Enabling the Stacking Function
Context
Before enabling the stacking function on a switch, run the display stack configuration command to check the stack configuration. Enable the stacking function after you verify that the stack configuration is correct.
The switch restarts after you enable or disable the stacking function. Before the restart, the switch backs up the running configuration in flash:/ and names the backup configuration file by adding the file backup time (in the yyyymmddhhmmss format) to the original configuration file name. For example, if the original configuration file is vrpcfg.cfg and you enable the stacking function at 11:17:16 on 2012-12-11, the backup configuration file is named vrpcfg20121211111716.cfg.
After you disable the stacking function, the switch restarts without a configuration file.