,
+                                      ctx.next_hops,
+                                      LOAD_BALANCE_FLAG_NONE);
+        vec_free(ctx.next_hops);
+    }
 }
 
 /**
@@ -161,45 +244,47 @@ mpls_tunnel_stack (adj_index_t ai)
     mt = mpls_tunnel_get_from_sw_if_index(sw_if_index);
 
     if (NULL == mt)
-	return;
+        return;
 
     /*
-     * find the adjacency that is contributed by the FIB path-list
-     * that this tunnel resovles via, and use it as the next adj
-     * in the midchain
+     * while we're stacking the adj, remove the tunnel from the child list
+     * of the path list. this breaks a circular dependency of walk updates
+     * where the create of adjacencies in the children can lead to walks
+     * that get back here.
      */
-    if (vnet_hw_interface_get_flags(vnet_get_main(),
-				    mt->mt_hw_if_index) &
-	VNET_HW_INTERFACE_FLAG_LINK_UP)
-    {
-	dpo_id_t dpo = DPO_INVALID;
+    fib_path_list_lock(mt->mt_path_list);
 
-	fib_path_list_contribute_forwarding(mt->mt_path_list,
-					    mpls_tunnel_get_fwd_chain_type(mt),
-					    &dpo);
-
-	if (DPO_LOAD_BALANCE == dpo.dpoi_type)
-	{
-	    /*
-	     * we don't support multiple paths, so no need to load-balance.
-	     * pull the first and only choice and stack directly on that.
-	     */
-	    load_balance_t *lb;
-
-	    lb = load_balance_get (dpo.dpoi_index);
+    fib_path_list_child_remove(mt->mt_path_list,
+                               mt->mt_sibling_index);
 
-	    ASSERT(1 == lb->lb_n_buckets);
+    /*
+     * Construct the DPO (load-balance or replicate) that we can stack
+     * the tunnel's midchain on
+     */
+    if (vnet_hw_interface_get_flags(vnet_get_main(),
+                                    mt->mt_hw_if_index) &
+        VNET_HW_INTERFACE_FLAG_LINK_UP)
+    {
+        dpo_id_t dpo = DPO_INVALID;
 
-	    dpo_copy(&dpo, load_balance_get_bucket_i (lb, 0));
-	}
+        mpls_tunnel_mk_lb(mt,
+                          adj->ia_link,
+                          FIB_FORW_CHAIN_TYPE_MPLS_EOS,
+                          &dpo);
 
-	adj_nbr_midchain_stack(ai, &dpo);
-	dpo_reset(&dpo);
+        adj_nbr_midchain_stack(ai, &dpo);
+        dpo_reset(&dpo);
     }
     else
     {
-	adj_nbr_midchain_unstack(ai);
+        adj_nbr_midchain_unstack(ai);
     }
+
+    mt->mt_sibling_index = fib_path_list_child_add(mt->mt_path_list,
+                                                   FIB_NODE_TYPE_MPLS_TUNNEL,
+                                                   mt - mpls_tunnel_pool);
+
+    fib_path_list_lock(mt->mt_path_list);
 }
 
 /**
@@ -207,7 +292,7 @@ mpls_tunnel_stack (adj_index_t ai)
  */
 static adj_walk_rc_t
 mpls_adj_walk_cb (adj_index_t ai,
-		 void *ctx)
+                 void *ctx)
 {
     mpls_tunnel_stack(ai);
 
@@ -224,17 +309,17 @@ mpls_tunnel_restack (mpls_tunnel_t *mt)
      */
     FOR_EACH_FIB_PROTOCOL(proto)
     {
-	adj_nbr_walk(mt->mt_sw_if_index,
-		     proto,
-		     mpls_adj_walk_cb,
-		     NULL);
+        adj_nbr_walk(mt->mt_sw_if_index,
+                     proto,
+                     mpls_adj_walk_cb,
+                     NULL);
     }
 }
 
 static clib_error_t *
 mpls_tunnel_admin_up_down (vnet_main_t * vnm,
-			   u32 hw_if_index,
-			   u32 flags)
+                           u32 hw_if_index,
+                           u32 flags)
 {
     vnet_hw_interface_t * hi;
     mpls_tunnel_t *mt;
@@ -244,13 +329,13 @@ mpls_tunnel_admin_up_down (vnet_main_t * vnm,
     mt = mpls_tunnel_get_from_sw_if_index(hi->sw_if_index);
 
     if (NULL == mt)
-	return (NULL);
+        return (NULL);
 
     if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
-	vnet_hw_interface_set_flags (vnm, hw_if_index,
-				     VNET_HW_INTERFACE_FLAG_LINK_UP);
+        vnet_hw_interface_set_flags (vnm, hw_if_index,
+                                     VNET_HW_INTERFACE_FLAG_LINK_UP);
     else
-	vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */);
+        vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */);
 
     mpls_tunnel_restack(mt);
 
