PLANET XGS3-24042 - Manual (Page 377)

24-16
Chapter 24 Commands for Gratuitous
ARP Configuration
24.1 ip gratuitous-arp
Command:
ip gratuitous-arp [<interval-time>]
no ip gratuitous-arp
Function:
To enabled gratuitous ARP, and specify update interval for gratuitous ARP. The no form of this
command will disable the gratuitous ARP configuration.
Parameters:
<interval-time> is the update interval for gratuitous ARP with its value limited between 5 and 1200
seconds and with default value as 300 seconds.
Command Mode:
Global Configuration Mode and Interface Configuration Mode.
Default:
Gratuitous ARP is disabled by default.
Usage Guide:
When configuring gratuitous ARP in global configuration mode, all the Layer 3 interfaces in the
switch will be enabled to send gratuitous ARP request. If gratuitous ARP is configured in interface
configuration mode, then only the specified interface is able to send gratuitous ARP requests. When
configuring the gratuitous ARP, the update interval configuration from interface configuration mode
has higher preference than that from the global configuration mode.
Example:
1.To enable gratuitous ARP in global configuration mode, and set the update interval to be 400
seconds.
Switch>enable
Switch#config
Switch(config)#ip gratuitous-arp 400
2.To enable gratuitous ARP for interface VLAN 10 and set the update interval to be 350 seconds.
Switch(config)#interface vlan 10
Switch(Config-if-Vlan10)#ip gratuitous-arp 350