Troubleshooting

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.Check in the table for the LED pattern you see on your switch.

2.Refer to the corresponding diagnostic tip on the next few pages.

 

Table 5-1.

LED Error Indicators

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED Pattern Indicating Problems

 

 

 

 

 

 

 

 

 

 

 

Power

Fault

PS

Tmp

Test

Fan

Port LED

Diag

Status

(in Link view mode)

Tips

Off with

*

PS LED off

*

*

*

*

➊

power cord

 

or blinking

 

 

 

 

 

plugged in

 

orange

 

 

 

 

 

 

 

 

 

 

 

 

 

On

Prolonged On

*

*

Prolonged

*

*

➋

 

 

 

 

On

 

 

 

 

 

 

 

 

 

 

 

On

Blinking†

*

*

Blinking†

*

*

➌

 

 

 

 

 

 

 

 

On

Blinking†

*

*

Off

Blinking†

*

➍

 

 

 

 

 

 

 

 

On

Blinking†

*

*

Blinking†

*

Blinking†

➎

 

 

 

 

 

 

 

 

On

Off

*

*

Off

*

Off with cable

➏

 

 

 

 

 

 

connected

 

 

 

 

 

 

 

 

 

On

Off

*

*

Off

*

On, but the port is

➐

 

 

 

 

 

 

not

 

 

 

 

 

 

 

communicating

 

 

 

 

 

 

 

 

 

On

Blinking

Blinking

*

Off

*

*

➑

 

 

 

 

 

 

 

 

On

Blinking

*

Blinking

Off

*

*

➒

 

 

 

 

 

 

 

 

* This LED is not important for the diagnosis.

† The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.

5-4