@@ -263,22 +348,58 @@ mpls_tunnel_admin_up_down (vnet_main_t * vnm,
  */
 static void
 mpls_tunnel_fixup (vlib_main_t *vm,
-		   ip_adjacency_t *adj,
-		   vlib_buffer_t *b0)
+                   ip_adjacency_t *adj,
+                   vlib_buffer_t *b0)
 {
+    /*
+     * A no-op w.r.t. the header. but reset the 'have we pushed any
+     * MPLS labels onto the packet' flag. That way when we enter the
+     * tunnel we'll get a TTL set to 255
+     */
+    vnet_buffer(b0)->mpls.first = 0;
 }
 
 static void
 mpls_tunnel_update_adj (vnet_main_t * vnm,
-			u32 sw_if_index,
-			adj_index_t ai)
+                        u32 sw_if_index,
+                        adj_index_t ai)
 {
-    adj_nbr_midchain_update_rewrite(
-	ai, mpls_tunnel_fixup, 
-	ADJ_FLAG_NONE,
-	mpls_tunnel_build_rewrite(vnm, sw_if_index,
-				  adj_get_link_type(ai),
-				  NULL));
+    ip_adjacency_t *adj;
+
+    ASSERT(ADJ_INDEX_INVALID != ai);
+
+    adj = adj_get(ai);
+
+    switch (adj->lookup_next_index)
+    {
+    case IP_LOOKUP_NEXT_ARP:
+    case IP_LOOKUP_NEXT_GLEAN:
+        adj_nbr_midchain_update_rewrite(ai, mpls_tunnel_fixup,
+                                        ADJ_FLAG_NONE,
+                                        mpls_tunnel_build_rewrite_i());
+        break;
+    case IP_LOOKUP_NEXT_MCAST:
+        /*
+         * Construct a partial rewrite from the known ethernet mcast dest MAC
+         * There's no MAC fixup, so the last 2 parameters are 0
+         */
+        adj_mcast_midchain_update_rewrite(ai, mpls_tunnel_fixup,
+                                          ADJ_FLAG_NONE,
+                                          mpls_tunnel_build_rewrite_i(),
+                                          0, 0);
+        break;
+
+    case IP_LOOKUP_NEXT_DROP:
+    case IP_LOOKUP_NEXT_PUNT:
+    case IP_LOOKUP_NEXT_LOCAL:
+    case IP_LOOKUP_NEXT_REWRITE:
+    case IP_LOOKUP_NEXT_MIDCHAIN:
+    case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
+    case IP_LOOKUP_NEXT_ICMP_ERROR:
+    case IP_LOOKUP_N_NEXT:
+      ASSERT (0);
+      break;
+    }
 
     mpls_tunnel_stack(ai);
 }
@@ -312,7 +433,7 @@ typedef struct mpls_tunnel_trace_t_
 
 static u8 *
 format_mpls_tunnel_tx_trace (u8 * s,
-			     va_list * args)
+                             va_list * args)
 {
   CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
   CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
@@ -327,8 +448,8 @@ format_mpls_tunnel_tx_trace (u8 * s,
  */
 static uword
 mpls_tunnel_tx (vlib_main_t * vm,
-		vlib_node_runtime_t * node,
-		vlib_frame_t * frame)
+                vlib_node_runtime_t * node,
+                vlib_frame_t * frame)
 {
   u32 next_index;
   u32 * from, * to_next, n_left_from, n_left_to_next;
@@ -355,32 +476,32 @@ mpls_tunnel_tx (vlib_main_t * vm,
        * FIXME DUAL LOOP
        */
       while (n_left_from > 0 && n_left_to_next > 0)
-	{
-	  vlib_buffer_t * b0;
-	  u32 bi0;
+        {
+          vlib_buffer_t * b0;
+          u32 bi0;
 
-	  bi0 = from[0];
-	  to_next[0] = bi0;
-	  from += 1;
-	  to_next += 1;
-	  n_left_from -= 1;
-	  n_left_to_next -= 1;
+          bi0 = from[0];
+          to_next[0] = bi0;
+          from += 1;
+          to_next += 1;
+          n_left_from -= 1;
+          n_left_to_next -= 1;
 
-	  b0 = vlib_get_buffer(vm, bi0);
+          b0 = vlib_get_buffer(vm, bi0);
 
-	  vnet_buffer(b0)->ip.adj_index[VLIB_TX] = mt->mt_l2_adj;
+          vnet_buffer(b0)->ip.adj_index[VLIB_TX] = mt->mt_l2_adj;
 
-	  if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
-	    {
-	      mpls_tunnel_trace_t *tr = vlib_add_trace (vm, node,
-						   b0, sizeof (*tr));
-	      tr->tunnel_id = rd->dev_instance;
-	    }
+          if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+            {
+              mpls_tunnel_trace_t *tr = vlib_add_trace (vm, node,
+                                                   b0, sizeof (*tr));
+              tr->tunnel_id = rd->dev_instance;
+            }
 
