M6VPE
The multicast IPv6 VPN provider edge (M6VPE) feature enables PEs to transmit IPv6 multicast traffic of a VPN instance over the public network. Only the IPv4 network is available for the backbone network.
As shown in Figure 77, the public network runs IPv4 protocols, and sites of VPN instance VPN A run IPv6 multicast protocols. To transmit IPv6 multicast traffic between CE 1 and CE 2, configure M6VPE on the PEs.
Figure 77: M6VPE network
IPv6 multicast traffic forwarding over the IPv4 public network is as follows:
CE 1 forwards an IPv6 multicast packet for VPN instance VPN A to PE 1.
PE 1 encapsulates the IPv6 multicast packet with an IPv4 packet header and transmits the IPv4 packet in the IPv4 backbone network.
PE 2 decapsulates the IPv4 packet and forwards the IPv6 multicast packet to CE 2.