33-35
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Chapter 33 Configuring QoS
Displaying Auto-QoS Information
Displaying Auto-QoS Information
To display the initial auto-QoS configuration, use the show auto qos [interface [interface-id]]
privileged EXEC command. To display any user changes to that configuration, use the show
running-config privileged EXEC command. You can compare the show auto qos and the show
running-config command output to identify the user-defined QoS settings.
To display information about the QoS configuration that might be affected by auto-QoS, use one of these
commands:
show mls qos
show mls qos maps cos-dscp
show mls qos interface [interface-id] [buffers | queueing]
show mls qos maps [cos-dscp | cos-input-q | cos-output-q | dscp-cos | dscp-input-q |
dscp-output-q]
show mls qos input-queue
show running-config
Note Catalyst 2960-S switches do not support ingress queueing.
Configuring Standard QoS
Before configuring standard QoS, you must have a thorough understanding of these items:
The types of applications used and the traffic patterns on your network.
Traffic characteristics and needs of your network. Is the traffic bursty? Do you need to reserve
bandwidth for voice and video streams?
Bandwidth requirements and speed of the network.
Location of congestion points in the network.
These sections contain this configuration information:
Default Standard QoS Configuration, page 33-36
Standard QoS Configuration Guidelines, page 33-38
Enabling QoS Globally, page 33-40 (required)
Configuring Classification Using Port Trust States, page 33-40 (required
Configuring a QoS Policy, page 33-47 (required)
Configuring DSCP Maps, page 33-61 (optional, unless you need to use the
DSCP-to-DSCP-mutation map or the policed-DSCP map)
Configuring Ingress Queue Characteristics, page 33-67 (optional)
Configuring Egress Queue Characteristics, page 33-72 (optional)