Configuring BGP EVPN VXLANv6 This document describes new deployment and migration scenarios for implementing IPv6 in the underlay of a BGP EVPN VXLAN fabric. Restrictions for BGP EVPN VXLANv6, on page 1 Information About BGP EVPN VXLANv6 , on page 1 How to Configure BGP EVPN VXLANv6, on page 3 Migration from VXLANv4 to VXLANv6, on page 6 Configuration Examples for BGP EVPN VXLANv6, on page 10 Restrictions for BGP EVPN VXLANv6 • Optimized Layer 2 overlay multicast is not supported in BGP EVPN VXLANv6. • BGP EVPN VXLANv6 does not support centralized anycast gateway deployment. Only distributed anycast gateway is supported. • BGP EVPN VXLANv6 does not support the following features:
• Multi-Homing • Access Virtual Forwarding Interface (VFI) • Fabric Netflow Information About BGP EVPN VXLANv6 The ever-expanding needs of the enterprise networks to enhance the IP addressing capabilities and simplify the network configurations makes it pertinent to adopt IPv6-enabled networks. The larger IPv6 address space allows networks to scale and provide global reachability. The simplified IPv6 packet header format handles packets more efficiently. IPv6 prefix aggregation, simplified network renumbering, and IPv6 site multihoming capabilities provide an IPv6 addressing hierarchy that allows for more efficient routing.
When you enable IPv6 in the underlay for VXLAN tunnel endpoints (VTEPS), the overlay traffic is encapsulated with the IPv6 VXLAN encapsulation. IPv6 connectivity between the VTEPS is established by enabling IPv6 unicast routing protocols. For overlay multi-destination traffic (BUM), when underlay multicast is used, IPv6 multicast protocol must be enabled. Configuring BGP EVPN VXLANv6 1