HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Comma - Page 182

peer as-path-acl (BGP/BGP-VPN instance view

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Use undo peer group-name as-number to delete a peer group. Use undo peer ip-address to delete a peer. By default, no peer or peer group is specified. You can specify the AS number of a peer in either of the following ways: • Use the peer ip-address as-number as-number command. After that, the system creates the specified peer by default. • Specify the AS number of the peer when adding it to the specified peer group by using the peer ip-address group group-name as-number as-number command; or use the peer as-number command to specify the AS number of a peer group, and then a newly added peer will belong to the AS. The AS number of a peer/peer group cannot be modified directly. To do so, you have to delete the peer/peer group and configure it again. Examples # In BGP view, specify peer group test in AS 100. system-view [Sysname] bgp 100 [Sysname-bgp] peer test as-number 100 # In BGP-VPN instance view, specify peer group test2 in AS 200. (The VPN has been created.) system-view [Sysname] bgp 100 [Sysname-bgp] ipv4-family vpn-instance vpn1 [Sysname-bgp-ipv4-vpn1] peer test2 as-number 200 peer as-path-acl (BGP/BGP-VPN instance view) Syntax peer { group-name | ip-address } as-path-acl as-path-acl-number { export | import } View undo peer { group-name | ip-address } as-path-acl as-path-acl-number { export | import } BGP view, BGP-VPN instance view Default level 2: System level Parameters group-name: Name of a peer group, a string of 1 to 47 characters. ip-address: IP address of a peer. as-path-acl-number: AS path list number, in the range of 1 to 256. export: Filters outgoing routes. import: Filters incoming routes. Description Use peer as-path-acl to configure the filtering of routes incoming from or outgoing to a peer/peer group based on a specified AS path list. 171

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171
Use
undo peer
group-name
as-number
to delete a peer group.
Use
undo peer
ip-address
to delete a peer.
By default, no peer or peer group is specified.
You can specify the AS number of a peer in either of the following ways:
•
Use the
peer
ip-address
as-number
as-number
command. After that, the system creates the
specified peer by default.
•
Specify the AS number of the peer when adding it to the specified peer group by using the
peer
ip-address
group
group-name
as-number
as-number
command; or use the
peer as-number
command to specify the AS number of a peer group, and then a newly added peer will belong to
the AS.
The AS number of a peer/peer group cannot be modified directly. To do so, you have to delete the
peer/peer group and configure it again.
Examples
# In BGP view, specify peer group
test
in AS 100.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] peer test as-number 100
# In BGP-VPN instance view, specify peer group
test2
in AS 200. (The VPN has been created.)
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv4-family vpn-instance vpn1
[Sysname-bgp-ipv4-vpn1] peer test2 as-number 200
peer as-path-acl (BGP/BGP-VPN instance view)
Syntax
peer
{
group-name
|
ip-address
}
as-path-acl
as-path-acl-number
{
export
|
import
}
undo peer
{
group-name
|
ip-address
}
as-path-acl
as-path-acl-number
{
export
|
import
}
View
BGP view, BGP-VPN instance view
Default level
2: System level
Parameters
group-name
: Name of a peer group, a string of 1 to 47 characters.
ip-address
: IP address of a peer.
as-path-acl-number
: AS path list number, in the range of 1 to 256.
export
: Filters outgoing routes.
import
: Filters incoming routes.
Description
Use
peer as-path-acl
to configure the filtering of routes incoming from or outgoing to a peer/peer group
based on a specified AS path list.