Using the slave restart command, you can reload the system software of the standby device and then restart it.
Devices that do not support the stack function or do not have the stack function enabled do not support this function.
To upgrade the system software in-service, first upgrade the software on the standby device when the master device works normally, and then restart the standby device. After the standby device is ready, perform active/standby switchover and upgrade the software on the master device.
The command may interrupt services on the device. Therefore, exercise caution when using this command.