Diagnosing With The Leds - HP ProCurve Series 8212zl Installation And Getting Started Manual

Troubleshooting

Diagnosing with the LEDs

Diagnosing with the LEDs
Table 5-1 shows LED patterns on the switch and the switch modules that
indicate problem conditions.
1.
2.
Table 5-1.
Off with
power cord
plugged in
On Prolonged
On
On Blinking
On Blinking
On Blinking
On Off
On Blinking
On Blinking
On Blinking
On Off
On Off
1
This LED is not important for the diagnosis.
2
The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
3
The fast blinking behavior is an on/off cycle once every 0.8 seconds, approximately
5-4
Check in the table for the LED pattern you see on your switch
Refer to the corresponding diagnostic tip on the next few pages.
LED Error Indicators
LED Pattern Indicating Problems
1 1 1
1
Prolonged
On
2 2
Blinking Off
2 2
Blinking Blinking
2 2
Blinking Blinking
Off Blinking
2 2
Blinking Blinking
2
1
Off
2
1
Off
Off Off
Off On
1 1
1 1
1 1
2
1 1
2
1 1
2
1 1
2
1 1
†
Blinking *
†
1
Blinking
1 1
1 1
Diagnostic
Tips
➊
1
➋
1
➌
1
➍
Never On
➎
On briefly,
then Off
➏
1
2
➐
Blinking
➑
1
➒
1
3
➓
Fast blinking
Off with cable
connected
l
11