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AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009 CLI-based Configuration Guide - Ethernet Switching

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Configuring the Router to Discard Packets with an All-0 MAC Address

Configuring the Router to Discard Packets with an All-0 MAC Address

Context

A faulty network device may send packets with an all-0 source or destination MAC address to the router. You can configure the router to discard such packets and send an alarm to the network management system (NMS). You can locate the faulty device according to the alarm.

You can configure the router to discard packets with an all-0 source or destination MAC address.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run drop illegal-mac enable

    The router is configured to discard packets with an all-0 MAC address.

    By default, the router does not discard packets with an all-0 MAC address.

    NOTE:

    The AR100-S&AR110-S&AR120-S&AR150-S&AR160-S&AR200-S&AR1200-S series, AR2204-27GE-S, AR2220E-S, and AR2240C-S do not support discarding packets with an all-0 MAC address.

    The 4GE-2S, 4ES2G-S, 4ES2GP-S, and 9ES2 cards do not support discarding packets with an all-0 MAC address.

  3. (Optional) Run drop illegal-mac alarm

    The router is configured to send an alarm to the NMS when receiving packets with an all-0 MAC address.

    By default, the router does not send an alarm to the NMS when receiving packets with an all-0 MAC address.

    NOTE:

    The router sends only one alarm after receiving packets with an all-0 MAC address. To enable the router to send an alarm again after receiving packets with an all-0 MAC address, run the drop illegal-mac alarm command.

Verifying the Configuration

Run the display current-configuration command to check whether the router is configured to discard packets with an all-0 MAC address.

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Updated: 2019-05-17

Document ID: EDOC1000174108

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