-	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
-					   to_next, n_left_to_next,
-					   bi0, mt->mt_l2_tx_arc);
-	}
+          vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+                                           to_next, n_left_to_next,
+                                           bi0, mt->mt_l2_tx_arc);
+        }
 
       vlib_put_next_frame (vm, node, next_index, n_left_to_next);
     }
@@ -417,13 +538,13 @@ mpls_tunnel_get (u32 mti)
  */
 void
 mpls_tunnel_walk (mpls_tunnel_walk_cb_t cb,
-		  void *ctx)
+                  void *ctx)
 {
     u32 mti;
 
     pool_foreach_index(mti, mpls_tunnel_pool,
     ({
-	cb(mti, ctx);
+        cb(mti, ctx);
     }));
 }
 
@@ -435,25 +556,22 @@ vnet_mpls_tunnel_del (u32 sw_if_index)
     mt = mpls_tunnel_get_from_sw_if_index(sw_if_index);
 
     if (NULL == mt)
-	return;
-    
-    fib_path_list_child_remove(mt->mt_path_list,
-			       mt->mt_sibling_index);
-    if (ADJ_INDEX_INVALID != mt->mt_l2_adj)
-	adj_unlock(mt->mt_l2_adj);
+        return;
 
-    vec_free(mt->mt_label_stack);
+    if (FIB_NODE_INDEX_INVALID != mt->mt_path_list)
+        fib_path_list_child_remove(mt->mt_path_list,
+                                   mt->mt_sibling_index);
+    if (ADJ_INDEX_INVALID != mt->mt_l2_adj)
+        adj_unlock(mt->mt_l2_adj);
 
     vec_add1 (mpls_tunnel_free_hw_if_indices, mt->mt_hw_if_index);
     pool_put(mpls_tunnel_pool, mt);
     mpls_tunnel_db[sw_if_index] = ~0;
 }
 
-void
-vnet_mpls_tunnel_add (fib_route_path_t *rpaths,
-		      mpls_label_t *label_stack,
-		      u8 l2_only,
-		      u32 *sw_if_index)
+u32
+vnet_mpls_tunnel_create (u8 l2_only,
+                         u8 is_multicast)
 {
     vnet_hw_interface_t * hi;
     mpls_tunnel_t *mt;
@@ -466,28 +584,33 @@ vnet_mpls_tunnel_add (fib_route_path_t *rpaths,
     mti = mt - mpls_tunnel_pool;
     fib_node_init(&mt->mt_node, FIB_NODE_TYPE_MPLS_TUNNEL);
     mt->mt_l2_adj = ADJ_INDEX_INVALID;
+    mt->mt_path_list = FIB_NODE_INDEX_INVALID;
+    mt->mt_sibling_index = FIB_NODE_INDEX_INVALID;
+
+    if (is_multicast)
+        mt->mt_flags |= MPLS_TUNNEL_FLAG_MCAST;
 
     /*
      * Create a new, or re=use and old, tunnel HW interface
      */
     if (vec_len (mpls_tunnel_free_hw_if_indices) > 0)
     {
-	mt->mt_hw_if_index = 
-	    mpls_tunnel_free_hw_if_indices[vec_len(mpls_tunnel_free_hw_if_indices)-1];
-	_vec_len (mpls_tunnel_free_hw_if_indices) -= 1;
-	hi = vnet_get_hw_interface (vnm, mt->mt_hw_if_index);
-	hi->hw_instance = mti;
-	hi->dev_instance = mti;
+        mt->mt_hw_if_index =
+            mpls_tunnel_free_hw_if_indices[vec_len(mpls_tunnel_free_hw_if_indices)-1];
+        _vec_len (mpls_tunnel_free_hw_if_indices) -= 1;
+        hi = vnet_get_hw_interface (vnm, mt->mt_hw_if_index);
+        hi->hw_instance = mti;
+        hi->dev_instance = mti;
     }
-    else 
+    else
     {
-	mt->mt_hw_if_index = vnet_register_interface(
-	                         vnm,
-				 mpls_tunnel_class.index,
-				 mti,
-				 mpls_tunnel_hw_interface_class.index,
-				 mti);
-	hi = vnet_get_hw_interface(vnm, mt->mt_hw_if_index);
+        mt->mt_hw_if_index = vnet_register_interface(
+                                 vnm,
+                                 mpls_tunnel_class.index,
+                                 mti,
+                                 mpls_tunnel_hw_interface_class.index,
+                                 mti);
+        hi = vnet_get_hw_interface(vnm, mt->mt_hw_if_index);
     }
 
     /*
@@ -497,43 +620,218 @@ vnet_mpls_tunnel_add (fib_route_path_t *rpaths,
     vec_validate_init_empty(mpls_tunnel_db, mt->mt_sw_if_index, ~0);
     mpls_tunnel_db[mt->mt_sw_if_index] = mti;
 
