28-26
Catalyst 3560 Switch Software Configuration Guide
78-16156-01
Chapter 28 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
For more information about these commands, refer to the command reference for this release.
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 describe how to configure QoS on your switch:
•
Default Standard QoS Configuration, page 28-27
•
Standard QoS Configuration Guidelines, page 28-29
•
Enabling QoS Globally, page 28-30
(required)
•
Configuring Classification Using Port Trust States, page 28-30
(required
•
Configuring a QoS Policy, page 28-36
(required)
•
Configuring DSCP Maps, page 28-47
(optional, unless you need to use the
DSCP-to-DSCP-mutation map or the policed-DSCP map)
•
Configuring Ingress Queue Characteristics, page 28-52
(optional)
•
Configuring Egress Queue Characteristics, page 28-57
(optional)
