TROUBLESHOOTING
Table A-1 Troubleshooting Chart (Continued)
Symptom | Action |
|
|
Stack Link LED is | • The uplink/downlink has failed. |
Flashing Green/Amber | • For the indicated stack link, check that the stacking |
| |
| cables are properly connected. Replace the stacking |
| cable if necessary. |
| • Power cycle the switch to try and clear the condition. |
|
|
Link LED is Off | • Verify that the switch and attached device are powered |
| on. |
| • Be sure the cable is plugged into both the switch and |
| corresponding device. |
| • Verify that the proper cable type is used and its length |
| does not exceed specified limits. |
| • Check the adapter on the attached device and cable |
| connections for possible defects. Replace the defective |
| adapter or cable if necessary. |
|
|
Diagnosing Power Problems with the LEDs
The Power and RPS LEDs work in combination to indicate power status as follows.
|
| Table |
Power LED | RPS LED | Status |
|
|
|
Green | Green | Internal power functioning normally; RPS is present. |
|
|
|
Green | Amber | Internal power functioning normally; RPS plugged in but |
|
| faulty. |
|
|
|
Green | Off | Internal power functioning normally; RPS not plugged in. |
|
|
|
Amber | Green | Internal power faulty; RPS delivering power. |
|
|
|
Off | Off | Both internal power and RPS unplugged or not functioning. |
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|
|