D-Link DGS-6600-48TS CLI Guide - Page 559

DGS-6604 m set as-path set as-path Use this command to modify an autonomous system path for BGP routes. To delete an entry, use the no form of this command. set as-path prepend AS-NUMBER-LIST no set as-path prepend AS-NUMBER-LIST Syntax Description AS-NUMBER-LIST Appends the string following the keyword pre-pended to the autonomous system path of the route, that is matched by the route map. Applies to inbound and outbound BGP route maps. It can specify an AS number or a list of AS number. AS number or Default Command Mode Usage Guideline Example Disabled Route-map configuration The only global BGP metric available to influence the best path selection is the autonomous system path length. By varying the length of the autonomous system path, a BGP speaker can influence the best path selection to a peer further away. The set as-path prepend variation allows an arbitrary autonomous system path string to be pre-pended to BGP routes. Usually the local autonomous system number is pre-pended multiple times, increasing the autonomous system path length. When as-path is not modified by the route map, by default, the local AS will be pre-pended in the access list. This example shows how to set the as-path list 1, 10, 100, 200 with route map entry myPolicy: Switch(config)# route-map myPolicy permit 1 Switch(config-route-map)#set as-path prepend 1 10 100 200 Verify the settings by entering the show route-map command. CLI Reference Guide 549