D-Link DGS-1510/ME Series Reference Manual page 128

DGS-1510/ME Series Metro Ethernet Switch CLI Reference Guide
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Where the link partner is powered on with no errors and the link is up, this command can detect the
cable length
•
Where the link partner is powered on with errors, this command can detect whether the error is open,
short, or crosstalk. In this case this command can also detect the distance of the error
•
Where the link partner is powered down with no errors and the link is down, this command cannot
detect the cable length
•
When the link partner is powered down with errors, this command can detect whether the error is open,
short, or crosstalk. In this case this command can also detect the distance of the error
•
When there is no link partner with no errors and the link is up, this command can detect the cable
length
•
When there is no link partner with errors, this command can detect whether the error is open, short, or
crosstalk. In this case this command can also detect the distance of the error
NOTE: This test is only for copper cable. The fiber port is not tested. For the combo ports, only the
copper media will be tested. The cable diagnosis does not support on the Pair 1 and 4 if the link partner
is FE port. If the link partner is FE port, the target port's link will be down after the test.
Format
cable_diag ports [<portlist> | all]
Parameters
<portlist> - Enter a list of ports used for the configuration here.
all - Specifies that all the ports will be used for this configuration.
Restrictions
Only Administrators, Operators and Power-Users can issue this command.
Example
Test the cable on port 1, 11, and 12:
DGS-1510-28XMP/ME:admin# cable_diag ports 1,11-12
Command: cable_diag ports 1,11-12
Perform Cable Diagnostics ...
Port Type
------ ----------
1 100BASE-T
11 100BASE-T
12 100BASE-T
DGS-1510-28XMP/ME:admin#
Link Status Test Result
------------- -------------------------
Link Up OK
Link Down No Cable
Link Down No Cable
-----------------
124
Cable Length (M)
4
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