EVPN

Fast reroute for egress link protection in EVPN-VXLAN multihoming environments (EX4400-24MP, EX4400-24P, EX4400-24T, EX4400-48F, EX4400-48MP, EX4400-48P, and EX4400-48T)—Starting in Junos OS Release 22.3R1, you can enable fast reroute egress link protection (ELP) on multihoming peer provider edge (PE) devices with EVPN-VXLAN. Remote sources load balance traffic toward a multihomed customer edge (CE) device by distributing portions of the traffic among the multihoming peer PE devices. This feature minimizes load-balanced traffic loss when a peer PE device’s link to the CE device goes down. The PE device creates a backup VXLAN tunnel called an ELP tunnel. The device uses the ELP tunnel to reroute its portion of the load-balanced traffic to another peer PE device. The device redirects load-balanced traffic on the ELP tunnel until the source routing table converges and the source starts sending the traffic only to the other peer PE devices.

[See Fast Reroute for Egress Link Protection with EVPN-VXLAN Multihoming.]