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S12700 V200R010C00 Configuration Guide - Device Management

This document describes the principles and configurations of the Device Management features, and provides configuration examples of these features.

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Configuring a System MAC Address

Configuring a System MAC Address


The MAC address of the master switch is used as the system MAC address of the CSS when the CSS is set up. If you restart the CSS or remove and replace an MPU in the CSS, the system MAC address may change, resulting in service interruption. To avoid this problem, set the system MAC address to the MAC address of a member switch which remains unchanged after the CSS restarts.


  1. Run the system-view command to enter the system view.
  2. Run the set css system-mac chassis chassis-id command to set the system MAC address of the CSS to the MAC address of a member switch.


    If the specified MAC address is the same as the current system MAC address of the CSS, the configuration takes effect immediately. Otherwise, you need to restart the CSS to make the configuration take effect.

Updated: 2019-12-28

Document ID: EDOC1000142080

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