13
Debugging and Diagnostics
The basic debugging and diagnostic commands are supported by the Dell Networking Operating System
(OS).
This chapter contains the following sections:
• Offline Diagnostic Commands
• Buffer Tuning 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 operating system results are saved as a text file (TestReport-SU-X.txt) in the flash
directory. This 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.
• 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 to via a stacking link.
• Diagnostic results are printed to the screen. The Dell Networking OS does not write them to memory.
• Diagnostics only test connectivity, not the entire data path.
diag stack-unit
Run offline diagnostics on a stack unit.
Syntax
diag stack-unit number [alllevels | level0 | level1 | level2]
verbose no-reboot
Parameters
number Enter the stack-unit number. The range is from 0 to 5.
alllevels Enter the keyword alllevels to run the complete set of
offline diagnostic tests.
level0 Enter the keyword level0 to run Level 0 diagnostics. Level
0 diagnostics check for the presence of various components
and perform essential path verifications. In addition, they
verify the identification registers of the components on the
board.
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Debugging and Diagnostics
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