You can globally set an aging time (time-out value) for dynamically learned ARP entries. The new value applies only to ARP entries that are dynamically learned after the new value is set. Previously existing ARP entries expire after the previously configured aging time.
You can specify an ARP time-out value of from 1 through 1200 seconds.
At the command prompt, type the following commands to set the time-out for dynamic ARP entries and verify its configuration:
> set arpparam -timeout 500 Done
At the command prompt, type the following commands to set the time-out for dynamic ARP entries to its default value and verify its configuration:
> unset arpparam Done
Navigate to Settings group, click Configure ARP Global Parameters, and set the ARP Table Entry Timeout parameter., in the