Tap-503: Clear Drop Side Incoming Lof Failures - Lucent Technologies LambdaXtreme Alarm Messages And Trouble Clearing Manual

TAPs for PortOT Alarm Group

TAP-503: Clear Drop Side Incoming LOF Failures

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Overview
Procedure
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365-575-783R1.1
Issue 1, June 2002
This procedure explains how to address one of the following incoming
signal failures:
•
Drop side OC-48/STM-16 LOF failure
•
Drop side OC-192/STM-64 LOF failure
These alarms are raised at the OUT_DROP port of the OT circuit
pack when the OT fails to detect the expected SONET/SDH frame
structure. This is an indication that there is problem with the upstream
OT.
Important! OC-192/STM-64 is associated with the 10G ADD DROP
OT. OC-48/STM-16 is associated with the MUX OT.
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At the CIT NE Alarm List
1
AID of the OT with the failure.
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Determine the OT frequency associated with the identified AID.
2
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Identify the NE of the corresponding upstream OT circuit pack.
3
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Log into the identified NE.
4
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Are any alarms reported in this NE, associated with the identified
5
OT?
IF...
YES
NO
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Clear the alarms. Refer to
6
Lucent Technologies - Proprietary
See notice on first page
, examine the AID column and record the
THEN...
Continue with Step 6
Go to Step 9.
Appendix A, "Alarm/Condition
Trouble Clearing Tasks
List".
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