+    if (l2_only)
+    {
+        mt->mt_l2_adj =
+            adj_nbr_add_or_lock(fib_path_list_get_proto(mt->mt_path_list),
+                                VNET_LINK_ETHERNET,
+                                &zero_addr,
+                                mt->mt_sw_if_index);
+
+        mt->mt_l2_tx_arc = vlib_node_add_named_next(vlib_get_main(),
+                                                    hi->tx_node_index,
+                                                    "adj-l2-midchain");
+    }
+
+    return (mt->mt_sw_if_index);
+}
+
+/*
+ * mpls_tunnel_path_ext_add
+ *
+ * append a path extension to the entry's list
+ */
+static void
+mpls_tunnel_path_ext_append (mpls_tunnel_t *mt,
+                             const fib_route_path_t *rpath)
+{
+    if (NULL != rpath->frp_label_stack)
+    {
+        fib_path_ext_t *path_ext;
+
+        vec_add2(mt->mt_path_exts, path_ext, 1);
+
+        fib_path_ext_init(path_ext, mt->mt_path_list, rpath);
+    }
+}
+
+/*
+ * mpls_tunnel_path_ext_insert
+ *
+ * insert, sorted, a path extension to the entry's list.
+ * It's not strictly necessary in sort the path extensions, since each
+ * extension has the path index to which it resolves. However, by being
+ * sorted the load-balance produced has a deterministic order, not an order
+ * based on the sequence of extension additions. this is a considerable benefit.
+ */
+static void
+mpls_tunnel_path_ext_insert (mpls_tunnel_t *mt,
+                             const fib_route_path_t *rpath)
+{
+    if (0 == vec_len(mt->mt_path_exts))
+        return (mpls_tunnel_path_ext_append(mt, rpath));
+
+    if (NULL != rpath->frp_label_stack)
+    {
+        fib_path_ext_t path_ext;
+        int i = 0;
+
+        fib_path_ext_init(&path_ext, mt->mt_path_list, rpath);
+
+        while (i < vec_len(mt->mt_path_exts) &&
+               (fib_path_ext_cmp(&mt->mt_path_exts[i], rpath) < 0))
+        {
+            i++;
+        }
+
+        vec_insert_elts(mt->mt_path_exts, &path_ext, 1, i);
+    }
+}
+
+void
+vnet_mpls_tunnel_path_add (u32 sw_if_index,
+                           fib_route_path_t *rpaths)
+{
+    mpls_tunnel_t *mt;
+    u32 mti;
+
+    mt = mpls_tunnel_get_from_sw_if_index(sw_if_index);
+
+    if (NULL == mt)
+        return;
+
+    mti = mt - mpls_tunnel_pool;
+
     /*
      * construct a path-list from the path provided
      */
-    mt->mt_path_list = fib_path_list_create(FIB_PATH_LIST_FLAG_SHARED, rpaths);
-    mt->mt_sibling_index = fib_path_list_child_add(mt->mt_path_list,
-						   FIB_NODE_TYPE_MPLS_TUNNEL,
-						   mti);
+    if (FIB_NODE_INDEX_INVALID == mt->mt_path_list)
+    {
+        mt->mt_path_list = fib_path_list_create(FIB_PATH_LIST_FLAG_SHARED, rpaths);
+        mt->mt_sibling_index = fib_path_list_child_add(mt->mt_path_list,
+                                                       FIB_NODE_TYPE_MPLS_TUNNEL,
+                                                       mti);
+    }
+    else
+    {
+        fib_node_index_t old_pl_index;
+        fib_path_ext_t *path_ext;
+
+        old_pl_index = mt->mt_path_list;
+
+        mt->mt_path_list =
+            fib_path_list_copy_and_path_add(old_pl_index,
+                                            FIB_PATH_LIST_FLAG_SHARED,
+                                            rpaths);
+
+        fib_path_list_child_remove(old_pl_index,
+                                   mt->mt_sibling_index);
+        mt->mt_sibling_index = fib_path_list_child_add(mt->mt_path_list,
+                                                       FIB_NODE_TYPE_MPLS_TUNNEL,
+                                                       mti);
+        /*
+         * re-resolve all the path-extensions with the new path-list
+         */
+        vec_foreach(path_ext, mt->mt_path_exts)
+        {
+            fib_path_ext_resolve(path_ext, mt->mt_path_list);
+        }
+    }
+    mpls_tunnel_path_ext_insert(mt, rpaths);
+    mpls_tunnel_restack(mt);
+}
+
+int
+vnet_mpls_tunnel_path_remove (u32 sw_if_index,
+                              fib_route_path_t *rpaths)
+{
+    mpls_tunnel_t *mt;
+    u32 mti;
 
-    mt->mt_label_stack = vec_dup(label_stack);
+    mt = mpls_tunnel_get_from_sw_if_index(sw_if_index);
 
