Dead Peer Detection

Dead Peer Detection (DPD) is a method of detecting a dead Internet Key Exchange (IKE) peer. The method uses IPsec traffic patterns to minimize the number of messages required to confirm the availability of a peer. DPD is used to reclaim the lost resources in case a peer is found dead and it is also used to perform IKE peer failover.

Famous quotes containing the words dead and/or peer:

    We saw the lightning and that was the guns; and then we heard the thunder and that was the big guns; and then we heard the rain falling and that was the blood falling; and when we came to get in the crops, it was dead men that we reaped.
    Harriet Tubman (1821–1913)

    The Peer now spreads the glitt’ring Forfex wide,
    T’inclose the Lock; now joins it, to divide.
    Alexander Pope (1688–1744)