This command enables auto-negotiation for a given interface. Use the no
negotiation
form to disable auto-negotiation.
S
YNTAX
[no] negotiation
D
EFAULT
Enabled
C
OMMAND
Interface Configuration (Ethernet, Port Channel)
C
OMMAND
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
negotiation is disabled, you must manually specify the link attributes
with the
If auto-negotiation is disabled, auto-MDI/MDI-X pin signal configuration
◆
will also be disabled for the RJ-45 ports.
E
XAMPLE
The following example configures port 10 to use auto-negotiation.
Console(config)#interface ethernet 1/10
Console(config-if)#negotiation
Console(config-if)#
R
ELATED
capabilities (721)
speed-duplex (726)
This command disables an interface. To restart a disabled interface, use
shutdown
the no form.
S
YNTAX
[no] shutdown
D
EFAULT
All interfaces are enabled.
C
OMMAND
Interface Configuration (Ethernet, Port Channel)
S
ETTING
M
ODE
U
SAGE
speed-duplex
and
flowcontrol
C
OMMANDS
S
ETTING
M
ODE
– 725 –
| Interface Commands
C
27
HAPTER
capabilities
command. When auto-
commands.