<Li> The router sending the Hello packets with the highest priority wins the election . </Li> <Li> If two or more routers tie with the highest priority setting, the router sending the Hello with the highest RID (Router ID) wins . NOTE: a RID is the highest logical (loopback) IP address configured on a router, if no logical / loopback IP address is set then the Router uses the highest IP address configured on its active interfaces . (e.g. 192.168. 0.1 would be higher than 10.1. 1.2). </Li> <Li> Usually the router with the second highest priority number becomes the BDR . </Li> <Li> The priority values range between 0--255, with a higher value increasing its chances of becoming DR or BDR . </Li>

The ospf (open shortest path first) routing protocol