3Com S7902E Command Reference Manual - page 1648
1-36
number
: Maximum number that the local AS number can appear repeatedly in the AS-PATH attribute. It
ranges from 1 to 10 and defaults to 1.
Description
Use the
peer allow-as-loop
command to allow the local AS number to appear in the AS-PATH attribute
of a received route and to set the allowed maximum number of repetitions.
Use the
undo peer allow-as-loop
command to remove the configuration.
Examples
# In BGP-VPNv4 subaddress family view, allow the local AS number to appear repeatedly in the
AS-PATH attribute of a route received from peer 1.1.1.1 for up to twice.
[Sysname] bgp 100
[Sysname-bgp] ipv4-family vpnv4
[Sysname-bgp-af-vpnv4] peer 1.1.1.1 allow-as-loop 2
# In BGP-L2VPN address family view, allow the local AS number to appear repeatedly in the AS-PATH
attribute of a route received from peer 1.1.1.1 for up to twice.
[Sysname] bgp 100
[Sysname-bgp] l2vpn-family
[Sysname-bgp-af-l2vpn] peer 1.1.1.1 allow-as-loop 2
peer as-path-acl (BGP-VPNv4 subaddress family view)
Syntax
peer
{
group-name | ip-address
}
as-path-acl
as-path-acl-number
{
import
|
export
}
undo peer
{
group-name | ip-address
}
as-path-acl
as-path-acl-number
{
import
|
export
}
View
BGP-VPNv4 subaddress family view
Default Level
2: System level
Parameters
group-name
: Name of the peer group, a case-sensitive string of 1 to 47 characters.
ip-address
: IP address of the peer.
as-path-acl-number
: AS_PATH filtering list number, in the range 1 to 256.
import
: Filters the received routes.
export
: Filters the routes to be advertised.
Description
Use the
peer as-path-acl
command to specify to filter routes received from or to be advertised to a
specified peer or peer group based on an AS_PATH list.
Use the
undo peer as-path-acl
command to remove the configuration.