Draytek Vigor 2960 series, User Manual

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Vigor2960 Series User’s Guide 398
Item Description
Status Display the status for such neighbor.
INCOMPLETE - Address resolution is in progress and the
link-layer address of the neighbor has not yet been
determined.
REACHABLE - The neighbor is reachable recently (within
tens of seconds ago).
STALE -The neighbor is no longer to be reachable. Yet, until
traffic is sent to the neighbor, no attempt should be made to
verify its reachability.
DELAY - The neighbor is no longer to be reachable, and the
traffic has recently been sent to the neighbor.
Rather than probe the neighbor immediately, however, delay
sending probes for a short while in order to give upper layer
protocols a chance to provide reachability confirmation.
PROBE - The neighbor is no longer to be reachable, and
unicast Neighbor Solicitation probes are being sent to verify
reachability.