Duplex - Cisco Nexus 5000 Series Command Reference Manual

D Commands

duplex

To specify the duplex mode as full, half, or autonegotiate, use the duplex command. To return the system to
default mode, use the no form of this command.
duplex {full| half| auto}
no duplex {full| half| auto}
Syntax Description
full
half
auto
Command Default
None
Command Modes
Interface configuration mode
network-adminvdc-admin
Command History
Release
5.1(3)N1(1)
Usage Guidelines
The interface speed that you specify can affect the duplex mode used for an interface, so you should set the
speed before setting the duplex mode. If you set the speed for autonegotiation, the duplex mode is automatically
set to be autonegotiated. If you specify 10- or 100-Mbps speed, the port is automatically configured to use
half-duplex mode, but you can specify full-duplex mode instead. Gigabit Ethernet is full duplex only. You
cannot change the duplex mode on Gigabit Ethernet ports or on a 10/100/1000-Mbps port that is set for Gigabit
Ethernet.
See the Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide for more information on
interface speed and duplex settings.
This command does not require a license.
Examples This example shows how to specify the duplex mode for full duplex:
switch#
configure
terminal switch(config)#
Specifies the duplex mode as full.
Specifies the duplex mode as half.
This keyword is not supported on a
Note
management interface.
Specifies the duplex mode as autonegotiate.
Modification
This command was introduced.
Cisco Nexus 5000 Series Interfaces Command Reference
duplex
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