4000 Router Series MPLS Configuration Guide

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Verifying the configuration

The CEs have learned the route to each other and can ping each other.

Configuring IPv6 MPLS L3VPN inter-AS option A

Network requirements

CE 1 and CE 2 belong to the same VPN. CE 1 accesses the network through PE 1 in AS 100 and CE 2

accesses the network through PE 2 in AS 200.

Configure IPv6 MPLS L3VPN inter-AS option A, and use VRF-to-VRF method to manage VPN routes.

Run OSPF on the MPLS backbone of each AS.

Figure 64 Network diagram

Device Interface IP address

Device

Interface IP address

CE 1 Eth1/1 2001:1::1/96

CE 2

Eth1/1 2001:2::1/96

PE 1 Loop0 1.1.1.9/32 PE 2 Loop0 4.4.4.9/32

Eth1/1 2001:1::2/96

Eth1/1 2001:2::2/96

POS5/0 172.1.1.2/24

POS5/0 162.1.1.2/24

ASBR-PE1 Loop0 2.2.2.9/32 ASBR-PE2 Loop0 3.3.3.9/32

POS5/0 172.1.1.1/24

POS5/0 162.1.1.1/24

POS5/1 2002:1::1/96

POS5/1 2002:1::2/96

Configuration procedure

1. Configure an IGP on each MPLS backbone to ensure IP connectivity within the backbone:

This example uses OSPF. Be sure to advertise the route to the 32-bit loopback interface address of

each router through OSPF. Use the loopback interface address of a router as the router's LSR ID.

(Details not shown.)

After the configurations, each ASBR PE and the PE in the same AS can establish an OSPF

adjacency. Execute the display ospf peer command and ping command. The output shows that the

adjacencies are in Full state, and that the PE and ASBR PE in the same AS have learned the routes

to the loopback interfaces of each other and can ping each other.