14Debugging and DiagnosticsThe basic debugging and diagnostic commands are supported by the Dell Networking Operating System(OS) on the S4810 platform.This chapter contains the following sections:• Offline Diagnostic Commands• Buffer Tuning Commands• Hardware CommandsOffline Diagnostic CommandsThe offline diagnostics test suite is useful for isolating faults and debugging hardware. While tests arerunning, Dell Networking OS 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 otherwords, you cannot run diagnostics on a unit to which you are connected to via a stacking link.• Diagnostic results are printed to the screen. Dell Networking OS does not write them to memory.• Diagnostics only test connectivity, not the entire data path.diag stack-unitRun offline diagnostics on a stack unit.S4810Syntax diag stack-unit number [alllevels | level0 | level1 | level2]verbose testnameParameters number Enter the stack-unit id.Range: S4810 - 0 to 11Enter the stack-unit number. The range is from 0 to 7.alllevels Enter the keyword alllevels to run the complete set ofoffline diagnostic tests.level0 Enter the keyword level0 to run Level 0 diagnostics. Level0 diagnostics check for the presence of various componentsDebugging and Diagnostics 591