-    if (l2_only)
+    if (NULL == mt)
+        return (0);
+
+    mti = mt - mpls_tunnel_pool;
+
+    /*
+     * construct a path-list from the path provided
+     */
+    if (FIB_NODE_INDEX_INVALID == mt->mt_path_list)
     {
-	mt->mt_l2_adj =
-	    adj_nbr_add_or_lock(fib_path_list_get_proto(mt->mt_path_list),
-				VNET_LINK_ETHERNET,
-				&zero_addr,
-				mt->mt_sw_if_index);
-
-	mt->mt_l2_tx_arc = vlib_node_add_named_next(vlib_get_main(),
-						    hi->tx_node_index,
-						    "adj-l2-midchain");
+        /* can't remove a path if we have onoe */
+        return (0);
     }
-
-    *sw_if_index = mt->mt_sw_if_index;
+    else
+    {
+        fib_node_index_t old_pl_index;
+        fib_path_ext_t *path_ext;
+
+        old_pl_index = mt->mt_path_list;
+
+        mt->mt_path_list =
+            fib_path_list_copy_and_path_remove(old_pl_index,
+                                               FIB_PATH_LIST_FLAG_SHARED,
+                                               rpaths);
+
+        fib_path_list_child_remove(old_pl_index,
+                                   mt->mt_sibling_index);
+
+        if (FIB_NODE_INDEX_INVALID == mt->mt_path_list)
+        {
+            /* no paths left */
+            return (0);
+        }
+        else
+        {
+            mt->mt_sibling_index =
+                fib_path_list_child_add(mt->mt_path_list,
+                                        FIB_NODE_TYPE_MPLS_TUNNEL,
+                                        mti);
+        }
+        /*
+         * find the matching path extension and remove it
+         */
+        vec_foreach(path_ext, mt->mt_path_exts)
+        {
+            if (!fib_path_ext_cmp(path_ext, rpaths))
+            {
+                /*
+                 * delete the element moving the remaining elements down 1 position.
+                 * this preserves the sorted order.
+                 */
+                vec_free(path_ext->fpe_label_stack);
+                vec_delete(mt->mt_path_exts, 1,
+                           (path_ext - mt->mt_path_exts));
+                break;
+            }
+        }
+       /*
+         * re-resolve all the path-extensions with the new path-list
+         */
+        vec_foreach(path_ext, mt->mt_path_exts)
+        {
+            fib_path_ext_resolve(path_ext, mt->mt_path_list);
+        }
+
+        mpls_tunnel_restack(mt);
+   }
+
+    return (fib_path_list_get_n_paths(mt->mt_path_list));
 }
 
+
 static clib_error_t *
 vnet_create_mpls_tunnel_command_fn (vlib_main_t * vm,
-				    unformat_input_t * input,
-				    vlib_cli_command_t * cmd)
+                                    unformat_input_t * input,
+                                    vlib_cli_command_t * cmd)
 {
     unformat_input_t _line_input, * line_input = &_line_input;
     vnet_main_t * vnm = vnet_get_main();
-    u8 is_del = 0;
-    u8 l2_only = 0;
+    u8 is_del = 0, l2_only = 0, is_multicast =0;
     fib_route_path_t rpath, *rpaths = NULL;
-    mpls_label_t out_label = MPLS_LABEL_INVALID, *labels = NULL;
+    mpls_label_t out_label = MPLS_LABEL_INVALID;
     u32 sw_if_index;
     clib_error_t *error = NULL;
 
@@ -541,87 +839,89 @@ vnet_create_mpls_tunnel_command_fn (vlib_main_t * vm,
 
     /* Get a line of input. */
     if (! unformat_user (input, unformat_line_input, line_input))
-	return 0;
+        return 0;
 
