36-35
Cisco Catalyst Blade Switch 3130 for Dell Software Configuration Guide
OL-13270-01
Chapter36 Configuring QoS Configuring Standard QoS
Use the no mls qos vlan-based interface 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 36-42:
Configuring the Trust State on Ports within the QoS Domain, page36-35
Configuring the CoS Value for an Interface, page36-37
Configuring a Trusted Boundary to Ensure Port Security, page 36-38
Enabling DSCP Transparency Mode, page36-39
Configuring the DSCP Trust State on a Port Bordering Another QoS Domain, page 36-40

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 36-12 shows a sample network topology.