Users Guide

Debugging and Diagnostics
This chapter contains the following sections:
• Offline Diagnostic Commands
• Hardware Commands
Topics:
• Offline Diagnostic Commands
• Hardware Commands
• clear hardware stack-unit
• diag stack-unit
• hardware watchdog
• offline stack-unit
• show diag
• show hardware stack-unit
• show hardware counters interface
• show hardware buffer interface
• show hardware system-flow
• show hardware buffer-stats-snapshot
• show hardware stack-unit buffer-stats-snapshot (Total Buffer Information)
• show hardware drops
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
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