4-3
Troubleshooting
Diagnosing with the LEDs
➋
A switch
hardware failure
has occurred. All
the LEDs will stay
on indefinitely.
Try power cycling the switch. If the fault indication reoccurs, the switch may have failed.
Call your HP authorized network reseller, or use the electronic support services from HP
to get assistance.
➌
The switch has
experienced a
hardware failure.
Try resetting the switch by pressing the Reset button on the front of the switch, or by
power cycling the switch.
If necessary to resolve the problem, contact your HP authorized network reseller, or use
the electronic support services from HP to get assistance.
➍
The switch
cooling fan may
have failed.
Try disconnecting power from the switch and wait a few moments. Then reconnect the
power to the switch and check the LEDs again. If the error indication reoccurs, the switch
cooling fan has failed. The switch may continue to operate under this condition if the
ambient temperature does not exceed normal room temperature, but for best operation,
the switch should be replaced. Contact your HP authorized network reseller, or use the
electronic support services from HP to get assistance.
➎
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 HP authorized
network reseller, or use the electronic support services from HP to get assistance.
If the port is a mini-GBIC, verify that it is one of the mini-GBICs supported by the switch.
Unsupported mini-GBICs will be identified with this fault condition. The supported mini-
GBICs are listed in Chapter 2, “Installing the Switch” on page 2-12. The mini-GBICs are
also tested when they are “hot-swapped”— installed or changed while the switch is
powered on.
To verify that the port has failed, try removing and reinstalling the mini-GBIC without
having to power off the switch. If the port fault indication reoccurs, you will have to
replace the mini-GBIC.
➏
The network
connection is not
working
properly.
Try the following procedures:
• For the indicated port, verify that both ends of the cabling, at the switch and the
connected device, are secure.
• Verify the connected device and switch are both powered
on
and operating correctly.
• Verify that the connected devices comply with the appropriate IEEE 802.3 standard,
including transmission of the Link signal.
• If the other procedures do not resolve the problem, try using a different port or a
different cable.
Tip Problem Solution