Seeing UNRESOLVED FAULT DETECTED alarms seen when using fanout model which was not happening on previous versions- Why is this happening and how can I correct this

Document ID : KB000113332
Last Modified Date : 30/10/2018
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Introduction:
This is a tech doc explaining the changes made to the fanout model and the creation of UNRESOLVED FAULT DETECTED
 
Question:
Seeing UNRESOLVED FAULT DETECTED alarms seen when using fanout model which was not happening on previous versions- Why is this happening and how can I correct this
 
Answer:
In 9.4.3 changes where added for fanout that each connection to it will be treated as a separate fault record, so in case if all the devices connected to fanout goes down for each fault record fault isolation will generate multiple unresolved alarms on FI model except for the fault record having an alarm already existing.
There was an issue with fanout as it can find root cause on any of the device in fault record which might not be appropriate if fault records are not separate. It led to above changes in Fanout.
On 10.2.3 patch Spectrum_10.02.03.D424 has been produced to resolve the issue of seeing UNRESOLVED FAULT DETECTED alarms seen when using fanout model.
If you need patch Spectrum_10.02.03.D424 contact support.