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Cisco Catalyst 4500 Series Configuration Guide

Cisco Catalyst 4500 Series
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7-21
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
OL-25340-01
Chapter 7 Configuring Interfaces
Configuring Optional Interface Features
Setting the Interface Duplex Mode
Note When the interface is set to 1000 Mbps, you cannot change the duplex mode from full duplex to half
duplex.
To set the duplex mode of a Fast Ethernet interface, perform this task:
This example shows how to set the interface duplex mode to full on Fast Ethernet interface 5/4:
Switch(config)# interface fastethernet 5/4
Switch(config-if)# duplex full
Displaying the Interface Speed and Duplex Mode Configuration
To display the interface speed and duplex mode configuration for an interface, enter this command:
This example shows how to display the interface speed and duplex mode of Fast Ethernet interface 6/1:
Switch# show interface fastethernet 6/1
FastEthernet6/1 is up, line protocol is up
Hardware is Fast Ethernet Port, address is 0050.547a.dee0 (bia 0050.547a.dee0)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:54, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 50/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
50 packets input, 11300 bytes, 0 no buffer
Received 50 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
1456 packets output, 111609 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
1 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Switch#
Command Purpose
Step 1
Switch(config)# interface fastethernet
slot/interface
Specifies the interface to be configured.
Step 2
Switch(config-if)# duplex [auto | full | half]
Sets the duplex mode of the interface.
Command Purpose
Switch# show interfaces [fastethernet |
gigabitethernet | tengigabitethernet]
slot/interface
Displays the interface speed and duplex mode
configuration.

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Cisco Catalyst 4500 Series Specifications

General IconGeneral
SeriesCatalyst 4500 Series
CategorySwitch
Layer SupportLayer 2, Layer 3
Form FactorModular chassis
StackableNo
Chassis Slots3, 6, 7, 10
Power Supply OptionsAC, DC
RedundancyPower supply, Supervisor engine
Network ManagementCisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
FeaturesSecurity, QoS
Port DensityUp to 384 ports per chassis
Security Features802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine8-E

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