Command Reference ARP Commands
2.7 arp timeout
Use this command to configure the timeout for the ARP static mapping record in the ARP cache.
Use the no form of this command to restore the default setting.
The timeout is in the range from 0 to 2147483 in the unit of seconds.
Interface configuration mode/Global configuration mode
The ARP timeout setting is only applicable to the IP address and the MAC address mapping that
are learned dynamically. The shorter the timeout, the truer the mapping table saved in the ARP
cache, but the more network bandwidth occupied by the ARP. Hence the advantages and
disadvantages should be weighted. Generally it is not necessary to configure the ARP timeout
unless there is a special requirement.
The following example sets the timeout for the dynamic ARP mapping record that is learned
dynamically from FastEthernet port 0/1 to 120 seconds.
Ruijie(config)# interface fastEthernet 0/1
Ruijie(config-if)# arp timeout 120
Clears the ARP cache list.
Displays the interface information.
Use this command to set the maximum number of trusted ARP entries. Use the no form of this
command to restore the default setting.
Maximum number of trusted ARP entries.