This applies to all TP-LINK Switches
Could have wished me the opportunity to restart the switch without the power also being turned off at all ports.
this is a huge problem when for example the OC200 is connected to the switch.
This is also a problem with software upgrade of switch. The OC200 is turned off when the switch is restarted after upgrading.
Some other switches have a choice not to turn off the power when rebooting.