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
bandwidth
• The amount of bandwidth configured should be large enough to accommodate Layer 2 overhead.
• A policy map can have all the class bandwidths specified in either kbps or in percentages, but not a
mix of both.
Examples This example shows how to set the minimum bandwidth to 2000 kbps for a class called silver-class. The
class already exists in the switch configuration:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# policy-map polmap6
Switch(config-pmap)# class silver-class
Switch(config-pmap-c)# bandwidth 2000
Switch(config-pmap-c)# end
This example shows how to guarantee 30 percent of the bandwidth for class1 and 25 percent of the
bandwidth for class2 when CBWFQ is configured. A policy map with two classes is created and is then
attached to a physical port:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# policy-map policy1
Switch(config-pmap)# class class1
Switch(config-pmap-c)# bandwidth percent 50
Switch(config-pmap-c)# exit
Switch(config-pmap)# class class2
Switch(config-pmap-c)# bandwidth percent 25
Switch(config-pmap-c)# exit
Switch(config-pmap)# end
Switch(config)# interface gigabitethernet1/1
Switch(config-if)# service-policy input policy1
Switch(config-if)# end
This example shows how bandwidth is guaranteed if low-latency queueing (LLQ) and bandwidth are
configured. In this example, LLQ is enabled in a class called voice1.
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# policy-map policy1
Switch(config-pmap)# class class1
Switch(config-pmap-c)# bandwidth remaining percent 50
Switch(config-pmap-c)# exit
Switch(config-pmap)# class class2
Switch(config-pmap-c)# bandwidth remaining percent 25
Switch(config-pmap-c)# exit
Switch(config-pmap)# class voice1
Switch(config-pmap-c)# priority
Switch(config-pmap-c)# exit
Switch(config-pmap)# end
Switch(config)# interface gigabitethernet1/1
Switch(config-if)# service-policy output policy1
Switch(config-if)# end
You can verify your settings by entering the show policy-map privileged EXEC command.

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