Dell EMC SmartFabric OS10 User Guide Release 10.5.0

Router priority determines the designated router for the network. The default router priority is 1. When two routers attach to a network, both attempt to become the DR. The router with the higher router priority takes precedence. If there is a tie, the router with the higher router ID takes precedence. A router with a router priority set to zero cannot become the DR or BDR.

If not assigned, the system selects the router with the highest priority as the DR. The second highest priority is the BDR. Priority rates from 0 to 255, with 255 as the highest number with the highest priority.

OSPF route limit

OS10 supports up to 16,000 OSPF routes. Within this range, the only restriction is on intra-area routes that scale only up to 1000 routes. Other OSPF routes can scale up to 16 K.