188
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.
