Context
Perform the following steps on the RR.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
bgp as-number
The BGP view is displayed.
Step 3 Run:
ipv4-family vpn-instance vpn-instance-name
The BGP VPN instance IPv4 address family view is displayed.
Step 4 Enable route reflection for the routes of the BGP VPN instance IPv4 address family on the RR.
l Run the peer group-name reflect-client command to enable route reflection if the RR
establishes the IBGP connection with the peer group consisting of all Client CEs.
l Run the peer ipv4-address reflect-client command repeatedly to enable route reflection if
the RR establishes the IBGP connection with each PE rather than the peer group.
Step 5 (Optional) Run:
reflect between-clients
Route reflection between the Client CEs is enabled.
By default, route reflection between the Client CEs is enabled.
If the Client CEs are fully connected, you can use the undo reflect between-clients command
to disable route reflection between the clients to reduce costs.
Step 6 (Optional) Run:
reflector cluster-id cluster-id
The RR cluster ID is set.
If a cluster has multiple RRs, you can use this command to set the same cluster ID for these RRs
to prevent routing loops. By default, the cluster ID is the router ID.
----End
3.16.5 Checking the Configuration
After configuring an RR to optimize the VPN access layer, you can view information on the RR
about peers of the BGP VPN instance, routes received from the peers, and the VPNv4 routes
advertised to the peers.
Prerequisites
The configurations of the route reflection to optimize the VPN access layer function are
complete.
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.
144
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