Command Line Interface Guide

386 Dynamic ARP Inspection Commands
ip arp inspection limit
Use the ip arp inspection limit command to configure the rate limit and
burst interval values for an interface.
Configuring none for the limit means the interface is not rate limited for
Dynamic ARP Inspection.
Syntax
ip arp inspection limit {none | rate pps [burst interval seconds ]}
no ip arp inspection limit
• none — To set no rate limit.
•
pps — The number of packets per second (Range: 0–300).
•
seconds — The number of seconds (Range: 1–15).
Default Configuration
The default rate limit is 15 packets per second.
The default burst interval is 1 second.
Command Mode
Interface Configuration (gigabitethernet, port-channel, tengigabitethernet,
fortygigabitethernet) mode
User Guidelines
If Dynamic ARP Inspection packets are received on a port at a rate that
exceeds the threshold for a specified time, that port will be diagnostically
disabled. The threshold is configurable up to 300 pps, and the burst is
configurable up to 15s long. The default is 15 pps and 1s burst.
Use the no shut command to bring the port back in to service.
Example
console(config-if-1/0/1)#ip arp inspection limit none
console(config-if-1/0/1)#ip arp inspection limit rate
100 burst interval 2
2CSPC4.X8100-SWUM100.book Page 386 Wednesday, August 29, 2012 6:23 PM