3Com Switch 7750 Configuration Guide

Configuring the Way to Advertise/Receive Routing Information 359
c
CAUTION:
■ Only the routes that pass the specified filter are advertised.
■ A peer group member uses the same outbound route filtering policy as that of
the peer group it belongs to. That is, a peer group adopts the same outbound
route filtering policy.
Configuring BGP Route
Receiving Policy
Filter the
routing
information
to be
advertised to
a peer group
Specify an
ACL-based
BGP route
filtering
policy for a
peer group
peer group-name
filter-policy acl-number
export
Required
By default, a peer group has no
peer group-based ACL BGP
route filtering policy, AS path
ACL-based BGP route filtering
policy, or IP prefix list-based
BGP route filtering policy
configured.
Specify an AS
path
ACL-based
BGP filtering
policy for a
peer group
peer group-name
as-path-acl acl-number
export
IP
prefix-based
BGP route
filtering
policy for a
peer group
peer group-name ip-prefix
ip-prefix-name export
Table 294 Configure the BGP route advertising policy
Operation Command Description
Table 295 Configure BGP route receiving policy
Operation Command Description
Enter system view system-view -
Enable BGP, and enter BGP
view
bgp as-number Required
By default, BGP is disabled.
Filter the received global
routing information
filter-policy { acl-number |
ip-prefix ip-prefix-name }
import
Required
By default, the received routing
information is not filtered.
Specify a route filtering
policy for routes coming
from a peer/peer group
peer { group-name |
ip-address } route-policy
policy-name import
Required
By default, no route filtering
policy is specified for a
peer/peer group.