Routing
213
ProSafe M5300 Switch
Neighbor State Specifies the state of the neighbor cache entry. Following are the states for
dynamic entries in the IPv6 neighbor discovery cache:
• Incmp - Address resolution is being performed on the entry. A neighbor
solicitation message has been sent to the solicited-node multicast address of
the target, but the corresponding neighbor advertisement message has not yet
been received.
• Reach - Positive confirmation was received within the last Reachable Time
milliseconds that the forward path to the neighbor was functioning properly.
While in REACH state, the device takes no special action as packets are sent.
• Stale - More than ReachableTime milliseconds have elapsed since the last
positive confirmation was received that the forward path was functioning
properly. While in STALE state, the device takes no action until a packet is
sent.
• Delay - More than ReachableTime milliseconds have elapsed since the last
positive confirmation was received that the forward path was functioning
properly. A packet was sent within the last DELAY_FIRST_PROBE_TIME
seconds. If no reachability confirmation is received within
DELAY_FIRST_PROBE_TIME seconds of entering the DELAY state, send a
neighbor solicitation message and change the state to PROBE.
• Probe - A reachability confirmation is actively sought by resending neighbor
solicitation messages every RetransTimer milliseconds until a reachability
confirmation is received.
Last Updated Time since the address was confirmed to be reachable.
Field Description