3Com Switch 8800 Family Configuration Guide

556 CHAPTER 49: BGP/MPLS VPN CONFIGURATION
[PE3-bgp-af-vpn-instance] peer 168.3.1.1 group 168 as-number 65430
[PE3-bgp-af-vpn-instance] quit
[PE3-bgp] quit
# Bind the interface connecting PE3 and CE3 to VPNA.
[PE3] vlan 202
[PE3-vlan202] port gigabitethernet 2/1/2
[PE3-vlan202] quit
[PE3] interface Vlan-interface 202
[PE3-Vlan-interface202] ip binding vpn-instance vpna
[PE3-Vlan-interface202] ip address 168.3.1.2 255.255.0.0
[PE3-Vlan-interface202] quit
# Configure Loopback interface
[PE3] interface loopback0
[PE3-LoopBack 0] ip address 202.100.1.3 255.255.255.255
[PE3-LoopBack 0] quit
# Configure MPLS basic capacity and enable MPLS and LDP on VLAN interface
connecting PE3 and P. Creates LSP and achieve MPLS packet forwarding.
[PE3] mpls lsr-id 202.100.1.3
[PE3] mpls
[PE3-mpls] quit
[PE3] mpls ldp
[PE3] vlan 201
[PE3-vlan201] interface gigabitethernet 2/1/1
[PE3-vlan201] quit
[PE3] interface Vlan-interface 201
[PE3-Vlan-interface201] ip address 172.3.1.1 255.255.0.0
[PE3-Vlan-interface201] mpls
[PE3-Vlan-interface201] mpls ldp enable
[PE3-Vlan-interface201] quit
# Enable OSPF on the interface connecting PE3 and P and the Loopback interface,
import direct-connect routes.
[PE3] ospf
[PE3-ospf-1] area 0
[PE3-ospf-1-area-0.0.0.0] network 172.3.0.0 0.0.255.255
[PE3-ospf-1-area-0.0.0.0] network 202.100.1.3 0.0.0.0
PE3-ospf-1-area-0.0.0.0] quit
[PE3-ospf-1] import-route direct
[PE3-ospf-1-area-0.0.0.0] import-route direct
# Set up MP-IBGP adjacency between PEs to exchange inter-PE VPN routing
information.
[PE3] bgp 100
[PE3-bgp] group 202 internal
[PE3-bgp] peer 202.100.1.1 group 202 as-number 100
[PE3-bgp] peer 202.100.1.1 connect-interface loopback0
[PE3-bgp] ipv4-family vpnv4
[PE3-bgp-af-vpn] peer 202 enable