HP ProCurve 5300xl Series Management Manual page 332

Quality of Service (QoS): Managing Bandwidth More Effectively
Using QoS Classifiers To Configure Quality of Service for Outbound Traffic
8-58
Syntax: no interface < port-list > qos
Disables use of the specified source-port(s) for QoS classi­
fier(s) and resets the priority for the specified source-port(s)
to No-override
Syntax: show qos port-priority
Lists the QoS port-priority classifiers with their priority
data.
For example, suppose that you want to prioritize inbound traffic on the
following source-ports:
Source-Port Priority
A1 - A3 2
A4 3
B1, B4 5
C1-C3 6
You would then execute the following commands to prioritize traffic received
on the above ports:
Figure 8-31. Configuring and Displaying Source-Port QoS Priorities
.