3com 8807 Reference Guide

Use the if-match as-path command to match the AS path domain of the BGP 
routing information.

Use the undo if-match as-path command to cancel the match of AS path 
domain.

By default, AS path list number is not matched.

This command is an if-match sub-statement of route-policy, used to filter BGP 
routing information and specify the match condition according to the AS path 
attribute of the routing information.

# First define an as-path numbered 2, allowing it to contain the routing 
information of AS 200 and AS 300. Then define a route-policy named "test". An 
if-match sub-statement is defined for Node 10 of this route-policy, which quotes 
the definition of as-path.

[SW8800] ip as-path-acl 2 permit 200:300

 

[SW8800] route-policy test permit node 10

 

[3Com-route-policy] if-match as-path 2 

if-match community { basic-community-number [ whole-match ] | 
adv-community-number }

Route policy view

basic-community-list-number: Basic community list number, ranging from 1 to 99.

adv-community-list-number: Advanced community list number, ranging from 100 
to 199.

whole-match: Exact match. That is, all specified communities must be present 
and only these communities are present.

Use the if-match community command to match the community attribute of the 
BGP information.

Use the undo if-match community command to cancel the match of the 
community attribute.

By default, no match operation is done on the community attribute of BGP routes.

This if-match sub-statement of route-policy is used to filter BGP routing 
information and specify the match condition according to the community 
attributes of the routing information.