show arp state
Syntax
show arp state {all | failed | incomplete | permanent | reachable | stale} [vsx-peer]
Description
Shows ARP (Address Resolution Protocol) cache entries that are in the specified state.
Command context
Operator (>
) or Manager (#
)
Parameters
all
Shows the ARP cache entries for all VRF (Virtual Router Forwarding) instances.
failed
Shows the ARP cache entries that are in
failed
state. The neighbor might have been deleted.incomplete
Shows the ARP cache entries that are in
incomplete
state.An incomplete state means that address resolution is in progress and the link-layer address of the neighbor has not yet been determined. A solicitation request was sent, and the switch is waiting for a solicitation reply or a timeout.
permanent
Shows the ARP cache entries that are in
permanent
state. ARP entries that are in a permanent state can be removed by administrative action only.reachable
Shows the ARP cache entries that are in
reachable
state, meaning that the neighbor is known to have been reachable recently.stale
Shows ARP cache entries that are in
stale
state.ARP cache entries are in the
stale
state if the elapsed time is in excess of the ARP timeout in seconds since the last positive confirmation that the forwarding path was functioning properly.[vsx-peer]
Shows the output from the VSX peer switch. If the switches do not have the VSX configuration or the ISL is down, the output from the VSX peer switch is not displayed.
Authority
Operators or Administrators. Users without administrator authority can execute this command from the operator context (>) only.
Examples
switch# show arp state failed IPv4 Address MAC Port Physical Port State --------------------------------------------------------------------------- 192.168.1.4 vlan10 failed