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Configuring OSPF Timers

OSPF routers constantly track the status of their neighbors, sending and receiving hello packets that indicate whether the neighbor still is functioning, and sending and receiving link-state advertisement and acknowledgment packets. OSPF sends packets and expects to receive packets at specified intervals.

You can perform the following tasks when modifying the OSPF timers:

Modifying the Hello Interval
Controlling the LSA Retransmission Interval
Modifying the Router Dead Interval
Specifying the Transit Delay

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