Specifications

27-18

Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide

78-11380-07

Chapter 27 Configuring QoS

Configuring Standard QoS

Note Both the SI and EI support this feature.

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 27-4

shows a sample network topology.

Figure 27-4 Port Trusted States within the QoS Domain

81163

Catalyst

3550-12T switch

Trunk

Trusted interface

Classification

of traffic

performed here

Catalyst 2950

wiring closet