3Com 3C13636 Configuration Manual page 914

3Com Router 3000 Ethernet Family
Configuration Guide
# Set up MP-IBGP adjacency between PE2 and PE1 to exchange intra-PE VPN routing
information, and activate MP-IBGP peer in VPNv4 address family view.
[PE2] bgp 100
[PE2] group 11
[PE2-bgp] peer 11.1.1.1 connect-interface loopback 0
[PE2-bgp] ipv4-family vpnv4
[PE2-bgp-af-vpn] peer 11 enable
[PE2-bgp-af-vpn] peer 11.1.1.1 group 11
[PE2-bgp-af-vpn] quit
[PE2-bgp] quit
3) Configure PE3
# Create a VPN-instance on PE3, redistribute VPN routing information of VPN-target
100:2 and advertise VPN routing information of VPN-target 100:1.
[PE3] ip vpn-instance vpn-instance2
[PE3-vpn- vpn-instance2] route-distinguisher 100:1
[PE3-vpn- vpn-instance2] vpn-target 100:1 export-extcommunity
[PE3-vpn- vpn-instance2] vpn-target 100:2 import-extcommunity
[PE3-vpn- vpn-instance2] quit
# Set up MP-EBGP adjacency between PE3 and CE3 to redistribute intra-CE3 VPN
routes learned into MBGP VPN-instance address family.
[PE3] bgp 100
[PE3-bgp] group 172 external
[PE3-bgp] ipv4-family vpn-instance vpn-instance1
[PE3-bgp-af-vpn-instance] peer 172.18.1.1 group 172 as-number 65001
[PE3-bgp-af-vpn-instance] import-route static
[PE3-bgp-af-vpn-instance] import-route direct
[PE3-bgp-af-vpn-instance] quit
[PE3-bgp] quit
# Bind the interface connecting PE3 and CE3 with VPN-instance 2.
[PE3] interface ethernet 1/0/0
[PE3-Ethernet1/0/0] ip binding vpn-instance vpn-instance2
[PE3-Ethernet1/0/0] ip address 172.18.0.1 255.255.0.0
[PE3-Ethernet1/0/0] quit
# Configure loopback interface.
[PE3] interface loopback 0
[PE3-LoopBack0] ip address 33.1.1.1 255.255.255.255
[PE3-LoopBack0] quit
# Set up MP-IBGP adjacency between PE3 and PE1 to exchange intra-PE VPN routing
information, and activate MP-IBGP peer in VPNv4 address family view.
[PE3] bgp 100
Chapter 3 BGP/MPLS VPN Configuration
3Com Corporation
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