[PE2] ip vpn-instance vpn1
[PE2-vpn-instance-vpn1] route-distinguisher 100:2
[PE2-vpn-instance-vpn1] vpn-target 111:1
[PE2-vpn-instance-vpn1] quit
[PE2] interface vlanif 40
[PE2-Vlanif40] ip binding vpn-instance vpn1
[PE2-Vlanif40] ip address 10.2.1.2 30
[PE2-Vlanif40] quit
[PE2] ospf 2 vpn-instance vpn1
[PE2-ospf-2] area 0
[PE2-ospf-2-area-0.0.0.0] network 10.2.1.0 0.0.0.3
[PE2-ospf-2-area-0.0.0.0] quit
[PE2-ospf-2] import-route bgp
[PE2-ospf-2] quit
[PE2] bgp 100
[PE2-bgp] ipv4-family vpn-instance vpn1
[PE2-bgp-vpn1] import-route ospf 2
[PE2-bgp-vpn1] quit
[PE2-bgp] quit
# Configure CE2.
[CE2] interface vlanif 40
[CE2-Vlanif40] ip address 10.2.1.1 30
[CE2-Vlanif40] quit
[CE2] ospf 2
[CE2-ospf-2] area 0
[CE2-ospf-2-area-0.0.0.0] network 10.2.1.0 0.0.0.3
[CE2-ospf-2-area-0.0.0.0] quit
[CE2-ospf-2] import-route direct
[CE2-ospf-2] quit
The configuration of BGP/MPLS IP VPN is complete. CE1 can communicate with CE2.
Step 4 Configure IGP GR of the backbone network.
Configure IGP GR on PE1, P device, and PE2 on the backbone network.
# Configure PE1.
[PE1] isis 1
[PE1-isis-1] graceful-restart
[PE1-isis-1] quit
# Configure the P device.
[P] isis 1
[P-isis-1] graceful-restart
[P-isis-1] quit
# Configure PE2.
[PE2] isis 1
[PE2-isis-1] graceful-restart
[PE2-isis-1] quit
Run the display isis graceful-restart status command on PE1, P device, and PE2, and you can
view that IS-IS GR is configured successfully.
For example, information about PE1 is displayed as follows:
[PE1] display isis graceful-restart status
Restart information for ISIS(1)
-------------------------------
IS-IS(1) Level-1 Restart Status
Restart Interval: 300
SA Bit Supported
Quidway S7700 Smart Routing Switch
Configuration Guide - VPN 3 BGP MPLS IP VPN Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
303
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