Administrator 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 system-flow
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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