Specifying a route's preference
Syntax:
[no] distance bgp ext-dist int-dist loc-dist
A route’s preference specifies how active routes that are learned from BGP (compared to other protocols) will be selected. When a route has been learned from more than one protocol, the active route will be selected from the protocol with the lowest preference. Each protocol has a default preference in this selection. This preference can be overridden by a preference value specified on the peer.