l Configuring IGP for MPLS backbone networks in each AS to realize IP connectivity of the
backbones in one AS
l Configuring basic MPLS capability and MPLS LDP for the MPLS backbone network
l Configuring VPN Instances on the PE devices connected with the CE devices and
Binding an Interface with a VPN Instance
l Configuring the IP addresses of the CE interfaces through which the CE accesses the PE
Data Preparation
To configure inter-AS VPN Option B, you need the following data.
No. Data
1 To configure the VPN instance on the PE, you need the following data:
l Name of the VPN instance
l (Optional) Description of the VPN instance
l RD, VPN target attribute of the VPN instance
l (Optional) Routing policy for controlling the import and export of VPN routes
l (Optional) Maximum number of route permitted in a VPN instance
2
IP address of the PE interface connected with the PE
3 AS number of the PE
4 IP addresses of the interfaces connected the ASBRs
5 Routing policy configured between the PE and the CE: static routes, RIP, OSPF, IS-
IS and BGP
6 IP addresses and interfaces setting up the IBGP peer between the PE and the ASBR
3.7.2 Configuring MP-IBGP Between PEs and ASBRs in the Same
AS
By importing extended community attributes to BGP, MP-IBGP can advertise VPNv4 routes
between the PE and the ASBR.
Context
Do as follows on the PE and the ASBR in the same AS.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
bgp as-number
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.
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