Command Line Reference Guide

11
Debugging and Diagnostics
Use the debugging and diagnostics commands described in this chapter to troubleshoot switch
operation.
This chapter contains the following sections:
• Offline Diagnostic Commands
• Buffer Tuning Commands
• Hardware Commands
Offline Diagnostic Commands
Use the offline diagnostics test suite to isolate faults and debug switch hardware. While tests are running,
the system results are saved as a text file in the flash directory: TestReport-
N.txt , where N is 0,1, or 2 for
the line-card processor (LP) and 0 for the Control processor (CP) and Route Processor (RP). To display
the system results in this text file, use the
show file command.
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
Run offline diagnostics on all CPUs or on a specified CPU in the switch.
Z9500
Syntax
diag {all | {{cp | rp | linecard} unit-id} [alllevels | level0
| level1 | level2] [interactive] [testname name] [terminate]
Parameters
all Enter the keyword all to run offline diagnostic tests on all
Z9500 CPUs, including the Control Processor, Route
Processor, and line cards.
cp unit-id Enter the cp unit-id parameters to run offline diagnostic
tests only on the Control Processor CPU. The Control
Processor CPU ID is 0.
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Debugging and Diagnostics