Concept Guide

Debugging and Diagnostics
This chapter contains the following sections:
• Oine Diagnostic Commands
• Hardware Commands
Topics:
• Oine Diagnostic Commands
• Hardware Commands
• clear hardware stack-unit
• diag stack-unit
• hardware watchdog
• oine stack-unit
• show diag
• show hardware stack-unit
• show hardware counters interface
• show hardware buer interface
• show hardware system-ow
• show hardware buer-stats-snapshot
• show hardware stack-unit buer-stats-snapshot (Total Buer Information)
• show hardware drops
Oine Diagnostic Commands
The oine 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 le (TestReport-SU-X.txt) in the ash directory. The show file command is available only on Master and
Standby.
Important Points to Remember
• Oine diagnostics can only be run when the unit is oine.
• Oine diagnostics cannot be run in Stacking mode.
• You can only run oine 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 le (TestReport-SU-X.txt) in the ash 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 oine diagnostics commands are:
• diag stack-unit
• oine stack-unit
• show diag
32
Debugging and Diagnostics 433