3Com 8800 Configuration Manual page 492

3Com Switch 8800 Configuration Guide Chapter 37 BGP/MPLS VPN Configuration
[PE1-bgp] peer 22.1.1.1 group 22 as-number 100
[PE1-bgp] peer 22.1.1.1 connect-interface loopback 0
[PE1-bgp] group 33
[PE1-bgp] peer 33.1.1.1 group 33 as-number 100
[PE1-bgp] peer 33.1.1.1 connect-interface loopback 0
[PE1-bgp] ipv4-family vpnv4
[PE1-bgp-af-vpn] peer 22 enable
[PE1-bgp-af-vpn] peer 22.1.1.1 group 22
[PE1-bgp-af-vpn] peer 33 enable
[PE1-bgp-af-vpn] peer 33.1.1.1 group 33
[PE1-bgp-af-vpn] quit
2) Configure PE2
Create a VPN-instance on PE2, import VPN routing information of VPN-target 100:2
and advertise VPN routing information of VPN-target 100:1.
[PE2] ip vpn-instance vpn-instance1
[PE2-vpn-vpn-instance1] route-distinguisher 100:1
[PE2-vpn-vpn-instance1] vpn-target 100:11 export-extcommunity
[PE2-vpn-vpn-instance1] vpn-target 100:2 import-extcommunity
[PE2-vpn-vpn-instance1] quit
Set up MP-EBGP adjacency between PE2 and CE2, import intra-CE2 VPN routes
learned into MBGP VPN-instance address family.
[PE2] bgp 100
[PE2-bgp] ipv4-family vpn-instance vpn-instance1
[PE2-bgp-af-vpn-instance] import-route static
[PE2-bgp-af-vpn-instance] import-route direct
[PE2-bgp-af-vpn-instance] group 172 external
[PE2-bgp-af-vpn-instance] peer 172.15.1.1 group 172 as-number 65001
[PE2-bgp-af-vpn-instance] quit
[PE2-bgp] quit
Bind the interface of the VLAN to which the port connecting PE2 and CE2 belongs to
VPN-instance.
[PE2] vlan 201
[PE2-vlan201] port gigabitethernet 2/1/1
[PE2-vlan201] quit
[PE2] interface Vlan-interface 201
[PE2-Vlan-interface201] ip binding vpn-instance vpn-instance1
[PE2-Vlan-interface201] ip address 172.15.0.1 255.255.0.0
[PE2-Vlan-interface201] quit
Configure loopback interface
[PE2] interface loopback 0
[PE2-LoopBack0] ip address 22.1.1.1 255.255.255.255
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