Cisco Small Business 300 1.1 Series, Руководство администратора

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IPv6 Addressing Commands
78-20269-01 Command Line Interface Reference Guide 514
36
User Guidelines
Since the associated interface of a MAC address can be aged out from the FDB
table, the Interface field can be empty.
When an ARP entry is associated with an IP interface that is defined on a port or
port-channel, the VLAN field is empty.
The possible neighbor cash states are:
•
INCMP (Incomplete)—Address resolution is being performed on the entry.
Specifically, a Neighbor Solicitation has been sent to the solicited-node
multicast address of the target, but the corresponding Neighbor
Advertisement has not yet been received.
•
REACH (Reachable)—Positive confirmation was received within the last
ReachableTime milliseconds that the forward path to the neighbor was
functioning properly. While REACHABLE, no special action takes place 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 stale, no action takes place 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, and 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 and change the state to PROBE.
•
PROBE—A reachability confirmation is actively sought by retransmitting
Neighbor Solicitations every RetransTimer milliseconds until a reachability
confirmation is received.
Example
Console# show ipv6 neighbors dynamic
Interface IPv6 address HW address State Router
---------- ----------------------- ---------------- ------ ------
VLAN 1 fe80::200:cff:fe4a:dfa8 00:00:0c:4a:df:a8 stale yes
VLAN 1 fe80::2d0:b7ff:fea1:264d 00:d0:b7:a1:26:4d stale no