Troubleshooting - Avaya M15-155 Installation Manual

Chapter 3

Troubleshooting

Use the table below to troubleshoot common problems. If you still experience
problems, please contact Avaya Communication Technical Support.
Problem
BIT LED remains ON
after power up or reset
All LEDs remain ON
after power up or reset
Port LED blinks while
function LED is on
LNK
OPR LED does not
light ON after reboot
(after more than 30
seconds)
M15-155 Installation Guide
Probable Cause
Module self-test failed
Module fault
Link failure
The module may be in
Monitor mode because
of a Long Reset
Solution
i) Check that the module is
correctly and fully inserted into
the M770 ATM switch chassis
ii) Reboot or power-up again
Reboot or power-up again
Check the fiber connection to the
port
Reset the module again but this
time make a Short Reset (less than 4
seconds)
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