H3C Technologies H3C S6800 Series Switches - Manual (Page 201)

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Step Command Remarks
2. Enter BGP view. bgp as-number N/A
3. Configure the PE as a BGP
peer.
peer { group-name | ip-address
[ mask-length ] } as-number
as-number
By default, no BGP peer is
created.
4. Create the BGP IPv4 unicast
family and enter its view.
address-family ipv4 [ unicast ]
By default, the BGP IPv4 unicast
family is not created.
5. Enable IPv4 unicast route
exchange with the specified
peer or peer group.
peer { group-name | ip-address
[ mask-length ] } enable
By default, BGP does not
exchange IPv4 unicast routes
with any peer.
6. (Optional.) Configure route
redistribution.
import-route protocol
[ { process-id | all-processes }
[ med med-value | route-policy
route-policy-name ] * ]
A CE must redistribute its routes
to the PE so the PE can advertise
them to the peer CE.
Configuring IBGP between a PE and a CE
Use IBGP between PE and CE only in a basic MPLS L3VPN network. In networks such as Hub&Spoke,
Extranet, inter-AS VPN, carrier's carrier, nested VPN, and HoVPN, you cannot use IBGP between PE and
CE.
1. Configure the PE:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Enter BGP-VPN instance
view. ip vpn-instance
vpn-instance-name
Configuration commands in
BGP-VPN instance view are the
same as those in BGP view. For
details, see Layer 3—IP Routing
Configuration Guide.
4. Configure the CE as the
VPN IBGP peer.
peer { group-name | ip-address
[ mask-length ] } as-number
as-number
By default, no BGP peer is
created.
5. Create the BGP-VPN IPv4
unicast family and enter its
view. address-family ipv4 [ unicast ]
By default, the BGP-VPN IPv4
unicast family is not created.
6. Enable IPv4 unicast route
exchange with the specified
peer.
peer { group-name | ip-address
[ mask-length ] } enable
By default, BGP does not
exchange IPv4 unicast routes
with any peer.