CLI Reference Guide-R03

Chapter 10 | Interface Commands
Interface Configuration
– 350 –
negotiation This command enables auto-negotiation for a given interface. Use the no form to
disable auto-negotiation.
Syntax
[no] negotiation
Default Setting
Enabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
◆ 1000BASE-T does not support forced mode. Auto-negotiation should always be
used to establish a connection over any 1000BASE-T port or trunk.
◆ When auto-negotiation is enabled the switch will negotiate the best settings
for a link based on the capabilities command. When auto-negotiation is
disabled, you must manually specify the link attributes with the speed-duplex
and flowcontrol commands.
◆ If auto-negotiation is disabled, auto-MDI/MDI-X pin signal configuration will
also be disabled for the RJ-45 ports.
Example
The following example configures port 11 to use auto-negotiation.
Console(config)#interface ethernet 1/11
Console(config-if)#negotiation
Console(config-if)#
Related Commands
capabilities (347)
speed-duplex (351)
shutdown This command disables an interface. To restart a disabled interface, use the no
form.
Syntax
[no] shutdown
Default Setting
All interfaces are enabled.
Command Mode
Interface Configuration (Ethernet, Port Channel)