Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.7 - Page 1474

User Guidelines This command is normally used to insert one or more instances of the local AS number at the beginning of the AS_PATH attribute of a BGP route. Doing so increases the AS path length of the route. The AS path length has a strong influence on BGP route selection. Changing the AS path length can influence route selection on the local router or on routers to which the route is advertised. When prepending an inbound route, if the first segment in the AS_PATH of the received route is an AS_SEQUENCE, as-path-string is inserted at the beginning of the sequence. If the first segment is an AS_SET, as-path-string is added as a new segment with type AS_SEQUENCE at the beginning of the AS path. When prepending an outbound route to an external peer, as-pathstring follows the local AS number, which is always the first ASN. Command History Introduced in version 6.2.0.1 firmware. Example console# config console(config)#route-map ppAsPath console(route-map)#set as-path prepend "2 2 2" console(route-map)#exit console(config)#router bgp 1 console(config-rtr)#neighbor 172.20.1.2 remote-as 2 console(config-rtr)#neighbor 172.20.1.2 route-map ppAsPath in set comm-list delete To remove BGP communities from an inbound or outbound UPDATE message, use the set comm-list delete command. To delete the set command from a route map, use the no form of this command. Syntax set comm-list community-list-name delete no set comm-list • community-list-name-A standard community list name. Layer 3 Routing Commands 1474