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Test loop internal, Show cable- diagnostics dsp, Show cable-diagnostics dsp – LevelOne GTL-2691 User Manual

Page 1015: Show cable-diagnostics

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C

HAPTER

31

| Interface Commands

Cable Diagnostics

– 1015 –

Cable Short with accuracy 0 meters.

Pair A OK, length 1 meters

Pair B OK, length 2 meters

Pair C Short, length 1 meters

Pair D Short, length 2 meters

Last Update 0n 2010-04-23 07:59:26

Console#

test loop internal

This command performs an internal loop back test on the specified port.

S

YNTAX

test loop internal interface interface

interface

ethernet unit/port

unit - Stack unit. (Range: 1-8)
port - Port number. (Range: 1-26)

C

OMMAND

M

ODE

Privileged Exec

C

OMMAND

U

SAGE

When performing an internal loopback test, packets from the specified

interface are looped back into its internal PHY. Outgoing data is looped

back to the receiver without actually being transmitted. Internal loopback

makes it possible to check that an interface is working properly without

having to make any network connections.

E

XAMPLE

Console#test loop internal interface ethernet 1/1

Internal loopback test: succeeded

Console#

show cable-

diagnostics dsp

This command shows the results of a cable diagnostics test.

S

YNTAX

show cable-diagnostics dsp interface [interface]

interface

ethernet unit/port

unit - Stack unit. (Range: 1-8)
port - Port number. (Range: 1-26)

C

OMMAND

M

ODE

Privileged Exec