     while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
     {
-	if (unformat (line_input, "del %U",
-		      unformat_vnet_sw_interface, vnm,
-		      &sw_if_index))
-	    is_del = 1;
-	else if (unformat (line_input, "add"))
-	    is_del = 0;
-	else if (unformat (line_input, "out-label %U",
-			   unformat_mpls_unicast_label, &out_label))
-	{
-	    vec_add1(labels, out_label);
-	}
-	else if (unformat (line_input, "via %U %U",
-			   unformat_ip4_address,
-			   &rpath.frp_addr.ip4,
-			   unformat_vnet_sw_interface, vnm,
-			   &rpath.frp_sw_if_index))
-	{
-	    rpath.frp_weight = 1;
-	    rpath.frp_proto = FIB_PROTOCOL_IP4;
-	}
-			 
-	else if (unformat (line_input, "via %U %U",
-			   unformat_ip6_address,
-			   &rpath.frp_addr.ip6,
-			   unformat_vnet_sw_interface, vnm,
-			   &rpath.frp_sw_if_index))
-	{
-	    rpath.frp_weight = 1;
-	    rpath.frp_proto = FIB_PROTOCOL_IP6;
-	}
-	else if (unformat (line_input, "via %U",
-			   unformat_ip6_address,
-			   &rpath.frp_addr.ip6))
-	{
-	    rpath.frp_fib_index = 0;
-	    rpath.frp_weight = 1;
-	    rpath.frp_sw_if_index = ~0;
-	    rpath.frp_proto = FIB_PROTOCOL_IP6;
-	}
-	else if (unformat (line_input, "via %U",
-			   unformat_ip4_address,
-			   &rpath.frp_addr.ip4))
-	{
-	    rpath.frp_fib_index = 0;
-	    rpath.frp_weight = 1;
-	    rpath.frp_sw_if_index = ~0;
-	    rpath.frp_proto = FIB_PROTOCOL_IP4;
-	}
-	else if (unformat (line_input, "l2-only"))
-	    l2_only = 1;
-	else
-	{
-	    error = clib_error_return (0, "unknown input '%U'",
-				       format_unformat_error, line_input);
-	    goto done;
-	}
+        if (unformat (line_input, "del %U",
+                      unformat_vnet_sw_interface, vnm,
+                      &sw_if_index))
+            is_del = 1;
+        else if (unformat (line_input, "add"))
+            is_del = 0;
+        else if (unformat (line_input, "out-label %U",
+                           unformat_mpls_unicast_label, &out_label))
+        {
+            vec_add1(rpath.frp_label_stack, out_label);
+        }
+        else if (unformat (line_input, "via %U %U",
+                           unformat_ip4_address,
+                           &rpath.frp_addr.ip4,
+                           unformat_vnet_sw_interface, vnm,
+                           &rpath.frp_sw_if_index))
+        {
+            rpath.frp_weight = 1;
+            rpath.frp_proto = FIB_PROTOCOL_IP4;
+        }
+
+        else if (unformat (line_input, "via %U %U",
+                           unformat_ip6_address,
+                           &rpath.frp_addr.ip6,
+                           unformat_vnet_sw_interface, vnm,
+                           &rpath.frp_sw_if_index))
+        {
+            rpath.frp_weight = 1;
+            rpath.frp_proto = FIB_PROTOCOL_IP6;
+        }
+        else if (unformat (line_input, "via %U",
+                           unformat_ip6_address,
+                           &rpath.frp_addr.ip6))
+        {
+            rpath.frp_fib_index = 0;
+            rpath.frp_weight = 1;
+            rpath.frp_sw_if_index = ~0;
+            rpath.frp_proto = FIB_PROTOCOL_IP6;
+        }
+        else if (unformat (line_input, "via %U",
+                           unformat_ip4_address,
+                           &rpath.frp_addr.ip4))
+        {
+            rpath.frp_fib_index = 0;
+            rpath.frp_weight = 1;
+            rpath.frp_sw_if_index = ~0;
+            rpath.frp_proto = FIB_PROTOCOL_IP4;
+        }
+        else if (unformat (line_input, "l2-only"))
+            l2_only = 1;
+        else if (unformat (line_input, "multicast"))
+            is_multicast = 1;
+        else
+        {
+            error = clib_error_return (0, "unknown input '%U'",
+                                       format_unformat_error, line_input);
+            goto done;
+        }
     }
 
     if (is_del)
     {
-	vnet_mpls_tunnel_del(sw_if_index);
+        vnet_mpls_tunnel_del(sw_if_index);
     }
     else
     {
-	if (0 == vec_len(labels))
-	{
-	    error = clib_error_return (0, "No Output Labels '%U'",
-				       format_unformat_error, line_input);
-	    goto done;
-	}
-
-	vec_add1(rpaths, rpath);
-	vnet_mpls_tunnel_add(rpaths, labels, l2_only, &sw_if_index);
+        if (0 == vec_len(rpath.frp_label_stack))
+        {
+            error = clib_error_return (0, "No Output Labels '%U'",
+                                       format_unformat_error, line_input);
+            goto done;
+        }
+
+        vec_add1(rpaths, rpath);
+        sw_if_index = vnet_mpls_tunnel_create(l2_only, is_multicast);
+        vnet_mpls_tunnel_path_add(sw_if_index, rpaths);
     }
 
 done:
-    vec_free(labels);
     vec_free(rpaths);
     unformat_free (line_input);
 
@@ -638,7 +938,7 @@ done:
  ?*/
 VLIB_CLI_COMMAND (create_mpls_tunnel_command, static) = {
   .path = "mpls tunnel",
-  .short_help = 
+  .short_help =
   "mpls tunnel via [addr] [interface] [out-labels]",
   .function = vnet_create_mpls_tunnel_command_fn,
 };
@@ -647,19 +947,28 @@ static u8 *
 format_mpls_tunnel (u8 * s, va_list * args)
 {
     mpls_tunnel_t *mt = va_arg (*args, mpls_tunnel_t *);
-    int ii;
+    mpls_tunnel_attribute_t attr;
+    fib_path_ext_t *path_ext;
 
