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.
weight— 1 to 65535. This value is applied to the weight attribute of incoming routes matching the conditions in the AS path filter list.
Purpose: Routes learned from BGP neighbors have the weight attribute set to 0. This form of the filter-list command allows you to set the weight attribute of selected routes received from a particular neighbor. This command applies only to incoming route updates. The operation of the filter list is identical for both IBGP and EBGP neighbors.
Cisco IOS Software Release: ...