3. Configure VSIs on PE1, ASBR-PE1, ASBR-PE2, and PE2 and bind the VSIs to related
AC interfaces.
Data Preparation
To complete the configuration, you need the following data:
l IS-IS data
l MPLS LSR IDs of PEs and ASBR-PEs (IP addresses of the loopback interfaces on peers)
l CE IDs and CE ranges
l IP addresses of interfaces connecting CEs to PEs (No IP address is required for interfaces
connecting PEs to CEs.)
Procedure
Step 1 Configure the VLAN to which each interface belongs according to Figure 6-10.
The configuration details are not mentioned here.
NOTE
The S9300 only allows the CE to access the PE through a trunk.
Do not add the AC-side port and PW-side port of a PE to the same VLAN; otherwise, a loop may occur.
Step 2 Configure an IGP on the backbone network.
Devices on the MPLS backbone network can interwork through an IGP. IS-IS used as an IGP
in this example.
The configuration details are not mentioned here. Note that IS-IS must be enabled on Loopback1.
After the configuration, IS-IS neighbor relationships are established between ASBR-PEs and
PEs in the same AS. Run the display isis peer command, and you can view that the neighbors
are Up. ASBRs and PEs can learn loopback addresses from each other.
Take PE1 as an example.
<PE1> display isis peer
Peer information for ISIS(1)
----------------------------
System Id Interface Circuit Id State HoldTime Type PRI
0000.0000.0002 Vlanif20 0000000001 Up 20s L1L2 --
Total Peer(s): 1
<PE1> display ip routing-table
Route Flags: R - relied, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 7 Routes : 7
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
2.2.2.2/32 ISIS 15 10 D 100.1.1.2 Vlanif20
100.1.1.0/30 Direct 0 0 D 100.1.1.1 Vlanif20
100.1.1.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
100.1.1.2/32 Direct 0 0 D 100.1.1.2 Vlanif20
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
Quidway S9300 Terabit Routing Switch
Configuration Guide - VPN 6 VPLS Configuration
Issue 03 (2009-08-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
6-77
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