     s = format(s, "mpls_tunnel%d: sw_if_index:%d hw_if_index:%d",
-	       mt - mpls_tunnel_pool,
-	       mt->mt_sw_if_index,
-	       mt->mt_hw_if_index);
-    s = format(s, "\n label-stack:\n  ");
-    for (ii = 0; ii < vec_len(mt->mt_label_stack); ii++)
-    {
-	s = format(s, "%d, ", mt->mt_label_stack[ii]);
+               mt - mpls_tunnel_pool,
+               mt->mt_sw_if_index,
+               mt->mt_hw_if_index);
+    if (MPLS_TUNNEL_FLAG_NONE != mt->mt_flags) {
+        s = format(s, " \n flags:");
+        FOR_EACH_MPLS_TUNNEL_ATTRIBUTE(attr) {
+            if ((1<<attr) & mt->mt_flags) {
+                s = format (s, "%s,", mpls_tunnel_attribute_names[attr]);
+            }
+        }
     }
     s = format(s, "\n via:\n");
     s = fib_path_list_format(mt->mt_path_list, s);
+    s = format(s, "    Extensions:");
+    vec_foreach(path_ext, mt->mt_path_exts)
+    {
+        s = format(s, "\n     %U", format_fib_path_ext, path_ext);
+    }
     s = format(s, "\n");
 
     return (s);
@@ -667,42 +976,42 @@ format_mpls_tunnel (u8 * s, va_list * args)
 
 static clib_error_t *
 show_mpls_tunnel_command_fn (vlib_main_t * vm,
-			     unformat_input_t * input,
-			     vlib_cli_command_t * cmd)
+                             unformat_input_t * input,
+                             vlib_cli_command_t * cmd)
 {
     mpls_tunnel_t * mt;
     u32 mti = ~0;
 
     if (pool_elts (mpls_tunnel_pool) == 0)
-	vlib_cli_output (vm, "No MPLS tunnels configured...");
+        vlib_cli_output (vm, "No MPLS tunnels configured...");
 
     while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
     {
-	if (unformat (input, "%d", &mti))
-	    ;
-	else
-	    break;
+        if (unformat (input, "%d", &mti))
+            ;
+        else
+            break;
     }
 
     if (~0 == mti)
     {
-	pool_foreach (mt, mpls_tunnel_pool,
-	({
-	    vlib_cli_output (vm, "[@%d] %U",
-			     mt - mpls_tunnel_pool,
-			     format_mpls_tunnel, mt);
-	}));
+        pool_foreach (mt, mpls_tunnel_pool,
+        ({
+            vlib_cli_output (vm, "[@%d] %U",
+                             mt - mpls_tunnel_pool,
+                             format_mpls_tunnel, mt);
+        }));
     }
     else
     {
-	if (pool_is_free_index(mpls_tunnel_pool, mti))
-	    return clib_error_return (0, "Not atunnel index %d", mti);
+        if (pool_is_free_index(mpls_tunnel_pool, mti))
+            return clib_error_return (0, "Not atunnel index %d", mti);
 
-	mt = pool_elt_at_index(mpls_tunnel_pool, mti);
+        mt = pool_elt_at_index(mpls_tunnel_pool, mti);
 
-	vlib_cli_output (vm, "[@%d] %U",
-			 mt - mpls_tunnel_pool,
-			 format_mpls_tunnel, mt);
+        vlib_cli_output (vm, "[@%d] %U",
+                         mt - mpls_tunnel_pool,
+                         format_mpls_tunnel, mt);
     }
 
     return 0;
@@ -715,7 +1024,7 @@ show_mpls_tunnel_command_fn (vlib_main_t * vm,
  * @cliexstart{sh mpls tunnel 2}
  * [@2] mpls_tunnel2: sw_if_index:5 hw_if_index:5
  *  label-stack:
- *    3, 
+ *    3,
  *  via:
  *   index:26 locks:1 proto:ipv4 uPRF-list:26 len:1 itfs:[2, ]
  *     index:26 pl-index:26 ipv4 weight=1 attached-nexthop:  oper-flags:resolved,
@@ -743,7 +1052,7 @@ mpls_tunnel_from_fib_node (fib_node_t *node)
  */
 static fib_node_back_walk_rc_t
 mpls_tunnel_back_walk (fib_node_t *node,
-		      fib_node_back_walk_ctx_t *ctx)
+                      fib_node_back_walk_ctx_t *ctx)
 {
     mpls_tunnel_restack(mpls_tunnel_from_fib_node(node));
 
diff --git a/src/vnet/mpls/mpls_tunnel.h b/src/vnet/mpls/mpls_tunnel.h
index ee56c0fc8e3..0b55d0dbe3d 100644
--- a/src/vnet/mpls/mpls_tunnel.h
+++ b/src/vnet/mpls/mpls_tunnel.h
@@ -17,6 +17,31 @@
 #define __MPLS_TUNNEL_H__
 
