Administrator Guide

Layer 3 Routing Commands 1552
ip icmp error-interval
Use the ip icmp error-interval command to limit the rate at which IPv4
ICMP error messages are sent. The rate limit is configured as a token bucket
with two configurable parameters: Burst-size and burst-interval.
To disable ICMP rate limiting, set burst-interval to zero. Use the no form of
this command to return burst-interval and burst-size to their default values.
Syntax
ip icmp error-interval burst-interval [ burst-size ]
no ip icmp error-interval
• burst-interval — How often the token bucket is initialized (Range:
0–2147483647 milliseconds).
•
burst-size — The maximum number of messages that can be sent during a
burst interval (Range: 1–200).
Default Configuration
Rate limiting is enabled by default.
The default burst-interval is 1000 milliseconds.
The default burst-size is 100 messages.
Command Mode
Global Configuration mode, Virtual Router Configuration mode
User Guidelines
There are no user guidelines for this command.
When in Virtual Router Configuration mode, this command operates within
the context of the virtual router instance. When in Global Configuration
mode, the command operates on the global router instance.
Virtual Router Configuration mode is only available on the N3000/N4000
switches.
Example
console(config)#ip icmp error-interval 1000 20
2CSNXXX_SWUM204.book Page 1552 Monday, January 25, 2016 1:25 PM