NOTE
If you want to use inter-AS TE tunnels to transmit traffic in inter-AS OptionC networking, perform
the following steps on PEs, so that the loopback interface IP addresses of PEs used for peer
relationship establishment can be advertised to peer PEs.
1. Run:
system-view
The system view is displayed.
2. Run:
bgp as-number
The BGP view is displayed.
3. Run:
network ip-address [ mask | mask-length ] [ route-policy route-policy-
name ]
The loopback address of the PE in the local AS is advertised to the remote ASBR.
l Perform the following steps on the PE that is connected to a CE
1. Run:
system-view
The system view is displayed.
2. Run:
bgp as-number
The BGP view is displayed.
3. Run:
peer ipv4-address as-number as-number
The peer PE is specified as the EBGP peer.
4. Run:
peer ipv4-address ebgp-max-hop [ hop-count ]
The maximum hop of the EBGP peer is configured.
PEs of different ASs are generally not directly connected. To set up the EBGP peer
between PEs of different ASs, configure the maximum hop between PEs and ensure
the PEs are reachable.
5. Run:
ipv4-family vpnv4 [ unicast ]
The BGP VPNv4 address family is displayed.
6. Run:
peer ipv4-address enable
The exchange of VPN IPv4 routes with the peer PE is enabled.
l (Optional) Configuring route reflector (RR)
If the Route Reflector (RR) is used to advertise VPNv4 routes, perform the following steps
on the RR.
1. Run:
system-view
The system view is displayed.
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.
110
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