HP ProCurve 1600M, Installation Manual

Page: 44 / 80

3-4
Troubleshooting
Diagnosing with the LEDs
T
rou
bl
esh
oot
in
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Diagnosing with the LEDs
Tables 3-1 shows LED patterns on the switch and the switch modules 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
Diagnostic
Tips
Power Fault Self Test
Module
Status
Fan Status
(Switch
1600M only)
Link
(per port)
Off with
power
cord
plugged
in
* * * * *
➊
On Prolonged
On
Prolonged
On
* * *
➋
On Blinking
†
Blinking
†
* * *
➌
On Blinking
†
Blinking
†
Blinking
†
* All Link and Mode
LEDs On
➍
On Off Off Blinking
†
* *
➎
On Blinking
†
Off * Blinking
†
*
➏
On Off Off On * Off with cable
connected
➐
On Off Off On * On, but the port is
not
communicating
➑
* This LED is not important for the diagnosis.
†
The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.