Commits on Oct 11, 2024

1. bgpd: fix evpn mh esi down …

   In symmetric routing, when local ESI is down,
   the MH peer learnt local mac-ip
   prefix is installed into teannt vrf (given l3vni).
   
   When ESI is back up and associated to evi/vni then
   remove the local synced mac-ip imported routes from the
   tenant vrf as local neigh/arp is present.
   
   Ticket: #3878699
   Testing:
   
   peer advertised mac-ip route:
   *> [2]:[0]:[48]:[aa:aa:aa:00:00:01]:[32]:[45.0.0.51] RD 27.0.0.4:9
                       27.0.0.4 (spine-1)
                                                              0 64435 65016 i
                       ESI:03:44:38:39:ff:ff:01:00:00:01
                       RT:65016:1000 RT:65016:4000 ET:8 Rmac:44:38:39:ff:ff:16
   
   When local ESI is flapped
   torm-11:# ip neigh show 45.0.0.51
   45.0.0.51 dev vlan1000 lladdr aa:aa:aa:00:00:01 REACHABLE proto zebra
   
   Before fix:
   (The imported route remained in tenant-vrf)
   torm-11:# ip route show vrf vrf1 45.0.0.51
   45.0.0.51 nhid 257 proto bgp metric 20
   
   After fix:
   
   torm-11# ip route show vrf vrf1 45.0.0.51
   torm-11#
   
   trace:
   2024/10/11 18:19:29 BGP: [JMP3T-178G8] route [2]:[0]:[48]:[00:02:00:00:00:08]:[32]:[21.1.0.5]
   is matched on local esi 03:00:00:00:77:01:04:00:00:0e, uninstall from route table
   
   Signed-off-by: Chirag Shah <[email protected]>

   

   chiragshah6 committed Oct 11, 2024
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