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3Com Switch 8800 Configuration Guide Chapter 37 BGP/MPLS VPN Configuration
37-74
[PE1-bgp-af-vpn-instance] import-route ospf-ase 100
[PE1-bgp-af-vpn-instance] import-route ospf-nssa 100
[PE1-bgp-af-vpn-instance] import-route direct
[PE1-bgp-af-vpn-instance] undo synchronization
Create and activate peer in MBGP.
[PE1-bgp-af-vpn] ipv4-family vpnv4
[PE1-bgp-af-vpn] peer fc enable
[PE1-bgp-af-vpn] peer fc advertise-community
[PE1-bgp-af-vpn] peer 50.1.1.2 group fc
Bind OSPF process to VPN-instance.
[PE1] ospf 100 router-id 1.1.1.1 vpn-instance vpn1
[PE1-ospf-100] import-route bgp
[PE1-ospf-100] area 0.0.0.0
[PE1-ospf-100-area-0.0.0.0] network 10.1.1.0 0.0.0.255
Configuring sham link
[PE1-ospf-100-area-0.0.0.1] sham-link 1.1.1.1 2.2.2.2
Configure the routes distributed to PE2 and PE3.
[PE1] ospf 1000
[PE1-ospf-1000] area 0
[SW8800-ospf-1000-area-0.0.0.0] network 168.12.1.0 0.0.0.255
[SW8800-ospf-1000-area-0.0.0.0] network 50.1.1.1 0.0.0.0
2) Configure PE2
Enable MPLS and LDP.
[PE2] mpls lsr-id 50.1.1.2
[PE2] mpls
[PE2-mpls] quit
[PE2] mpls ldp
Configure vpn-instance vpn1.
[PE2] ip vpn-instance vpn1
[PE2-vpn-vpn1] route-distinguisher 2:1
[PE2-vpn-vpn1] vpn-target 100:1 export-extcommunity
[PE2-vpn-vpn1] vpn-target 100:1 import-extcommunity
Configure VLAN interface.
[PE2] vlan 203
[PE2-vlan203] port gigabitethernet 2/1/3
[PE2-vlan203] quit
[PE2] interface Vlan-interface 203
[PE2-Vlan-interface203] ip address 168.1.12.2 255.255.255.0
[PE2-Vlan-interface203] mpls