CCIE Pursuit Blog

March 16, 2009

Core Knowledge Question of the Day: 16 March 2009

Which Cisco OSPF feature allows you to detect lost neighbors within one second even when neighbor loss might not be detected the the OSI physical and data-link layers?

Highlight for answer: OSPF Fast Hello Packets
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3 Comments »

  1. Yep!!!

    No layer 1/2 as said by the post..

    So the layer 3 hello packets used by the OSPF to detect the neighbor failure to respond within the dead-interval of 1 sec i.e, (dead-interval minimal=1sec).

    Comment by Dara — March 20, 2009 @ 3:49 am | Reply

  2. ip ospf dead-interval min for the win 🙂

    Comment by ryan — April 2, 2009 @ 6:53 pm | Reply


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