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Default Configuration
Maximum port capability.
Command Mode
Interface Configuration (Ethernet, port-channel, out-of-band Ethernet) mode
User Guidelines
The command "no speed" in port-channel context returns each port in the port-channel to its maximum
capability.
Before attempting to force a particular duplex mode the port operating at 10/100 Mbps, disable the
auto-negotiation on that port.
Example
The following example configures the speed operation of Ethernet e5 to force 100-Mbps operation.
Console(config)# interface ethernet e5
Console(config-if)# speed 100
5.7.6 duplex
The duplex interface configuration command configures the full/half duplex operation of a given Ethernet
interface when not using auto-negotiation. To restore the default, use the no form of this command.
Syntax
duplex {half | full}
no duplex
half—Force half-duplex operation
full—Force full-duplex operation
Default Configuration
The interface is set to full duplex.
Command Mode
Interface Configuration (Ethernet, out-of-band Ethernet) mode
User Guidelines
Before attempting to force a particular duplex mode on the port operating at 10/100 Mbps, disable the
auto-negotiation on that port.
Half duplex mode can be set only for ports operating at 10 Mbps or 100 Mbps.
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