Reference Guide

LED patterns indicating problems Diagnostic Tips
Power Collision AUI/Xcvr
Port
Twisted-Pair
Port
ON Appears
solidly ON
**
Very frequent collisions are occurring,
which could indicate a network fault or
improperly terminated cable.
A transceiver attached to the AUI port may
not have the SQE test disabled. For
information about the SQE test, see your
documentation accompanying your
transceiver module.
If you have an HP AdvanceStack 8U/16U
SNMP Module installed, see its manual.
ON * * Slow
Flash
The port has been auto-partitioned
because of an excessive collision
condition. Check cable connections and
status of attached network devices for
causes of the excess collisions.
ON * Slow
Flash
*
The transceiver port has been
auto-partitioned because of too many
collisions. Check cable terminations,
connections, SQE setting on any external
transceivers, and status of attached
network devices for causes of the excess
collisions.
ON * * After self-
test, all
ports are
ON for an
extended
period of
time.
The hub has failed its self-test.
Power-cycle the hub. If this condition
persists, call your HP-authorized LAN
dealer or HP representative for assistance.
* This LED is not important for the diagnosis.
Troubleshooting
Troubleshooting
2-5