VXLAN EVPN Ingress Replication with BGP
In a VXLAN topology, BGP EVPN can be used to deal with BUM traffic without having to use either static VTEP peer configurations or multicast infrastructure. This can be configured using the ingress-replication protocol bgp command. For example:
interface NVE 1 member vni 10010 ingress-replication protocol bgp
The mechanism works by having BGP EVPN learn VTEP IP addresses dynamically through EVPN route-type 3 advertisements (Inclusive Multicast Ethernet Tag). Each VTEP advertises its reachability information to other VTEPs in the network, allowing peers to automatically populate their NVE peer tables without manual configuration.
This dynamic peer discovery and ingress replication setup simplifies VXLAN deployment by eliminating the need for complex multicast configurations or static VTEP definitions.
Links
https://networklessons.com/vxlan/vxlan-static-ingress-replication
https://networklessons.com/vxlan/vxlan-flood-and-learn-multicast-data-plane