Chapter 9: Troubleshooting
110
Problem 6: The switch functions intermittently.
Solutions: Check the system hardware status through the management
software:
Use the SHOW SYSTEM ENVIRONMENT command in the
Privileged Exec mode to verify that the input voltage from the
power source to the switch is stable and within the approved
operating range. The unit will shut down if the input voltage
fluctuates above or below the approved operating range.
Use the SHOW SYSTEM ENVIRONMENT command in the
Privileged Exec mode to verify that the fan is operating correctly.
Verify that the location of the switch allows for adequate airflow.
The unit will shut down if it is overheating.
Problem 7: The Switch ID LED on the front of the switch is flashing the
letter "F."
Solutions: One or more of the following problems has occurred:
A cooling fan has failed.
The switch might be overheating and may have to shut down.
Contact your Allied Telesis sales representative for assistance.