BGP-EVPN

EVPN Route Targets

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EVPN Route Targets A new keyword is added to the existing route-target configuration to specify the route targets to be used when doing EVPN-VXLAN related processing. The base (existing) route target configuration does not affect EVPN-VXLAN related processing. You can have the same RT values for both base and vxlan routes MAC/IP Advertisement Route and IP Prefix Route is supported. The l2vpn evpn address-family can be configured and neighbors can exchange EVPN NLRI. The l2vpn-evpn-prefix-advertisement…

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RFC-EVPN Route Types

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Route Type Description RFC Route Type Explained 0 Reserved RFC 7432 1 Ethernet Auto-Discovery (A-D) route RFC 7432 EVPN Type 1 Explained 2 MAC/IP advertisement route RFC 7432 EVPN Type 2 Explained 3 Inclusive Multicast Route RFC 7432 EVPN Type 3 Explained 4 Ethernet Segment Route RFC 7432 EVPN Type 4 Explained 5 IP Prefix Route draft-ietf-bess-evpn-prefix-advertisement-04 EVPN Type 5 Explained 6 Selective Multicast Ethernet Tag Route draft-ietf-bess-evpn-igmp-mld-proxy-00 EVPN Type 6 Explained 7 IGMP Join…

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EVPN advertisements is Type 2

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The most common type of EVPN advertisements is Type 2 messages. These messages are MAC address advertisements. Each VTEP advertises any MAC address learned in its MAC and IP Neighbor table into BGP as a Type 2 EVPN advertisement. Then BGP transfers all these messages across all routing members so that every VTEP knows which MAC address is owned by which other VTEP. VXLAN routing has full VRF support, so that allows you to create…

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