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98 Advanced System Diagnostics and Troubleshooting Guide

Additional Diagnostics Tools

The disable diagnostics cable command also purges the cable diagnostics values for the selected

ports from the CDM data structures.

Viewing and Interpreting CDM Test Data

To display CDM test information currently stored in the CDM data structures, use this command:

show diagnostics cable {ports {<portlist> | all}} {mode {auto | manual | both}}

{detail}

The show diagnostics cable command displays or prints the following cable diagnostics data for

each specified port:

• Time and date of test

• Port identity

• Speed (Mbps)

• Cable length (meters)

• Cable pair (subcategory information for each of the four pairs)

• Fault location (if any, as a distance, in meters)

• Pair skew (ns)

• Pair polarity

• Cable status

• Pair swap

• Diagnostic mode

NOTE

You can specify that cable diagnostics data should be displayed for either the latest automatic

diagnostics run, the latest manual diagnostics run, or both.

The following command displays cable diagnostics information in detail format for ports 1 through 3 on

slot 6:

show diagnostics cable ports 6:1-6:3 detail

1 2 ... 93 94 95 96 97 98 99 100 101 102 103 ... 121 122

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Extreme Networks ExtremeWare Version 7.8 Guida alla Risoluzione dei Problemi Pagina 98