Ospf Router

Some articles on router, routers, ospf router:

Open Shortest Path First - Designated Router
... A designated router (DR) is the router interface elected among all routers on a particular multiaccess network segment, generally assumed to be broadcast ... Do not confuse the DR with an OSPF router type ... A given physical router can have some interfaces that are designated (DR), others that are backup designated (BDR), and others that are non-designated ...