ip-address— Neighbor's IP address.
peer-group-name— Name of the peer group. See section 8-19.
as-path-list-number— IP AS path list number.
Purpose: To filter outgoing route updates to a particular BGP neighbor. Filtering is based on AS path information. Only one filter list can be used per neighbor. The operation of the output filter list is identical for both IBGP and EBGP neighbors.
Cisco IOS Software Release: 10.0. Peer group support was added in Release 11.0.
In Figure 8-12, Routers B and C are advertising four network prefixes. Router B filters the route update to Router ...