Troubleshooting |
30
LED Pattern Indicating Problems
Diagnostic
Tips
Power
Port LED
Blinking†
On
Off with cable connected
* This LED is not important for the diagnosis.
† The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.
Diagnostic Tips
Tip
Problem
Solution
➊
The switch is not plugged
into an active AC power
source, the switch’s
power adapter may have
failed.
1. Verify the power cord is plugged into an active power source and to the
switch. Make sure these connections are snug.
2. Try power cycling the switch by unplugging and plugging the power cord
back in.
3. If the Power LED is still not on, verify that the AC power source works by
plugging another device into the outlet. Or try plugging the switch into a
different outlet or try a different power cord.
If the power source and power cord are OK and this condition persists, the
switch power supply may have failed. Call your Aruba authorized network
reseller, or use the electronic support services from Aruba to get assistance.
➋
The network port for
which the Link LED is
blinking has experienced
a self test or initialization
failure.
Try power cycling the switch. If the fault indication reoccurs, the switch port
may have failed. To confirm, try a different port that appears to be good. Call
your Aruba authorized network reseller, or use the electronic support
services from Aruba to get assistance.
To verify that the port has failed, try removing and reinstalling the SFP without
having to power off the switch. If the port fault indication reoccurs, you will
have to replace the SFP.
➌
The network connection
is not working properly.
Try the following procedures:
n
For the indicated port, verify that both ends of the cabling, at the switch
and the connected device, are secure.
n
Verify the connected device and switch are both powered on and
operating correctly.
n
Verify that the connected devices comply with the appropriate IEEE 802.3
standard, including transmission of the Link signal.
n
If the other procedures do not resolve the problem, try using a different
port or a different cable.
LED Patterns for PoE Troubleshooting
The following tables identify the specific problems that are shown by the LEDs.
Procedure
