D-Link DWS-3160-24PC DWS-3160 Series CLI Reference Guide - Page 160
Cable Diagnostics, Command List
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DWS-3160 Series Gigabit Ethernet Unified Switch CLI Reference Guide Chapter 14 Cable Diagnostics Command List cable_diag ports [ | all] 14-1 cable_diag ports Description This command is used to run a cable diagnostics report for all the ports or only for selected ports on this Switch. For Fast Ethernet ports, two pairs of the cable will be diagnosed. For Gigabit Ethernet ports, four pairs of the cable will be diagnosed. The type of cable error can be open, short, or crosstalk. 1. Open means that the cable in the error pair does not have a connection at the specified position. 2. Short means that the cables in the error pair has a short problem at the specified position, 3. Crosstalk means that the cable in the error pair has a crosstalk problem at the specified position. When a port is in link-up status, the test will obtain the distance of the cable. Since the status is link-up, the cable will not have the short or open problem. But the test may still detect the crosstalk problem. When a port is in link-down status, the link-down may be caused by many factors. • When the port has a normal cable connection, but the remote partner is powered off, the cable diagnosis can still diagnose the health of the cable as if the remote partner is powered on. • When the port does not have any cable connection, the result of the test will indicate no cable. • The test will detect the type of error and the position where the error occurs. NOTE: This test will consume a low number of packets. Since this test is for copper cables, the ports with fiber cables will be skipped from the test. For combo port, the test will always be applied to the copper media only. Format cable_diag ports [ | all] Parameters - 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. 156
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