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
bandwidth
To specify or modify the minimum bandwidth provided to a class belonging to a policy map attached to
a physical port, use the bandwidth policy-map class command. To return to the default setting, use the
no form of this command.
bandwidth {bandwidth-kbps | percent percent | remaining percent percent}
no bandwidth
Syntax Description
Defaults No bandwidth is specified.
Command Modes Policy-map class configuration mode
Command History
Usage Guidelines Use the bandwidth command only in a policy map attached to a physical port.
The bandwidth command specifies the minimum bandwidth for traffic in that class when there is traffic
congestion in the switch. If the switch is not congested, the class receives more bandwidth than you
specify with this command.
When queuing class is configured without any explicit bandwidth configuration, since the queue is not
guaranteed any minimum bandwidth, this queue will get a share of any unallocated bandwidth on the
port.
If there is no unallocated bandwidth for the new queue or if the unallocated bandwidth is not sufficient
to meet the minimum configurable rate for all queues which do not have any explicit bandwidth
configuration, then the policy association is rejected.
These restrictions apply to the bandwidth command:
• If the percent keyword is used, the sum of the class bandwidth percentages within a single policy
map cannot exceed 100 percent. Percentage calculations are based on the bandwidth available on the
port.
bandwidth-kbps Amount of bandwidth in kbps assigned to the class. The range is 32 to
16000000.
percent percent Percentage of available bandwidth assigned to the parent class. The
range is 1 to 100.
remaining percent percent Percentage of remaining bandwidth assigned to parent class. The range
is 1 to 100. This command is supported only when priority queuing class
is configured, and the prioity queuing class is not rate-limited.
Release Modification
12.2(40)SG This command was introduced on the Catalyst 4500 series switch using a
Supervisor Engine 6E.

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