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:

    It is a dead heart.
    It is inside of me.
    It is a stranger
    yet once it was agreeable,
    opening and closing like a clam.
    Anne Sexton (1928–1974)

    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)