The Ethernet VPN (EVPN) multihoming is RFC 7432, RFC 8365 based industry-standard Layer 2 multipath solution solving various traditional networking protocol challenges impacting scale, performance and resiliency. It is an advanced networking technology designed to provide high availability, Border Gateway Protocol (BGP) based Layer 2 loop-free network, and efficient load balancing in modern enterprise campus networks.

A pair of Cisco Catalyst 9000 series switches can connect to downstream Layer 2 or Layer 3 network device with local physical connection binding into single logical EtherChannel configured in Layer 2 trunk or access mode. With industry-standard non-blocking architecture, any downstream networking devices such as, Ethernet Switch, Wireless LAN Controller (WLC), firewalls, servers and hosts can be dual-homed.