 #include <vnet/mpls/mpls.h>
+#include <vnet/fib/fib_path_ext.h>
+
+typedef enum mpls_tunnel_attribute_t_
+{
+    MPLS_TUNNEL_ATTRIBUTE_FIRST = 0,
+    /**
+     * @brief The tunnel has an underlying multicast LSP
+     */
+    MPLS_TUNNEL_ATTRIBUTE_MCAST = MPLS_TUNNEL_ATTRIBUTE_FIRST,
+    MPLS_TUNNEL_ATTRIBUTE_LAST = MPLS_TUNNEL_ATTRIBUTE_MCAST,
+} mpls_tunnel_attribute_t;
+
+#define MPLS_TUNNEL_ATTRIBUTES {		  \
+    [MPLS_TUNNEL_ATTRIBUTE_MCAST]  = "multicast", \
+}
+#define FOR_EACH_MPLS_TUNNEL_ATTRIBUTE(_item)		\
+    for (_item = MPLS_TUNNEL_ATTRIBUTE_FIRST;		\
+	 _item < MPLS_TUNNEL_ATTRIBUTE_LAST;		\
+	 _item++)
+
+typedef enum mpls_tunnel_flag_t_ {
+    MPLS_TUNNEL_FLAG_NONE   = 0,
+    MPLS_TUNNEL_FLAG_MCAST  = (1 << MPLS_TUNNEL_ATTRIBUTE_MCAST),
+} __attribute__ ((packed)) mpls_tunnel_flags_t;
+
 
 /**
  * @brief A uni-directional MPLS tunnel
@@ -29,6 +54,11 @@ typedef struct mpls_tunnel_t_
     fib_node_t mt_node;
 
     /**
+     * @brief Tunnel flags
+     */
+    mpls_tunnel_flags_t mt_flags;
+
+    /**
      * @brief If the tunnel is an L2 tunnel, this is the link type ETHERNET
      * adjacency
      */
@@ -50,9 +80,9 @@ typedef struct mpls_tunnel_t_
     u32 mt_sibling_index;
 
     /**
-     * @brief The Label stack to apply to egress packets
+     * A vector of path extensions o hold the label stack for each path
      */
-    mpls_label_t *mt_label_stack;
+    fib_path_ext_t *mt_path_exts;
 
     /**
      * @brief Flag to indicate the tunnel is only for L2 traffic, that is
@@ -74,12 +104,27 @@ typedef struct mpls_tunnel_t_
 
 /**
  * @brief Create a new MPLS tunnel
+ * @return the SW Interface index of the newly created tuneel
  */
-extern void vnet_mpls_tunnel_add (fib_route_path_t *rpath,
-				  mpls_label_t *label_stack,
-				  u8 l2_only,
-				  u32 *sw_if_index);
+extern u32 vnet_mpls_tunnel_create (u8 l2_only,
+                                    u8 is_multicast);
 
+/**
+ * @brief Add a path to an MPLS tunnel
+ */
+extern void vnet_mpls_tunnel_path_add (u32 sw_if_index,
+                                       fib_route_path_t *rpath);
+
+/**
+ * @brief remove a path from a tunnel.
+ * @return the number of remaining paths. 0 implies the tunnel can be deleted
+ */
+extern int vnet_mpls_tunnel_path_remove (u32 sw_if_index,
+                                         fib_route_path_t *rpath);
+
+/**
+ * @brief Delete an MPLS tunnel
+ */
 extern void vnet_mpls_tunnel_del (u32 sw_if_index);
 
 extern const mpls_tunnel_t *mpls_tunnel_get(u32 index);
diff --git a/src/vnet/mpls/mpls_types.h b/src/vnet/mpls/mpls_types.h
index d7c629df832..b1075cdda57 100644
--- a/src/vnet/mpls/mpls_types.h
+++ b/src/vnet/mpls/mpls_types.h
@@ -1,3 +1,17 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 #ifndef __MPLS_TYPES_H__
 #define __MPLS_TYPES_H__
 
@@ -36,4 +50,10 @@
     (((_lbl) > MPLS_IETF_MIN_UNRES_LABEL) &&	\
      ((_lbl) <= MPLS_IETF_MAX_UNRES_LABEL))
 
+/**
+ * The top bit of the index, which is the result of the MPLS lookup
+ * is used to determine if the DPO is a load-balance or a replicate
+ */
+#define MPLS_IS_REPLICATE 0x80000000
+
 #endif
diff --git a/src/vnet/srp/interface.c b/src/vnet/srp/interface.c
index d427cc3c523..44e2b0d6460 100644
--- a/src/vnet/srp/interface.c
+++ b/src/vnet/srp/interface.c
@@ -58,7 +58,7 @@ srp_build_rewrite (vnet_main_t * vnm,
 #define _(a,b) case VNET_LINK_##a: type = ETHERNET_TYPE_##b; break
     _ (IP4, IP4);
     _ (IP6, IP6);
-    _ (MPLS, MPLS_UNICAST);
+    _ (MPLS, MPLS);
     _ (ARP, ARP);
 #undef _
   default: