Interface And Hardware Section; Cable Diagnostic Commands - D-Link DGS-3700 Series Reference Manual

DGS-3700 Series Layer 2 Managed Gigabit Ethernet Switch CLI Reference Guide
I
NTERFACE AND
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C D
ABLE IAGNOSTIC
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The Cable Diagnostic commands in the Command Line Interface (CLI) are listed (along with the
appropriate
parameters) in the following table.
C
OMMAND
cable_diag ports
Each command is listed, in detail, in the following sections.
cable diag ports
Purpose This command is used to diagnose the copper cable. If there is an error on the cable, it
Syntax cable_diag ports [<portlist>|all]
Description When a port is in link up status, the diagnostic will obtain the distance of the cable.
If the link is up, the abnormal results won't be shown and the cable length item
If the link is down the reason may be that its partner has powered off or the port is
If the link is down and there is some error in the cable, the abnormal results will be
all − Indicate all ports will be displayed.
Parameters
<portlist> − Specifies a port or range of ports to be displayed.
None.
Restrictions
Example usage:
To do the cable diagnostic on ports 1-7 on the Switch:
H
ARDWARE
C
OMMANDS
P
ARAMETERS
[<portlist>|all]
can determine the type of error and the position where the error occurred.
Since the status is link-up, the cable will not have any problem. Since this
diagnostic is for copper cable, the port with fiber cable will be skipped from the
diagnostic.
indicates the length of the cable.
disabled, the abnormal results won't be shown and the cable length item shows the
length of the cable.
shown, but the cable length item won't be shown.
S
ECTION
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