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Speed-duplex, Speed-duplex 1004, Speed-duplex (1004) – LevelOne GTL-2691 User Manual

Page 1004

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C

HAPTER

31

| Interface Commands

Interface Configuration

– 1004 –

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 {1000full | 100full | 100half | 10full | 10half}
no speed-duplex

1000full - Forces 1 Gbps full-duplex operation
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 on the Gigabit ports, and

disabled on the 10 Gigabit ports.

When auto-negotiation is disabled, the default speed-duplex setting is

100full on the 1000Base-T ports, 1000full on the 1000Base SFP ports,

and 10Gfull on the 10G ports.

The speed-duplex setting on the 10G ports is fixed at 10Gfull.

C

OMMAND

M

ODE

Interface Configuration (Ethernet, Port Channel)

C

OMMAND

U

SAGE

The 1000BASE-T and 10GBASE-T standard does not support forced

mode. Auto-negotiation should always be used to establish a

connection over any 1000BASE-T and 10GBASE-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)#