Cisco Systems 3750E manual Configuring Classification Using Port Trust States, 36-38

Chapter 36 Configuring QoS

Configuring Standard QoS

Use the no mls qos vlan-basedinterface configuration command to disable VLAN-based QoS on the physical port.

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 36-45:

•Configuring the Trust State on Ports within the QoS Domain, page 36-38

•Configuring the CoS Value for an Interface, page 36-40

•Configuring a Trusted Boundary to Ensure Port Security, page 36-41

•Enabling DSCP Transparency Mode, page 36-42

•Configuring the DSCP Trust State on a Port Bordering Another QoS Domain, page 36-43

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 36-15shows a sample network topology.

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