Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
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Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
duplex
If both the speed and duplex are set to specific values, autonegotiation is disabled.
Caution Changing the interface speed and duplex mode configuration might shut down and re-enable the
interface during the reconfiguration.
Note For guidelines on setting the switch speed and duplex parameters, see the software configuration guide
for this release.
Examples This example shows how to configure an interface for full duplex operation:
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# duplex full
You can verify your setting by entering the show interfaces privileged EXEC command.
Related Commands Command Description
show interfaces Displays the interface settings on the switch.
speed Sets the speed on a 10/100/1000 Mbps interface.