An osSoamPmThrCrossingAlarm notification is sent if the following conditions are met for a particular type. For an aboveAlarm five conditions need to be met: a) measurement of the parameter is enabled via osSoamLmCfgMeasurementEnable for a LM crossing or osSoamDmCfgMeasurementEnable for a DM crossing; and b) the parameter threshold is configured in the osSoamPmLmThrPrflTable or osSoamDmThrCfgTable; and c) the threshold crossing type of bPmThrAboveAlarm is enabled; and d) the measured value of the parameter exceeds the value configured in the osSoamPmLmThrPrflTable for a LM crossing entry or osSoamDmThrCfgTable for a DM crossing entry for a type of bPmThrAboveAlarm; and e) no previous osSoamPmThrCrossingAlarm notifications with type aboveAlarm have been sent relating to the same threshold in the osSoamPmLmThrPrflTable or osSoamDmThrCfgTable and the same parameter, during this measurement interval. For a setAlarm five conditions need to be met: a) measurement of the parameter is enabled via osSoamLmCfgMeasurementEnable for a LM crossing or osSoamDmCfgMeasurementEnable for a DM crossing; and b) the parameter threshold is configured in the osSoamPmLmThrPrflTable or osSoamDmThrCfgTable; and c) the threshold crossing type of bPmThrSetClearAlarm is enabled; and d) the measured value of the parameter exceeds the value configured in the osSoamPmLmThrPrflTable for a LM crossing entry or osSoamDmThrCfgTable for a DM crossing entry for a type of bPmThrSetClearAlarm for the measurement interval; and e) the previous measured value did not exceed the value configured in the osSoamPmLmThrPrflTable for a LM crossing entry or osSoamDmThrCfgTable for a DM crossing entry for a type of bPmThrSetClearAlarm. For a clearAlarm five conditions need to be met: a) measurement of the parameter is enabled via osSoamLmCfgMeasurementEnable for a LM crossing or osSoamDmCfgMeasurementEnable for a DM crossing; and b) the parameter threshold is configured in the osSoamPmLmThrPrflTable or osSoamDmThrCfgTable; and c) the threshold crossing type of bPmThrSetClearAlarm is enabled; and d) the measured value of the parameter did not exceed the value configured in the osSoamPmLmThrPrflTable for a LM crossing entry or osSoamDmThrCfgTable for a DM crossing entry for a type of bPmThrSetClearAlarm for the measurement interval; and e) the previous measured value did exceed the value configured in the osSoamPmLmThrPrflTable for a LM crossing entry or osSoamDmThrCfgTable for a DM crossing entry for a type of bPmThrSetClearAlarm. In the case of thresholds applied to a maximum or average measurement counter, the previous measured value is the value of the counter at the end of the preceding measurement interval. In the case of thresholds applied to the last measured value, it is the previous measured value. The management entity that receives the notification can identify the system from the network source address of the notification, and can identify the LM or DM session reporting the threshold crossing by the indices in the osSoamPmNotifObjThrId object, including osEthServId, osEthServFlowId, and the osSoamLmCfgIndex or osSoamDmCfgIndex. An agent is not to generate more than one osSoamLmThrCrossingAlarm 'notification-event' of a given type per LM or DM session as specified by osSoamPmNotifCfgAlarmInt. A 'notification-event' is the transmission of a single notification to a list of notification destinations. If additional threshold crossing events occur within the osSoamPmNotifCfgAlarmInt period, then notification generation for these changes are suppressed by the agent until the current alarm interval expires. At the end of an alarm interval period, one notification-event is generated if any threshold crossing events occurred since the start of the alarm interval period. In such a case, another alarm interval period is started right away.