Name: Cisco 2950 - Catalyst Switch
Brand: Cisco
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30-26

Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide

78-11380-10

Chapter 30 Configuring QoS

Configuring Standard QoS

To disable pass-through mode, use the no mls qos trust pass-through dscp interface configuration

command.

If you enter the mls qos cos override and the mls qos trust [cos | dscp] interface commands when

pass-through mode is enabled, pass-through mode is disabled.

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

Note This feature is available only if your switch is running the EI.

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 “Classification” section on page 30-5 and the “Policing and

Marking” section on page 30-7.

This section contains this configuration information:

• Classifying Traffic by Using ACLs, page 30-27

• Classifying Traffic by Using Class Maps, page 30-30

• Classifying, Policing, and Marking Traffic by Using Policy Maps, page 30-31

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Cisco 2950 - Catalyst Switch Specifications

General