Quality of Service Overview
Figure 3
Hybrid Queuing
Hybrid queuing combines the properties of both strict and weighted fair queuing. Figure
page 7, depicts hybrid queuing. The configuration is for strict queuing on queue 3 and weighted
fair queuing for the remaining queues, with queue 2 receiving 50 percent of the remaining time
slices, and the other queues receiving 25 percent each. The benefit of hybrid queueing is that
queues configured as strict will receive all the bandwidth that is available in the order of their
priority until empty. Remaining bandwidth will be used by the weighted fair queues based upon
the time slice percentages configured. The down side remains that anytime strict queuing is used,
should the strict queues never fully empty, remaining queues will be starved of bandwidth.
February 22, 2008
Weighted Fair Queuing Packet Behavior
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