Allied Telesis AT-S62 - Manual (Page 660)

Chapter 41: Quality of Service
Section VIII: Web Browser Management 660
Note
The tagged information in a frame is not changed as the frame
traverses the switch. A tagged frame exits the switch with the same
priority level that it had when it entered.
The default for this parameter is No, meaning that the priority
level of tagged frames is determined by the priority level specified
in the frame itself.
7. Click Apply.
Configuration changes are immediately activated on the switch.
8. To permanently save the change, use the Save Changes button in the
General tab. For directions, refer to Saving Your Parameter Changes
on page 577.