Allied Telesis AT-S79 - Manual (Page 242)

Chapter 21: Basic Switch Parameters
242 Section II: Using the Web Browser Interface
Note
The two Reboot Type options Reset to Factory Default and are
Reset to Factory Default Except IP Address are described in
“Returning the AT-S79 Management Software to the Factory Default
Values” on page 245.
3. For the Reboot Status, select Start to start the reboot.
4. Click Apply. The switch immediately begins to reload the AT-S79
management software. This process takes approximately one minute
to complete. You can not manage the device during the reboot. After
the reboot is finished, you can log in again if you want to continue to
manage the device.