User's Manual

T ROUBLESHOOTING
A-2
Link LED is Off Network cable or
Ethernet device
attached to this port
may be defective.
• 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.
Major LED is Red Major alarm
detected.
• One or more major system
alarm(s) affecting traffic have
occurred. Check the alarm
filter mask to determine
potential cause(s) of alarm.
Minor LED is
Amber
Minor alarm
detected.
• One or more minor system
alarm(s) affecting traffic have
occurred. Check the alarm
filter mask to determine
potential cause(s) of alarm.
Fan Fail LED is Red Fan failure • One or more fans in the fan
tray have failed. Replace the
fan tray.
Table A-1 Diagnosing Switch Indicators (Continued)
Symptom Possible Cause Action