I
NTERFACE
C
OMMANDS
3-91
10full - Forces 10 Mbps full-duplex operation
10half - Forces 10 Mbps half-duplex operation
Default Setting
• Auto-negotiation is enabled by default.
• When auto-negotiation is disabled, the default speed-duplex
setting is 100half for 100BASE-TX ports and 1000full for Gigabit
Ethernet ports.
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• To force operation to the speed and duplex mode specified in
a speed-duplex command, use the no negotiation command
to disable auto-negotiation on the selected interface.
• When using the negotiation command to enable
auto-negotiation, the optimal settings will be determined by the
capabilities command. To set the speed/duplex mode under
auto-negotiation, the required mode must be specified in the
capabilities list for an interface.
Example
The following example configures port 5 to 100 Mbps, half-duplex
operation.
Related Commands
negotiation (3-92)
capabilities (3-93)
Console(config)#interface ethernet 1/5
Console(config-if)#speed-duplex 100half
Console(config-if)#no negotiation
Console(config-if)#