3Com 10014299 manual Filter for BGP

	Configuring BGP 469
Operation	Command
Set the communities attributes	apply community { { [aa:nn ] [
	no-export-subconfed ] [ no-advertise
	] [ no-export ] } [ additive ] none
	additive }
Delete the communities attributes	undo apply community
Set the next hop of BGP routing	apply ip next-hop ip-address
information
delete the next hop of BGP routing	undo apply ip next-hop
Set the local preference value of source	apply local-preference value
route
Cancel the local preference value of	undo apply local-preference
source route
Apply cost to the imported routes	apply cost cost
Restore the destination routing protocol's	undo apply cost
cost value
Set the origin attribute of the original	apply origin { igp egp as-number
route in the Route-policy	incomplete }
Remove the origin attribute	undo apply origin

By default, AS serial number, BGP community attribute, next hop, local preference, metric value, and origin attributes are not applied.

See “Define Apply Clause “of “Configuration of IP Routing Policy” for details.

Configuring a Route Perform the following configurations in BGP view.

Filter for BGP

Configure a route filter for information received by BGP

Table 556 Filter Routing Information Received from BGP

Operation	Command
Filter routing information received from a	filter-policy gateway
specified gateway	prefix-list-name import
Change or cancel filtering the routing	undo filter-policy gateway
information received from a specified	prefix-list-name import
gateway
Filter the routing information received	filter-policy {acl-number ip-prefix
	prefix-list-name } import
Change or cancel filtering routing	undo filter-policy {acl-number
information received	ip-prefixprefix-list-name } import
Configure to filter the routing information	filter-policy ip-prefix
received from the specified address and	prefix-list-name { gateway
that matching prefix-list.	prefix-list-name import }
Configure not to filter the routing	undo filter-policy ip-prefix
information received from the specified	prefix-list-name { gateway
address and that matching prefix-list.	prefix-list-name import }