EVPN preferred next-hop for all-active multihoming

The EVPN Preferred Nexthop feature enables an active/backup forwarding model for unicast data traffic on multi-homed PE?s with all-active by selecting a preferred overlay nexthop IP address.

With this feature enabled, the network can achieve fast convergence when the primary PE goes down, by triggering BGP Prefix Independent Convergence [BGP-PIC] functionality in the PFE.