| Interface Commands
C
26
HAPTER
Interface Configuration
shutdown
C
U
OMMAND
SAGE
◆
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
speed-duplex
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
C
ELATED
OMMANDS
capabilities (969)
speed-duplex (975)
This command disables an interface. To restart a disabled interface, use
the no form.
S
YNTAX
[no] shutdown
D
S
EFAULT
ETTING
All interfaces are enabled.
C
M
OMMAND
ODE
Interface Configuration (Ethernet, Port Channel)
C
U
OMMAND
SAGE
This command allows you to disable a port due to abnormal behavior
(e.g., excessive collisions), and then re-enable it after the problem has
been resolved. You may also want to disable a port for security reasons.
E
XAMPLE
The following example disables port 5.
Console(config)#interface ethernet 1/5
Console(config-if)#shutdown
Console(config-if)#
– 974 –
capabilities
command. When auto-
and
flowcontrol
commands.