HP ProCurve Series 6120 Blade Switches Advanced Traffic Management Guide

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Quality of Service (QoS): Managing Bandwidth More Effectively
Differentiated Services Codepoint (DSCP) Mapping
Example of Changing the Priority Setting on a Policy
When One or More Classifiers Are Currently Using the Policy
Suppose that codepoint 1 is in use by one or more classifiers. If you try to
change its priority, you see a result similar to the following:
Figure 5-26. Example of Trying To Change the Priority on a Policy In Use by a
Classifier
In this case, you would use steps similar to the following to change the priority.
1. Identify which classifiers use the codepoint you want to change.
ProCurve(config)# qos dscp-map 1 priority 2
Cannot modify DSCP Policy 1 - in use by other qos rules.