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
speed
Usage Guidelines Table 2-44 lists the supported command options by interface.
If you configure the interface speed and duplex commands manually and enter a value other than
speed auto (for example, 10 or 100 Mbps), make sure that you configure the connecting interface speed
command to a matching speed but do not use the auto parameter.
When manually configuring the interface speed to either 10 or 100 Mbps, the switch prompts you to also
configure duplex mode on the interface.
Note Catalyst 4506 switches cannot automatically negotiate the interface speed and the duplex mode if either
connecting interface is configured to a value other than auto.
Caution Changing the interface speed and the duplex mode configuration might shut down and reenable the
interface during the reconfiguration.
Table 2-45 describes the system’s performance for different combinations of the duplex and speed
modes. The specified duplex command that is configured with the specified speed command produces
the resulting system action.
Table 2-44 Supported speed Command Options
Interface Type Supported Syntax Default Setting Guidelines
10/100-Mbps
module
speed [10 | 100 |
auto]
auto If the speed is set to 10 or 100 and
you do not configure the duplex
setting, the duplex is set to half.
100-Mbps fiber
modules
Not applicable. Not applicable. Not applicable.
Gigabit Ethernet
Interface
speed nonegotiate nonegotiate is
enabled.
This is only applicable to Gigabit
Ethernet ports.
10/100/1000 speed [10 | 100 |
1000 | auto]
auto If the speed is set to 10 or 100 and
you do not configure the duplex
setting, the duplex is set to half.
If the speed is set to 1000 or auto with
any subset containing 1000
(e.g. speed auto 10 1000 or
speed auto on a 10/100/1000 port),
you will not able to set half duplex.
1000 Not applicable. Not applicable. The speed is always 1000.
The duplex is half.

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