Alcatel-Lucent 1643 AMS User's Operation Manual page 234

Alarm management
Important! If you set the alarm reporting status to Not Reported, no attention will
be raised to maintenance personal regardless of the alarm severity level.
Provisioning severity/reporting state
It is possible to view and to provision a severity and reporting state for each alarm, or
for a specific instance on the CIT. An instance is the smallest part on a network
element that can generate an alarm. This means that it is possible to modify the
severity level of an alarm for a VC12 incoming at a specific port, from a given
customer. A similar concept exits on the ITM-SC. For this management system, please
refer to Existing Ressources feature.
Alarm control
When a defect is detected within an NE or management system, the user will be
notified of this defect via an alarm after the Raise Hold Off period. This period is used
to make sure the defect really exist within the NE or management system. When the
defect is solved the alarm will be cleared after the Clear Hold Off period. This period
is used to make sure the problem is solved and prevents the alarm reporting to blink
on and off repetitively. This will address the when question. Please note that it is not
possible to set the Raise Hold Off period on the ITM CIT.
Alarm latching
When latching is enabled the alarm/autonomous event must be acknowledged before
the alarm moves to the history list upon clearance. When alarm latching is not enabled
acknowledgment is still possible. But these alarms/autonomous events will go directly
to the history list upon clearance whether acknowledged or not. This feature is only
available on the ITM-SC.
Clearance acknowledgment
When Clearance Acknowledgement is licensed an alarm or autonomous event, which is
initially latched, can only go to the history list after its clearance has been
acknowledged. The alarms which have been acknowledged in the raised state remain
after clearance in the current alarm list; they only go to the history list when their
clearance has been explicitly acknowledged by the user. This feature is only available
on the ITM-SC.
Alarms latched on default
All alarms (instantaneous events) are latched on default. This is to make sure the alarm
will be notified by the user. So they are moved to the History List only after they have
been acknowledged. This feature is only available on the ITM-SC.
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6-10 Alcatel-Lucent - Proprietary
See notice on first page
Event properties
365-312-807R7.2
Issue 4, May 2007