LevelOne GTL-2691 - Manual (Page 1014)

C HAPTER 31 | Interface Commands
Cable Diagnostics
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Vcc : 0.00 V
Bias Current : 43.11 mA
TX Power : 605 uW
RX Power : 3 uW
Console#
Cable Diagnostics
test cable-
diagnostics dsp
This command performs cable diagnostics on the specified port to diagnose
any cable faults (short, open, etc.) and report the cable length.
S YNTAX
test 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
C OMMAND U SAGE
◆ Cable diagnostics are performed using Digital Signal Processing (DSP)
test methods.
◆ This cable test is only accurate for cables 7 - 140 meters long.
◆ The test takes approximately 5 seconds. The switch displays the results
of the test immediately upon completion, including common cable
failures, as well as the status and approximate length of each cable
pair.
◆ Potential conditions which may be listed by the diagnostics include:
■
OK: Correctly terminated pair
■
Open: Open pair, no link partner
■
Short: Shorted pair
■
Not Supported: This message is displayed for any Gigabit Ethernet
ports linked up at a speed lower than 1000 Mbps, or for any 10G
Ethernet ports.
■
Impedance mismatch: Terminating impedance is not in the
reference range.
◆ Ports are linked down while running cable diagnostics.
E XAMPLE
Console#test cable-diagnostics dsp interface ethernet 1/1
Cable Diagnostics on interface Ethernet 1/1: