Chapter 2

Quality of Service (QoS)

Software release 06.6.X provides the following enhancements to QoS on the HP 9304M, HP 9308M, and HP 6208M-SX routing switches.

•You can choose between a strict queuing method and a weighted queuing method.

•You can modify the minimum guaranteed percentage of bandwidth for each queue.

•You can apply a QoS profile (one of the four queues) to 802.1q tagged VLAN packets.

•You can display the percentage of an uplink’s bandwidth that each of a given set of ports uses. This is especially useful in environments where collocated customers on different, isolated ports share common uplink ports.

These new features add flexibility to the QoS features in earlier software releases but do not replace them.

The Queues

HP 9304M, HP 9308M, and HP 6208M-SX routing switches use the following queues:

•qosp3 – The highest priority queue. This queue corresponds to 802.1p prioritization levels 6 and 7 and HP priority levels 6 and 7.

•qosp2 – The second-highest priority queue. This queue corresponds to 802.1p prioritization levels 4 and 5 and HP priority levels 4 and 5.

•qosp1 – The third-highest priority queue. This queue corresponds to 802.1p prioritization levels 2 and 3 and HP priority levels 2 and 3.

•qosp0 – The lowest priority queue. This queue corresponds to 802.1p prioritization levels 0 and 1 and HP priority levels 0 and 1.

The queue names listed above are the default names. You can rename the queues if you want, as described in “Renaming the Queues” on page 2-4”.

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