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Troubleshooting

Diagnosing with the LEDs

Tip

Number

Problem

Solution

The network port

➐

for which the Link
LED is flashing has
experienced a self
test or initialization
failure.

During the module self test, described in tip number 4 earlier in this table, each
network port is also tested. If the port self test fails, the individual port is not usable,
but the rest of the ports on the module, which have passed their self test, will
continue to operate normally.

If the port is a mini-GBIC, verify it is one of the mini-GBICs supported by the
mini-GBIC gl Module. Unsupported mini-GBICs will be identified with this fault
condition. The supported mini-GBICs are listed in the module

Installation Guide

. The

mini-GBICs are also tested when they are “hot-swapped”--installed or changed
while the mini-GBIC xl Module is installed and receiving power from the switch.

To verify the port has failed, try removing and reinstalling the module, as described
in tip number 4. For the mini-GBICs, you can just remove and reinstall the mini-GBIC
without having to remove the module. If the port fault indication reoccurs, and you
need to be able to use the port, you will have to replace the module or the mini-GBIC.
In the mean time, all the other module ports will operate normally.

A fault condition

Try removing and reinstalling the power supply.

➑

has been detected

Caution:

Ensure the AC power cord is disconnected from the supply before removing

on the power

and reinstalling the supply.

supply installed in

Reconnect the power supply to the AC power source. If the error indication reoccurs

the slot
corresponding to

after the supply is reinstalled, the power supply may be faulty. Call your HP-

the flashing

authorized LAN dealer, or use the electronic support services from HP to get

number.

assistance. See the Customer Support/Warranty card for more information.

One or more of the

Try disconnecting power from the switch and wait a few moments. Then reconnect

➒

switch cooling fans

the power to the switch and check the LEDs again. If the error indication reoccurs,

may have failed.

one or more of the fans has failed. The switch has multiple fans and may continue
to operate OK 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 LAN dealer, or use the electronic support services from
HP to get assistance. See the Customer Support/Warranty card for more
information.

The network port

➓

for which the Link
LED is flashing has
been disabled
because port
security has been
configured on the
switch and a
security violation
has been detected
on the port.

For the Port Security feature, you can configure the switch so that whenever a
security violation is detected on a port, the switch will disable the port. When a port
is disabled by this feature, the port Link LED will be continuously flashed at the fast
rate of 0.8 seconds per cycle. The flashing continues until you clear the security
violation through the switch console. In the console, you can view the identity of the
connected device that committed the security violation.

Once the security violation is cleared, you must re-enable the port through the
console.

For more information on the Port Security feature, see the

Management and

Configuration Guide

that is on the documentation CD-ROM that came with your

switch.

Tro
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shoo
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