Question

A host in VLAN 10 (mapped to L2VNI 10010) on leaf VTEP-1 sends a broadcast DHCP Discover. The fabric uses BGP EVPN with ingress replication for BUM traffic. Which sequence correctly describes how this broadcast frame reaches a DHCP server attached to leaf VTEP-3?

Accepted Answer

VTEP-1 encapsulates the frame in VXLAN with the L2VNI 10010 and sends a separate unicast copy to each remote VTEP in the ingress-replication list; VTEP-3 decapsulates and floods it to local ports in VLAN 10.

Answer

VTEP-1 forwards the broadcast to the spine, which performs a MAC lookup and unicasts a single copy directly to VTEP-3 based on the DHCP server's MAC address.

Answer

VTEP-1 sends the frame to the multicast group associated with L2VNI 10010, and the spine's rendezvous point replicates it only to VTEP-3.

Answer

VTEP-1 suppresses the broadcast and instead originates an EVPN Type-2 route so VTEP-3 can request the frame via a Type-3 pull.