3Com 9100 manual Verifying Configuration Performance, Displaying QoS Information QoS Monitor

Verifying Configuration and Performance 107

Verifying

Configuration and

Performance

Displaying QoS

Information

QoS Monitor

The following information is used to verify the QoS configuration and monitor the use of the QoS policies that are in place.

To display QoS information on the switch, use the following command:

show qosprofile <qosname>

Information displayed includes:

■QoS profile name

■Minimum bandwidth

■Maximum bandwidth

■Priority

■A list of all traffic groups to which the QoS profile is applied

Additionally, QoS information can be displayed from the traffic grouping perspective by using one or more of the following applicable commands:

■show fdb permanent — Displays destination MAC entries and their QoS profiles.

■show vlan — Displays the QoS profile assignments to the VLAN.

■show ports info — Displays information including QoS information for the port.

The QoS monitor is a utility that monitors the hardware queues associated with any port(s). The QoS monitor keeps track of the number of frames and the frames per second that a specific queue is responsible for transmitting on a physical port. Two options are available: a real-time display, and a separate option for retrieving information in the background and writing it to the log.

The real-time display scrolls through the given portlist to provide statistics. The particular port being monitored at that time is indicated by an asterisk (*) appearing after the port number in the display. The command for real-time viewing is as follows:

show ports {<portlist>} qosmonitor