4 show ip arp – CANOGA PERKINS 9175 Command Reference User Manual
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CanogaOS Command Reference
13-3
Usage
This command updates the dynamically learned IP address and MAC address mapping information in
the ARP table to ensure the validity of those entries. If the refresh operation encounters any stale entries
(dynamic ARP entries that have expired but have not yet been aged out by an internal, timer-driven
process), those entries are aged out of the ARP table immediately as opposed to at the next refresh
interval.
Use this command without any arguments or keywords to refresh all ARP cache entries for all enabled
interfaces.
Examples
The following example shows how to refresh all dynamically learned ARP cache entries for all enabled
interfaces:
Switch# clear arp-cache
Related Commands
show ip arp
13.4 show ip arp
To display the entries in the Address Resolution Protocol (ARP) table, use the show ip arp command in
privileged EXEC mode.
Command Syntax
show ip arp [[vrf vrf-name] interface interface-name]
vrf vrf-name
(Optional) Displays the entries under the Virtual Private
Network (VPN) routing and forwarding (VRF) instance
specified by the vrf-name argument.
interface interface-name
(Optional) Refreshes only the ARP table entries associated
with this interface.
Command Mode
Privileged EXEC
Usage
To display all entries in the ARP cache, use this command without any arguments or keywords.
Examples
The following is sample output from the show ip arp command:
Switch# show ip arp
Protocol Address Age (min) Hardware Addr Interface
Internet 1.1.1.1 - 7cb5.0157.0c00 eth-0-1
Internet 2.2.2.1 - 7cb5.0157.0c00 eth-0-2
Internet 3.3.3.1 - 7cb5.0157.0c00 eth-0-3
Internet 10.0.20.1 - 7cb5.0157.0c00 eth-0-10