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4–Diagnostics/Troubleshooting
Error Code Blink Patterns
59229-05 A 4-3
Internal Firmware Failure Blink Pattern
An internal firmware failure blink pattern is 2 blinks followed by a two second
pause. The 2-blink error pattern indicates that the firmware has failed. Table 4-1
describes the blink pattern and the actions for this error.
Fatal POST Error Blink Pattern
A fatal POST error blink pattern is 3 blinks followed by a two second pause. The
3-blink error pattern indicates that a POST failure or a system error has occurred.
If a system error occurs, contact your authorized maintenance provider. Table 4-2
describes the blink pattern and the actions for this error.
Table 4-1. Internal Firmware Failure Blink Pattern
Blade LED Action
I/O Blade Error LED Reset the I/O blade.
CPU1 Heartbeat LED Reset the CPU1 blade
CPU0 Heartbeat LED The switch is inoperable. Reset the CPU0 blade.
Table 4-2. System Error Blink Pattern
Blade LED Action
I/O Blade Error LED Reset the I/O blade.
CPU1 Heartbeat LED Reset the CPU1 blade.
CPU0 Heartbeat LED The switch is inoperable. Reset the CPU0 blade.
2 seconds
2 seconds