If a Catalyst 3550 switch is in the cluster, you can generate QoS reports and graphs for incoming or outgoing traffic on specific device interfaces. The reports and graphs are based on the packets that contain monitored DSCP values. You select the DSCP values that you want to monitor in the QoS Statistics window.
To generate a QoS report, choose Reports > QoS Reports. To generate a graph of the report information, choose Reports > QoS Graphs.