This operation allows an NMS to request all of the active alarms and TCAs that are under the control of this EMS (both those raised by the NEs and those raised by the EMS itself).
Note: A raised alarm is called active as long as no clear notification was received.
Alarms which ASAP assigned severity is "NOT_ALARMED" should not be reported by this operation.

Operation Exceptions:
INTERNAL_ERROR - Raised in case of non-specific EMS internal failure.
