What is the default router priority value for all Cisco OSPF routers?

In OSPF (Open Shortest Path First), the router priority value plays a crucial role in the election process for the designated router (DR) and backup designated router (BDR) on a multi-access network, such as Ethernet. The default router priority value for all Cisco OSPF routers is set to 1.

When OSPF routers send out their hello packets, each router includes its priority value. A higher priority value increases the likelihood that a router will be elected as the DR or BDR. If all routers on the segment have the same priority (which is the default value of 1), the router with the highest router ID will be elected as the DR. If one router has a higher priority than the others, it will take precedence in the election process.

Setting the priority to a specific value can help network administrators control which router should be preferred for these roles, especially in environments where redundancy and optimal routing paths are critical. However, if no specific priority is assigned, the default value of 1 applies, which means all routers have the same baseline level of priority during the election.