Command Line Reference Guide

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Debugging and Diagnostics
This chapter contains the following sections:
• Offline Diagnostic Commands
• Hardware Commands
Offline Diagnostic Commands
The offline diagnostics test suite is useful for isolating faults and debugging hardware. While tests are
running, the Dell Networking OS results are saved as a text file (TestReport-SU-X.txt) in the flash
directory. The show file command is available only on Master and Standby.
Important Points to Remember
• Offline diagnostics can only be run when the unit is offline.
• Offline diagnostics cannot be run in Stacking mode.
• You can only run offline diagnostics on a unit to which you are connected via the console. In other
words, you cannot run diagnostics on a unit to which you are connected via a stacking link.
• Diagnostic results are stored in a file (TestReport-SU-X.txt) in the flash directory. To review the results,
use the show file command, which prints the results to the screen.
• Diagnostics only test connectivity, not the entire data path.
The offline diagnostics commands are:
• diag stack-unit
• offline stack-unit
• show diag
Hardware Commands
These commands display information from a hardware sub-component or ASIC.
The hardware commands are:
• clear hardware stack-unit
• show diag
• show hardware stack-unit
• show hardware system-flow
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Debugging and Diagnostics