3Com Switch 8800 Family Configuration Guide

568 CHAPTER 49: BGP/MPLS VPN CONFIGURATION
[PE1-vlan214] quit
[PE1] interface Vlan-interface 214
[PE1-Vlan-interface214] mpls
[PE1-Vlan-interface214] mpls ldp enable
[PE1-Vlan-interface214] mpls ldp transport-ip interface
[PE1-Vlan-interface214] ip address 30.1.1.2 255.255.255.0
[PE1-Vlan-interface214] quit
# Enable OSPF on the interface connecting PE1 and PE2 and the interface
connecting PE1 and PE3 and the Loopback interface, to achieve inter-PE
communication.
[PE1] Router-id 1.1.1.1
[PE1] ospf
[PE1-ospf-1] area 0
[PE1-ospf-1-area-0.0.0.0] network 1.1.1.1 0.0.0.0
[PE1-ospf-1-area-0.0.0.0] network 30.1.1.2 0.0.0.255
[PE1-ospf-1-area-0.0.0.0] network 10.1.1.1 0.0.0.255
[PE1-ospf-1-area-0.0.0.0] quit
[PE1-ospf-1] quit
# Set up MP-IBGP adjacency between PEs to exchange inter-PE VPN routing
information and activate MP-IBGP peer in VPNv4 sub-address family view.
[PE1] bgp 100
[PE1-bgp] group 2
[PE1-bgp] peer 2.2.2.2 group 2
[PE1-bgp] peer 2.2.2.2 connect-interface loopback 0
[PE1-bgp] group 3
[PE1-bgp] peer 3.3.3.3 group 3
[PE1-bgp] peer 3.3.3.3 connect-interface loopback 0
[PE1-bgp] ipv4-family vpnv4
[PE1-bgp-af-vpn] peer 2 enable
[PE1-bgp-af-vpn] peer 2.2.2.2 group 2
[PE1-bgp-af-vpn] peer 3 enable
[PE1-bgp-af-vpn] peer 3.3.3.3 group 3
[PE1-bgp-af-vpn] quit
2 Configure PE2
n
The configuration of PE2 is similar to that of PE1, so only VPN-instance
configuration is detailed here.
# Create two VPN-instances 2.1 and 2.2 respectively for CE1 and CE2 on PE2,
configure different VPN-targets for them.
[PE2] ip vpn-instance vpn-instance2.1
[PE2-vpn-vpn-instance2.1] route-distinguisher 1.1.1.1:1
[PE2-vpn-vpn-instance2.1] vpn-target 1.1.1.1:1
[PE2-vpn-vpn-instance2.1] quit
[PE2] ip vpn-instance vpn-instance2.2
[PE2-vpn-vpn-instance2.2] route-distinguisher 2.2.2.2:2
[PE2-vpn-vpn-instance2.2] vpn-target 2.2.2.2:2
[PE2-vpn-vpn-instance2.2] quit
# Set up EBGP adjacency between PE2 and CE1 in VPN-instance 2.1, import
intra-CE1 VPN routes learned into VPN-instance2.1.