Ethernet Segment Identifier (ESI)

← All glossary terms Jump to E

Ethernet Segment Identifier (ESI) – A 10-octet, network-unique value that identifies an Ethernet segment — the set of links connecting a multihomed host to two or more devices in an EVPN topology — used to coordinate forwarding and prevent loops across those links. See: Configure EVPN Multihoming for Hosts Using ZT-LAN, Configure EVPN VXLAN for ZT-LAN