322
[CE1] interface loopback 0
[CE1-LoopBack0] isis enable 2
[CE1-LoopBack0] quit
[CE1] interface vlan-interface 12
[CE1-Vlan-interface12] ip address 10.1.1.2 24
[CE1-Vlan-interface12] isis enable 2
[CE1-Vlan-interface12] mpls
[CE1-Vlan-interface12] mpls ldp
[CE1-Vlan-interface12] quit
After the configurations, LDP and IS-IS neighbor relationship can be established between PE 3 and
CE 1.
# Configure PE 4 and CE 2 in a similar way to configuring PE 3 and CE 1. (Details not shown.)
3. Connect CE 1 and CE 2 to service provider PEs:
# Configure PE 1.
[PE1] ip vpn-instance vpn1
[PE1-vpn-instance-vpn1] route-distinguisher 200:1
[PE1-vpn-instance-vpn1] vpn-target 1:1
[PE1-vpn-instance-vpn1] quit
[PE1] interface vlan-interface 11
[PE1-Vlan-interface11] ip binding vpn-instance vpn1
[PE1-Vlan-interface11] ip address 11.1.1.2 24
[PE1-Vlan-interface11] mpls
[PE1-Vlan-interface11] quit
[PE1] bgp 100
[PE1-bgp] ipv4-family vpn-instance vpn1
[PE1-bgp-vpn1] peer 11.1.1.1 as-number 200
[PE1-bgp-vpn1] quit
[PE1-bgp] quit
# Configure CE 1.
[CE1] interface vlan-interface 11
[CE1-Vlan-interface11] ip address 11.1.1.1 24
[CE1-Vlan-interface11] mpls
[CE1-Vlan-interface11] quit
[CE1] bgp 200
[CE1-bgp] peer 11.1.1.2 as-number 100
[CE1-bgp] import isis 2
[CE1-bgp] quit
# Configure PE 2 and CE 2 in the same way. (Details not shown.)
4. Connect sub-VPN CEs to the customer VPN PEs:
# Configure CE 3.
<CE3> system-view
[CE3] interface vlan-interface11
[CE3-Vlan-interface11] ip address 100.1.1.1 24
[CE3-Vlan-interface11] quit
[CE3] bgp 65410
[CE3-bgp] peer 100.1.1.2 as-number 200
[CE3-bgp] import-route direct
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