Diagnosing With The Leds - HP ProCurve 408 Installation Manual

Troubleshooting

Diagnosing With the LEDs

Diagnosing With the LEDs
Table 3-1 shows LED patterns on the switch that indicate problem
conditions.
1. Check in the table for the LED pattern that you see on your
switch.
2. Refer to the corresponding diagnostic tip on the next few pages.
Table 3-1. LED Error Indicators
LED Pattern Indicating Problems
Power
Off with power
cord plugged in
On
On
* This LED is not important for the diagnosis.
3-4
Fault Port Link
*
Prolonged
On
Off Off with cable
connected
Diagnostic Tips
*
*