McDATA 4416 Troubleshooting, Input Power LED Is Extinguished, System Fault LED is Illuminated

4

Troubleshooting

Diagnostic information about the switch is available through the switch module LEDs and the external port LEDs. Diagnostic information is also available through the McDATA Embedded Web Server and CLI event logs and error displays.

The switch performs a series of tests as part of its power-up procedure. The

POST diagnostic program performs the following tests:

•Checksum tests on the boot firmware in PROM and the switch firmware in flash memory

•Internal data loopback test on all ports

•Access and integrity test on the ASIC

During the POST, the switch logs any errors encountered. Some POST errors are critical, others are not. The switch uses the System Fault LED and the Logged-In LED to indicate switch and port status. A critical error disables the switch so that it will not operate. A non-critical error allows the switch to operate, but disables the ports that have errors.

Input Power LED Is Extinguished

The Input Power LED illuminates to indicate that the switch logic circuitry is receiving proper voltages. If the Input Power LED is extinguished, contact your authorized maintenance provider.

System Fault LED is Illuminated

The System Fault LED illuminates to indicate that the switch module logic circuitry is overheating or that a POST error has occurred. If the System Fault LED illuminates, contact your authorized maintenance provider.

Troubleshooting

4-1