BGP Peer Groups

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093fb7.shtml

BGP Peer Groups

You can group BGP neighbors who share the same outbound policies together in what is called a BGP peer group. Instead of configuring each neighbor with the same policy individually, a peer group allows you to group the policies which can be applied to individual peers thus making efficient update calculation along with simplified configuration