Infrastructure Manager populates the alarm window in two ways:
1) By creating a temporary queue on the hub and listening to in-bound alarms live.
2) By reading the database.db and transactionlog.db files in the NAS directory.
When the alarm is generated in Spectrum the spectrumgtw will send the the alarm to the EMS probe rather than NAS. Infrastructure Manager will not be able to pull spectrumgtw alarm information after it leaves the temporary queue because it is not being stored in the database.db and transactionlog.db files. Once the Infrastructure Manager alarm console is refreshed, the alarm will disappear.