Troubleshooting With The Activity Leds; Technical Assistance - 3Com CoreBuilder 5000 User Manual

Troubleshooting
With the Activity
LEDs
Technical
Assistance
Under some conditions a port's Activity LED may not light. Use the
troubleshooting suggestions in
has occurred and to isolate the source of the problem.
Table 4-3

Troubleshooting With the Activity LEDs

LED
State Possible Problem
Off There is no traffic received
from the segments (normal).
The Activity LED has burned
out.
A 24-Port module port is
faulty.
The module connection to the
backplane is bad.
You can receive assistance for installing and troubleshooting the 24-Port
module by calling your 3Com rep or 3Com Technical Support. Be
prepared to supply the following information:
a description of the problem
the steps you have taken to try to correct the problem
status of the front panel LEDs
the version of network management in use
hardware and software version of the 24-Port module
the configuration of your network
the configuration of your hub (you may find it helpful to refer to the
Slot Usage Chart that is shipped with the CoreBuilder 5000
Integrated System Hub Installation and Operation Guide for a record
of this information.)
Refer to Appendix B
for your product.
Table 4-3
Troubleshooting Solutions
None.
Press the LED test button on the
controller module.
Connect the cable to a different port.
Reinsert the 24-Port module. If this fails
to correct the problem, try another hub
slot.
for instructions on contacting Technical Support

Technical Assistance

to help determine why this
4-3