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Configuration Guide - Device Management

S9300, S9300E, and S9300X V200R012C00

This document describes the configurations of Device Management, including device status query, hardware management, CSS, SVF, PoE, OPS, OIDS, energy-saving management, information center, fault management, NTP, synchronous ethernet, PTP.
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Performing a Master/Standby Switchover

Performing a Master/Standby Switchover


If you want to adjust the roles of member switches in a CSS or restore the roles of member switches after a fast upgrade, perform a master/standby switchover to change the standby switch to the new master switch.

Figure 3-35 shows how the roles in both chassis 1 and 2 change after a master/standby switchover is triggered by a command.
Figure 3-35  Change of roles after a command-triggered master/standby switchover
  • The previous standby switch becomes the master switch, and the previous system standby MPU becomes the system master MPU.
  • The previous system master MPU becomes a candidate system standby MPU, and the previous master switch becomes the standby switch.
  • The standby MPU of the previous master switch becomes the system standby MPU and synchronizes data with the system master MPU.

Before running a command to perform a master/standby switchover, ensure that the master switch in the CSS has two MPUs.


  1. (Optional) Run the display switchover state command to check whether the CSS meets requirements for a switchover.
  2. Run the system-view command to enter the system view.
  3. Run the slave switchover enable command to enable master/standby switchover.

    By default, master/standby switchover is enabled.

  4. Run the slave switchover command to perform a master/standby switchover.
Updated: 2018-09-03

Document ID: EDOC1100038289

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