NEIGHBOR RESOLUTION FOR REMOTE EVPN HOSTS IN IPV6 EVPN ENVIRONMENT

The techniques described herein may enable a particular PE router configured in an EVPN to share, rather than immediately discard, a CE router MAC address that is included in an IPv6 neighbor advertisement even though the particular PE router does not include a neighbor cache entry corresponding to the CE router. The techniques may include receiving, from a CE router that is locally coupled to the first PE router, an IPv6 neighbor advertisement from the CE router in response to an IPv6 neighbor solicitation from a second PE router that requested a MAC address of the CE router; determining whether an L2 destination addresses of the IPv6 neighbor advertisement match the L2 address of the bridging interface second PE router; and in response to determining a match, sending, to the second PE router, an EVPN route advertisement specifying at least the MAC address of the CE router.