207
237B
Configuring routing between PEs
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP instance view.
bgp
as-number
[
instance
instance-name
]
[
multi-session-thread
]
N/A
3.
Configure the remote PE as
a BGP peer.
peer
{
group-name
|
ip-address
[
mask-length
] }
as-number
as-number
By default, no BGP peers exist.
4.
Specify the source interface
for route updates.
peer
{
group-name
|
ip-address
[
mask-length
] }
connect-interface
interface-type
interface-number
By default, BGP uses the output
interface of the optimal route
destined for the peer as the
source interface.
5.
Create the BGP VPNv4
address family and enter its
view.
address-family vpnv4
By default, the BGP VPNv4
address family is not created.
6.
Enable BGP VPNv4 route
exchange with the specified
peer.
peer
{
group-name
|
ip-address
[
mask-length
] }
enable
By default, BGP does not
exchange BGP VPNv4 routes
with any peer.
238B
Configuring BGP VPNv4 route control
BGP VPNv4 route control is configured similarly with BGP route control, except that it is configured in
BGP VPNv4 address family view. For more information about BGP route control, see
Layer 3—IP
Routing Configuration Guide.
To configure BGP VPNv4 route control:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP instance view.
bgp
as-number
[
instance
instance-name
]
[
multi-session-thread
]
N/A
3.
Enter BGP VPNv4 address
family view.
address-family vpnv4
N/A
4.
Configure filtering of
advertised routes.
filter-policy
{
ipv4
-
acl-number
|
prefix-list
prefix-list-name
}
export
[
protocol process-id
]
By default, BGP does not filter
advertised routes.
5.
Configure filtering of
received routes.
filter-policy
{
ipv4
-
acl-number
|
prefix-list prefix-list-name
}
import
By default, BGP does not filter
received routes.
6.
Advertise the COMMUNITY
attribute to a peer or peer
group.
peer
{
group-name
|
ipv4-address
[
mask-length
] }
advertise-community
By default, BGP does not
advertise the COMMUNITY
attribute to any peers or peer
groups.
7.
Allow the local AS number to
appear in the AS_PATH
attribute of routes received
from the peer, and set the
maximum number of
repetitions.
peer
{
group-name
|
ipv4-address
[
mask-length
] }
allow-as-loop
[
number
]
By default, BGP discards route
updates that contain the local AS
number.
