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CLI-based Configuration Guide - Security

AR500, AR510, AR531, AR550, AR1500, and AR2500 V200R010

This document provides the basic concepts, configuration procedures, and configuration examples in different application scenarios of the network management feature supported by the device.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring Storm Control

Configuring Storm Control

Context

To limit the rate of excess broadcast, multicast or unknown unicast packets, configure storm control on the interface that receives these packets.

Pre-configuration Tasks

Before configuring the storm control function, complete the following tasks:

Configure link layer protocol parameters for interfaces to ensure that the link protocol status on the interfaces is Up.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run storm-control { broadcast | multicast | unicast } min-rate min-rate-value max-rate max-rate-value

    Storm control is performed on broadcast packets, multicast packets, or unknown unicast packets on the interface.

    By default, storm control is disabled on the interface.

  4. Run storm-control action { block | error-down }

    The storm control action is configured.

    By default, no storm control action is configured.

  5. (Optional) Run storm-control enable { log | trap }

    The function of recording logs or reporting traps during storm control is enabled.

    By default, the device is disabled from recording logs or reporting traps.

  6. (Optional) Run storm-control interval interval-value

    The storm detection interval is configured.

    By default, the storm detection interval is 5s.

Verifying the Configuration

Run the display storm-control [ interface interface-type interface-number ] command to check the storm control configuration on an interface.

Follow-up Procedure

If an interface is in Error-Down state, you are advised to determine the cause first.

An interface in Error-Down state can be recovered using either of the following methods:
  • Manual recovery (after an Error-Down event occurs):

    If a few interfaces need to be recovered, run the shutdown and undo shutdown commands in the interface view. Alternatively, run the restart command in the interface view to restart the interfaces.

  • Automatic recovery (before an Error-Down event occurs):

    If a large number of interfaces need to be recovered, manual recovery is time consuming and some interfaces may be omitted. To avoid this problem, run the error-down auto-recovery cause storm-control interval interval-value command in the system view to enable automatic interface recovery and set the recovery delay time. Run the display error-down recovery command to view information about automatic interface recovery.

    NOTE:

    This method does not take effect on interfaces that are already in Error-Down state. It is effective only on interfaces that enter the Error-Down state after this configuration is complete.

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Updated: 2019-08-09

Document ID: EDOC1100034236

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