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Catalyst 6500 Series Switch Command Reference—Release8.1
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Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands
set port duplex
set port duplexTo configure the duplex type of an Ethernet port or a range of ports, use the set port duplex command .
set port duplex mod/port {full | half}
Syntax Description
Defaults The default configuration for 10-Mbps and 100-Mbps modules has all Ethernet ports set to half duplex.
Command Types Switch command.
Command Modes Privileged.
Usage Guidelines You can configure Ethernet and Fast Ethernet interfaces to either full duplex or half duplex.
The set port duplex command is not supported on Gigabit Ethernet ports. Gigabit Ethernet ports support
full-duplex mode only.
If the transmission speed on a 16-port RJ-45 Gigabit Ethernet port is set to 1000, duplex mode is set to
full. If the transmission speed is changed to 10 or 100, the duplex mode st ays at full. You must configure
the correct duplex mode when transmission speed is changed to 10 or 1 00 fro m 100 0.
Examples This example shows how to set port 1 on module 2 to full duplex:
Console> (enable) set port duplex 2/1 full
Port 2/1 set to full-duplex.
Console> (enable)
Related Commands show port
mod/port Number of the module and the port on the module.
full Specifies full-duplex transmission.
half Specifies half-duplex transmission.