Allied Telesis AT-S63 - Manual (Page 327)

AT-S63 Management Software Menus Interface User’s Guide
Section II: Advanced Operations 327
5. Type 2 to select Priority (0 - 7). The following prompt is displayed:
Enter new value -> [0 to 7]
6. Enter a new temporary priority value of 0 to 7 for the untagged frames
received on the port. For example, to assign a temporary priority level
of 4 to the ingress untagged packets, enter 4. The default is 0. (If you
perform Step 7 and override the priority level in ingress tagged
packets, this temporary priority value will also apply to those packets
as well.)
7. If you are configuring a tagged port and you want the switch to ignore
the priority tag in ingress tagged frames, type 3 to select Override
Priority and type Y.
All ingress tagged frames use the temporary priority level specified in
Step 6.
Note
CoS does not change the tagged information in a frame. A tagged
frame leaves a 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
frames themselves.
8. Type C to select Configure Port COS Priorities.
A change to a port CoS setting is immediately activated on the port.
9. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.