Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
qos trust
Trusted boundary should not be configured on the ports that are part of an EtherChannel (that is, a port
channel).
Examples This example shows how to set the trusted state of an interface to CoS:
Switch(config-if)# qos trust cos
Switch(config-if)#
This example shows how to set the trusted state of an interface to DSCP:
Switch(config-if)# qos trust dscp
Switch(config-if)#
This example shows how to set the PVID CoS level to 6:
Switch(config-if)# qos trust extend cos 6
Switch(config-if)#
This example shows how to set the Cisco phone as the trust device:
Switch(config-if)# qos trust device cisco-phone
Switch(config-if)#
Related Commands Command Description
queue-limit Defines per-VLAN QoS for a Layer 2 interface.
show qos interface Displays QoS information for an interface.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E