Configuring Ipv6 Mpls L3Vpn; Overview; Ipv6 Mpls L3Vpn Packet Forwarding - HP FlexNetwork 10500 Series 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
As shown in
1. The PC at Site 1 sends an IPv6 packet destined for 2001:2::1, the PC at Site 2. CE 1 transmits
the packet to PE 1.
IPv4 network
P
PE
P
CE 1
PE 1
Layer1
Layer2
2001:2::1
Figure 76, the IPv6 MPLS L3VPN packet forwarding procedure is as follows:
P
P
PE
P P
PE 2
Layer2
2001:2::1
270
VPN 2
IPv6 Site 3
CE
PE
CE
IPv6 Site 4
VPN 1
Site 2
CE 2
2001:2::1/96
2001:2::1