Reference Guide

S-Series Debugging and Diagnostics | 1575
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S-Series Debugging and Diagnostics
This chapter contains three 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, FTOS 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 console.
In other words, you cannot run diagnostics on a unit to which you are connected via a stacking
link.
• Diagnostic results are printed to the screen. FTOS does not write them to memory.
• Diagnostics only test connectivity, not the entire data path.
The offline diagnostics commands are:
• diag stack-unit
• offline stack-unit
• online stack-unit
diag stack-unit
s
Run offline diagnostics on a stack unit.
Syntax
diag stack-unit number [alllevels | level0 | level1 | level2] verbose testname
Parameters
number
Enter the stack-unit number.
Range: 0 to 7
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.