Configuring Classification Using Port Trust States - Cisco Catalyst 3750-E Software Configuration Manual

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Configuring QoS

Configuring Classification Using Port Trust States

These sections describe how to classify incoming traffic by using port trust states. Depending on your

network configuration, you must perform one or more of these tasks or one or more of the tasks in the

"Configuring a QoS Policy" section on page

Configuring the Trust State on Ports within the QoS Domain

Packets entering a QoS domain are classified at the edge of the QoS domain. When the packets are

classified at the edge, the switch port within the QoS domain can be configured to one of the trusted

states because there is no need to classify the packets at every switch within the QoS domain.

Figure 37-14

Configuring the Trust State on Ports within the QoS Domain, page 37-43

Configuring the CoS Value for an Interface, page 37-44

Configuring a Trusted Boundary to Ensure Port Security, page 37-45

Enabling DSCP Transparency Mode, page 37-46

Configuring the DSCP Trust State on a Port Bordering Another QoS Domain, page 37-47

shows a sample network topology.

Port Trusted States within the QoS Domain

Trusted boundary

Trusted interface

Traffic classification

performed here

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

Configuring Standard QoS

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