Hi, We have two VMs i.e. VM 1 and VM 2 running VPP. We are configuring localsid and nd proxy corresponding to that localsid on VM1.
sr localsid address 2001:7a0:10::111 behavior end psp set ip6 nd proxy GigabitEthernet0/8/0 2001:7a0:10::111 When packet on VM 2 tries tires to reach VM 1's localsid, we see that a neighbor entry and a fib entry corresponding to that localsid is generated on VM 2 vpp# show ip6 fib 2001:7a0:10::111/128 unicast-ip6-chain [@0]: dpo-load-balance: [proto:ip6 index:15 buckets:1 uRPF:17 to:[4:464]] [0] [@5]: ipv6 via 2001:7a0:10::111 GigabitEthernet0/8/0: mtu:9000 next:3 525400ed7f2052540062079586dd fe80::/10 vpp# show ip6 neighbors Time IP Flags Ethernet Interface 242.5560 2001:7a0:10::111 D 52:54:00:ed:7f:20 GigabitEthernet0/8/0 Whereas, when we tried the same scenario using linux SRv6 we see that only neighbor entry is created on VM 2 for the localsid but route table has nothing corresponding to it. root@ubuntu:~# ip -6 route show ::1 dev lo proto kernel metric 256 pref medium 2001:7a0:10::/64 dev ens8 proto kernel metric 256 pref medium fe80::/64 dev ens8 proto kernel metric 256 pref medium fe80::/64 dev ens3 proto kernel metric 256 pref medium root@ubuntu:~# ip -6 neigh 2001:7a0:10::111 dev ens8 lladdr 52:54:00:5a:9f:9c REACHABLE fe80::5054:ff:fe6f:d8a8 dev ens3 lladdr 52:54:00:6f:d8:a8 STALE fe80::5054:ff:fe5a:9f9c dev ens8 lladdr 52:54:00:5a:9f:9c router REACHABLE root@ubuntu:~# Can anyone please guide us why VPP adds a fib entry for the localsid? T hanks and Regards, Chinmaya Agarwal.
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