What devices does OSPF elect to minimize routing information traffic between adjacent networks?

The designated router (DR) and backup designated router (BDR) play pivotal roles in optimizing the efficiency of OSPF (Open Shortest Path First) routing protocol. In OSPF, especially in broadcast networks like Ethernet, multiple routers can be directly connected to the same network segment. If each router were to send its routing information to every other router directly, it could result in excessive routing traffic, leading to redundancy and potential loops.

To alleviate this, OSPF employs the DR and BDR selection process. The designated router acts as a central point for routing information; it collects routing updates from all OSPF routers in the broadcast domain and then disseminates this information to the other routers in that network segment. The backup designated router stands ready to take over in case the designated router fails, thereby ensuring continuity of service.

By consolidating routing updates through the DR and minimizing the number of adjacencies in a broadcast network, OSPF effectively reduces the volume of routing traffic. This mechanism leads to increased efficiency, quicker convergence times, and reduced network overhead.

The other options provided do not reflect the specific mechanisms employed by OSPF to manage routing information traffic effectively. While area border routers and edge routers have their roles in O