Allied Telesis AT-S63 - Manual (Page 730)

Chapter 38: Internet Protocol Version 4 Packet Routing Commands
730 Section VII: Internet Protocol Routing
SET IP ARP TIMEOUT
Syntax
set ip arp timeout= integer
Parameter
timeout Specifies the ARP cache timeout value The range is 150 to
260000 seconds. The default setting is 600 seconds.
Description
This command sets the ARP cache timeout value. The timer prevents the
ARP table from becoming full with inactive entries. An entry that is not
used for the length of the timeout period is designated as inactive and
deleted from the table. To view the current timeout value, refer to “SHOW
IP ARP” on page 741.
Example
The following command sets the timer to 400 seconds:
set ip arp timeout=400