Configuring Ipv6 Mpls L3Vpn; Overview; Ipv6 Mpls L3Vpn Packet Forwarding - HP 6127xlg Configuration Manual

Configuring IPv6 MPLS L3VPN

Overview

IPv6 MPLS L3VPN uses BGP to advertise IPv6 VPN routes and uses MPLS to forward IPv6 VPN packets
on the service provider backbone.
Figure 75 shows a typical IPv6 MPLS L3VPN model. The service provider backbone in the IPv6 MPLS
L3VPN model is an IPv4 network. IPv6 runs inside the VPNs and between CE and PE. Therefore, PEs must
support both IPv4 and IPv6. The PE-CE interfaces of a PE run IPv6, and the PE-P interface of a PE runs
IPv4.
Figure 75 Network diagram for the IPv6 MPLS L3VPN model
VPN 1
IPv6 Site 1
CE
CE
IPv6 Site 2
VPN 2

IPv6 MPLS L3VPN packet forwarding

Figure 76 IPv6 MPLS L3VPN packet forwarding diagram
Site 1
2001:1::1/96
2001:2::1
IPv4 network
P
PE
P
CE 1
P
PE 1
Layer1
Layer2
2001:2::1
P
PE
P
PE
P
PE 2
Layer2
2001:2::1
2001:2::1
275
VPN 2
IPv6 Site 3
CE
CE
IPv6 Site 4
VPN 1
Site 2
CE 2
2001:2::1/96