When OSPF routers on an Ethernet (broadcast) segment perform a Designated Router (DR) and Backup Designated Router (BDR) election, which criterion is evaluated first to determine which router becomes the DR?
The highest interface OSPF priority value advertised by the routers
The lowest interface OSPF priority value advertised by the routers
During a DR/BDR election on broadcast and non-broadcast multi-access networks, OSPF compares interface priorities carried in Hello packets first. The router advertising the highest interface priority (0-255) is elected the DR, and the router with the next-highest priority becomes the BDR. If multiple routers share the same priority, the election falls back to the highest Router ID. A priority of 0 prevents a router from becoming DR or BDR.
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Cisco CCNA 200-301
IP Connectivity
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