Allied Telesis AT-S62 - Manual (Page 206)

Chapter 12: File System Commands
206 Section II: Advanced Operations
Examples
The following command selects the file switch22.cfg as the new active
boot configuration file for the switch:
set config=switch22.cfg
The following command uses the NONE option to remove the current
active boot configuration file without specifying a new one. The switch
does not allow you to save any further changes to the switch’s
configuration until you specify another configuration file with the SET
CONFIG command. If you reset the unit, it uses the BOOT.CFG file to
configure its settings:
set config=none