Peer Members:
Peer V AS MsgRcvd MsgSent OutQ Up/Down State
PrefRcv
2.2.2.2 4 100 13 15 0 00:11:12 Established
0
3.16 Configuring Route Reflection to Optimize the VPN
Access Layer
If a PE and the connected CEs are in the same AS, you can deploy a BGP route RR to reduce
the number of IBGP connections between CEs and facilitate maintenance and management.
3.16.1 Establishing the Configuration Task
Before configuring an RR to optimize the VPN access layer, familiarize yourself with the
applicable environment, complete the pre-configuration tasks, and obtain the required data. This
can help you complete the configuration task quickly and accurately.
Applicable Environment
If a PE and multiple CEs accessing the PE are located in the same AS, to reduce the IBGP
connections between the CEs, the PE can be configured as an RR to reflect the routes of the
VPN instance, and the CEs can be configured as clients, which are called Client CEs. This
procedure simplifies and facilitates network maintenance and management.
Pre-configuration Tasks
Before configuring route reflection to optimize the VPN access layer, complete the following
tasks:
l Configure a routing protocol for the MPLS backbone network to implement IP interworking
between the routers in the backbone network.
Data Preparation
Before configuring route reflection to optimize the VPN access layer, you need the following
data.
No.
Data
1 Local AS number and peer AS number
2 Type and number of the interfaces used to set up the TCP connection
3 BGP peer group name and IP addresses of peers
Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN 3 BGP MPLS IP VPN Configuration
Issue 01 (2012-04-20) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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