OSPF Timers and Authentication

Configuring OSPF timers and authentication on a per-area basis is a shortcut to applying the timers and authentication to each VLAN in the area at the time of configuration. If you add more VLANs to the area, you must configure the timers and authentication for the new VLANs explicitly.

Use the command:

configure ospf vlan [vlan-name | all] timer retransmit-interval transit-delay hello-interval dead-interval {wait-timer-interval}