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 milliseconds [ bucketsize ]

undo ip icmp error-interval

Default

The bucket allows a maximum of 10 tokens, and tokens are placed in the bucket at the interval of 100 milliseconds.

Views

System view

Predefined user roles

network-admin

Parameters

milliseconds: Specifies the interval for tokens to arrive in the bucket. The value range is 0 to 2147483647 milliseconds, and the default is 100 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, and the default is 10.

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. Tokens are placed in the bucket at intervals until the maximum number of tokens that the bucket can hold is reached. Tokens are removed from the bucket when ICMP error messages are sent. When the bucket is empty, ICMP error messages are not sent until a new token is placed in the bucket.

Examples

# Configure an interval of 200 milliseconds and bucket size of 40 tokens for ICMP error messages.

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