ip icmp error-interval

Use ip icmp error-interval to set the bucket size and the interval for tokens to arrive in the bucket for ICMP error messages.

Use undo ip icmp error-interval to restore the default.

Syntax

ip icmp error-interval interval [ bucketsize ]

undo ip icmp error-interval

Default

The bucket allows a maximum of 10 tokens, and a token is placed in the bucket every 100 milliseconds.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies the interval for tokens to arrive in the bucket. The value range is 0 to 2147483647 milliseconds. To disable the ICMP rate limit, set the value to 0.

bucketsize: Specifies the maximum number of tokens allowed in the bucket. The value range is 1 to 200.

Usage guidelines

This command limits the rate at which ICMP error messages are sent. Use this command to avoid sending excessive ICMP error messages within a short period that might cause network congestion. A token bucket algorithm is used with one token representing one ICMP error message.

A token is placed in the bucket at intervals until the maximum number of tokens that the bucket can hold is reached.

A token is removed from the bucket when an ICMP error message is sent. When the bucket is empty, ICMP error messages are not sent until a new token is placed in the bucket.

Examples

# Set the bucket size to 40 tokens and the interval for tokens to arrive in the bucket to 200 milliseconds for ICMP error messages.

<Sysname> system-view
[Sysname] ip icmp error-interval 200 40