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>

1 files changed, 3 insertions, 12 deletions

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);