Configuring A Qos Policy; Classifying Traffic By Using Acls; Classifying Traffic By Using Class Maps - Cisco Catalyst 2950 Software Configuration Manual

Configuring Standard QoS
If you enter the mls qos trust cos pass-through dscp interface configuration command when the mls
qos cos override and the mls qos trust [cos | dscp] interface commands are already configured,
pass-through mode is disabled.

Configuring a QoS Policy

This feature is available only if your switch is running the EI.
Note
Configuring a QoS policy typically requires classifying traffic into classes, configuring policies applied
to those traffic classes, and attaching policies to interfaces.
For background information, see the
Marking" section on page
This section contains this configuration information:
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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
29-26
29-7.
Classifying Traffic by Using ACLs, page 29-27
Classifying Traffic by Using Class Maps, page 29-30
Classifying, Policing, and Marking Traffic by Using Policy Maps, page 29-31
"Classification" section on page 29-5
Chapter 29 Configuring QoS
and the "Policing and
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