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Fat AP and Cloud AP V200R010C00 Command Reference

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icmp rate-limit

icmp rate-limit

Function

Using the icmp rate-limit command, you can configure the rate limit for ICMP packets globally or on an interface.

Using the undo icmp rate-limit command, you can restore the default rate limit for ICMP packets.

By default, the global rate limit and rate limit on an interface are both 100 pps.

Format

System view:

icmp rate-limit threshold threshold-value

Interface view:

icmp rate-limit threshold threshold-value

undo icmp rate-limit threshold

Parameters

Parameter

Description

Value

threshold threshold-value

Indicates the rate limit for ICMP packets.

The value is an integer ranging from 1 to 32768, in pps.

Views

System view, GE interface view, MultiGE interface view, XGE interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Guidelines

Before configuring the rate limit for ICMP packets, enable the AP to limit the rate of incoming ICMP packets by using the icmp rate-limit enable command.

The AP can be configured to limit the rate of incoming ICMP packets globally or on an interface, and discard excess ICMP packets when the rate of incoming ICMP packets exceeds the limit.

You can run the icmp rate-limit command to set a global rate limit for ICMP packets and run this command in multiple interface views to limit the rate of ICMP packets on these interfaces. The total rate of ICMP packets on all the interfaces cannot exceed the global rate limit.

Precautions

To make suppression of ICMP packets take effect, disable the fast ICMP reply function.

Example

# Set the rate limit for ICMP packets on GE 0/0/1 to 20 pps.

<Huawei> system-view
[Huawei] interface gigabitethernet 0/0/1
[Huawei-GigabitEthernet0/0/1] icmp rate-limit threshold 20
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Updated: 2019-11-21

Document ID: EDOC1100064352

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