Edge-Core ES3510MA, Management Manual

Page: 706 / 984

C
HAPTER
27
| Interface Commands
– 706 –
speed-duplex
This command configures the speed and duplex mode of a given interface
when auto-negotiation is disabled. Use the no form to restore the default.
S
YNTAX
speed-duplex { 100full | 100half | 10full | 10half }
no speed-duplex
100full - Forces 100 Mbps full-duplex operation
100half - Forces 100 Mbps half-duplex operation
10full - Forces 10 Mbps full-duplex operation
10half - Forces 10 Mbps half-duplex operation
D
EFAULT
S
ETTING
◆
Auto-negotiation is enabled by default.
◆
When auto-negotiation is disabled, the default speed-duplex setting is:
■
Fast Ethernet ports – 100full for 100BASE-TX ports
■
Gigabit Ethernet ports – 100full for 1000BASE-T ports
C
OMMAND
M
ODE
Interface Configuration (Ethernet, Port Channel)
C
OMMAND
U
SAGE
◆
The 1000BASE-T standard does not support forced mode. Auto-
negotiation should always be used to establish a connection over any
1000BASE-T port or trunk. If not used, the success of the link process
cannot be guaranteed when connecting to other types of switches.
◆
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.
E
XAMPLE
The following example configures port 5 to 100 Mbps, half-duplex
operation.
Console(config)#interface ethernet 1/5
Console(config-if)#speed-duplex 100half
Console(config-if)#no negotiation
Console(config-if)#
R
ELATED
C
OMMANDS
negotiation (704)
capabilities (701)