diff options
| author |   Neale Ranns <nranns@cisco.com> | 2017-03-01 15:12:11 -0800 |
|---|---|---|
| committer | Neale Ranns <nranns@cisco.com> | 2017-04-07 09:12:12 +0000 |
| commit | 0f26c5a0138ac86d7ebd197c31a09d8d624c35fe (patch) | |
| tree | 5cee4659885432c439e44d7346fd5e482df5f0e6 /src/vnet/adj/adj.c | |
| parent | c14f31c2c62fb66d98aef4402a6f1bda09683fd3 (diff) | |
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>
Diffstat (limited to 'src/vnet/adj/adj.c')
| -rw-r--r-- | src/vnet/adj/adj.c | 13 |
1 files changed, 11 insertions, 2 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) = { |