Dell PowerConnect 5524P User Manual page 648

To select the priority method and enter WRR weights:
1 Click Quality of Service > General > Queue in the tree view to display
the Queue page.
Figure 22-3. Queue
The queues are displayed.
2 Enter the parameters for the queues:
– Strict Priority — Check to indicate that traffic scheduling for the
selected queue, and all higher queues, is based strictly on the queue
priority.
– WRR — Check to indicate that traffic scheduling for the selected
queue is based on WRR. The time period is divided between the
WRR queues that are not empty, meaning they have descriptors to
egress. This happens only if strict priority queues are empty.
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Dell PowerConnect 55xx Systems User Guide