Disabling Gratuitous ARP Packet Sending

You can disable an interface from sending gratuitous ARP packets to prevent CPU overload.

Context

If a device has a large number of interfaces and all interfaces are Up and are allocated IP addresses, the device may keep sending gratuitous ARP packets, consuming excessive CPU resources. As a result, services are affected. To prevent CPU overload, you can disable an interface from sending gratuitous ARP packets.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. Run arp gratuitous-arp send disable

    The interface is disabled from sending gratuitous ARP packets.

    Using the arp gratuitous-arp send disable command will prevent sending gratuitous arp packet, and may cause IP collision detection failure and coservices to be interrupted. Exercise caution when running this command.

  4. Run commit

    The configuration is committed.

Parent Topic: Configuring Anti-ARP Flooding
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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