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
set
set
To mark IP traffic by setting a class of service (CoS), a Differentiated Services Code Point (DSCP), or
IP-precedence in the packet, use the set policy-map class configuration command. To remove the traffic
classification, use the no form of this command.
set {cos new-cos | [ip] {dscp new-dscp | precedence new-precedence} | qos group value}
no set cos new-cos | ip {dscp new-dscp | precedence new-precedence} | qos group value}
Syntax Description
Defaults No marking is enabled on packets.
Command Modes Policy-map class configuration mode
Command History
Usage Guidelines You can use the set command only in class-level classes.
The set dscp new-dscp and the set precedence new-precedence commands are the same as the set ip
dscp new-dscp and the set ip precedence new-precedence commands.
For the set dscp new-dscp or the set precedence new-precedence command, you can enter a mnemonic
name for a commonly used value. For example, you can enter the set dscp af11 command, which is the
as same entering the set dscp 10
command. You can enter the set precedence critical command, which
is the same as entering the set precedence 5 command. For a list of supported mnemonics, enter the set
dscp ? or the set precedence ? command to see the command-line help strings.
You can configure the set cos new-cos, set dscp new-dscp, or set precedence new-precedence command
in an ingress and an egress policy map attached to an interface or VLAN.
To return to policy-map configuration mode, use the exit command. To return to privileged EXEC mode,
use the end command.
cos new-cos New CoS value assigned to the classified traffic. The range is 0 to 7.
ip dscp new-dscp New DSCP value assigned to the classified traffic. The range is
0 to 63. You also can enter a mnemonic name for a commonly used
value. The specified value sets the type of service (ToS) traffic class
byte in the IPv4/IPv6 packet header.
ip precedence new-precedence New IP-precedence value assigned to the classified traffic. The
range is 0 to 7. You also can enter a mnemonic name for a
commonly used value. The specified value sets the precedence bit
in the IP header.
qos group value Internal QoS group assigned to a classified packet on ingress to an
interface.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
12.2(40)SG Added support for Supervisor Engine 6-E and Catalyst 4900M chassis.

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