3Com 8800 Configuration Manual page 486

3Com Switch 8800 Configuration Guide Chapter 37 BGP/MPLS VPN Configuration
[PE-A-mpls] quit
[PE-A] mpls ldp
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.
[PE-A] bgp 100
[PE-A-bgp] group 20 internal
[PE-A-bgp] peer 20.1.1.1 group 20
[PE-A-bgp] peer 20.1.1.1 connect-interface loopback 0
[PE-A-bgp] ipv4-family vpnv4
[PE-A-bgp-af-vpn] peer 20 enable
[PE-A-bgp-af-vpn] peer 20.1.1.1 group 20
[PE-A-bgp-af-vpn] quit
2) Configure PE-C.
Create a VPN-instance 2 on PE-C, so that it can transceive VPN routing information of
VPN-target 111:1 and 222:2.
[PE-C] ip vpn-instance vpn-instance 2
[PE-C-vpn-2] route-distinguisher 100:2
[PE-C-vpn-2] vpn-target 111:1 both
[PE-C-vpn-2] vpn-target 222:2 both
[PE-C-vpn-2] quit
Set up MP-EBGP adjacency between PE-C and CE-C, import intra-CE-C VPN routes
learned into MBGP VPN-instance address family.
[PE-C] bgp 100
[PE-C-bgp] ipv4-family vpn-instance vpn-instance2
[PE-C-bgp-af-vpn-instance] import-route direct
[PE-C-bgp-af-vpn-instance] import-route static
[PE-C-bgp-af-vpn-instance] group 172 external
[PE-C-bgp-af-vpn-instance] peer 172.16.1.1 group 172 as-number 65012
[PE-C-bgp-af-vpn-instance] quit
[PE-C-bgp] quit
Bind VPN-instance2 with the interface of VLAN301 which connects CE-C.
[PE-C] vlan 301
[PE-C-vlan301] port gigabitethernet 3/1/1
[PE-C-vlan301] quit
[PE-C] interface Vlan-interface 301
[PE-C-Vlan-interface301] ip binding vpn-instance vpn-instance2
[PE-C-Vlan-interface301] ip address 172.16.0.1 255.255.0.0
[PE-C-Vlan-interface301] quit
Configure loopback interface
[PE-C] interface loopback 0
37-42