Справочное Руководство для 3com S7906E

 

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. 

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. 

# 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> system-view 

[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> system-view 

[Sysname] bgp 100 

[Sysname-bgp] l2vpn-family 

[Sysname-bgp-af-l2vpn] peer 1.1.1.1 allow-as-loop 2 

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 } 

BGP-VPNv4 subaddress family view 

2: System level 

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. 

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.