EVPN-VXLAN: IPv6 underlay

You can configure an EVPN-VXLAN fabric with an IPv6 underlay. You can use this feature only with MAC-VRF routing instances (all service types). You must configure either an IPv4 or an IPv6 underlay across the EVPN instances in the fabric; you can't mix IPv4 and IPv6 underlays in the same fabric.

To enable this feature, include these steps when you configure the EVPN underlay:

• Configure the underlay VXLAN tunnel endpoint (VTEP) source interface as an IPv6 address.
• Even though the underlay uses the IPv6 address family, for BGP handshaking to work in the underlay, you must configure the router ID in the routing instance with an IPv4 address.