How Does Ospf Determine Dr and Bdr

router with the highest OSPF priority will become a DR. By default, all routers have a priority of 1.if there is a tie, a router with the highest router ID wins the election. The router with the second highest OSPF priority or router ID will become a BDR.

Who will first elect DR and BDR in OSPF?

If no router is a DR or a BDR on a given subnet, the BDR is first elected, and then a second election is held for the DR. What are the criteria for the DR election process? The DR is elected based on the following default criteria: If the priority setting on an OSPF router is set to 0, it can never become a DR or BDR.

How does OSPF determine priority?

Setting Priority for the Selection of the Designated Router In multi-access networks the router with the highest priority value is chosen as the DR which acts as the central point of LSAs exchange. The priority command is assigned on an interface. Default priority for an OSPF interface is 1. The range is from 0 to 255.