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3Com Switch 8800 Configuration Guide Chapter 37 BGP/MPLS VPN Configuration
37-43
[PE-C-LoopBack0] ip address 20.1.1.1 255.255.255.255
[PE-C-LoopBack0] quit
Configure MPLS basic capacity.
[PE-C] mpls lsr-id 20.1.1.1
[PE-C] mpls
[PE-C-mpls] quit
[PE-C] 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-C] bgp 100
[PE-C-bgp] group 10
[PE-C-bgp] peer 10.1.1.1 group 10
[PE-C-bgp] peer 10.1.1.1 connect-interface loopback 0
[PE-C-bgp] group 30
[PE-C-bgp] peer 30.1.1.1 group 30
[PE-C-bgp] peer 30.1.1.1 connect-interface loopback 0
[PE-C-bgp] ipv4-family vpnv4
[PE-C-bgp-af-vpn] peer 10 enable
[PE-C-bgp-af-vpn] peer 10.1.1.1 group 10
[PE-C-bgp-af-vpn] peer 30 enable
[PE-C-bgp-af-vpn] peer 30.1.1.1 group 30
[PE-C-bgp-af-vpn] quit
3) Configure PE-B:
Create VPN-instance 3 for VPN2 on PE-B, so that it can transceive VPN routing
information of VPN-target 222:2.
[PE-B] ip vpn-instance vpn-instance 3
[PE-B-vpn-3] route-distinguisher 100:3
[PE-B-vpn-3] vpn-target 222:2 both
[PE-B-vpn-3] quit
Set up MP-EBGP adjacency between PE-B and CE-B, import intra-CE-B VPN routes
learned into MBGP VPN-instance address family.
[PE-B] bgp 100
[PE-B-bgp] ipv4-family vpn-instance vpn-instance3
[PE-B-bgp-af-vpn-instance] import-route direct
[PE-B-bgp-af-vpn-instance] import-route static
[PE-B-bgp-af-vpn-instance] group 172 external
[PE-B-bgp-af-vpn-instance] peer 172.17.1.1 group 172 as-number 65013
[PE-B-bgp-af-vpn-instance] quit
[PE-B-bgp] quit
Bind VPN-instance3 with interface of VLAN301 which connects to CE-B.