Cisco Catalyst 2960 Software Configuration Manual page 781

Chapter 33 Configuring QoS
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 33-10
Figure 33-10
Beginning in privileged EXEC mode, follow these steps to configure the port to trust the classification
of the traffic that it receives:
Command
Step 1 configure terminal
Step 2
interface interface-id
OL-26520-01
shows a sample network topology.
Port Trusted States within the QoS Domain
Trusted interface
P3 P1
IP
Trusted boundary
Purpose
Enter global configuration mode.
Specify the port to be trusted, and enter interface configuration
mode.
Valid interfaces include physical ports.
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
Trunk
Traffic classification
performed here
Configuring Standard QoS
33-43