Front-panel-security diagnostic-reset
From the configure context:
Syntax
front-panel-security diagnostic-reset <CLEAR-BUTTON | SERIAL-CONSOLE>
Description
Enables the diagnostic reset so that the switch
can capture diagnostic data.
To initiate diagnostic reset via the clear button, press the clear button for at least 30 seconds but not more than 40 seconds.
To initiate diagnostic switch reset via the serial console, enter the diagnostic reset sequence on the serial console.
Options