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:

    There is a higher law affecting our relation to pines as well as to men. A pine cut down, a dead pine, is no more a pine than a dead human carcass is a man.
    Henry David Thoreau (1817–1862)

    Up a lazy river by the old mill run, that lazy, lazy river in the noonday sun.
    Sidney Arodin, U.S. songwriter. “Lazy River,” Peer International Corp. (1931)