JPH05313952A - Alarm mask system for network control system - Google Patents

Abstract

PURPOSE:To deal with only an alarm that really requires the emergency countermeasure by masking the forecastable alarms and reporting a sudden fault with preference. CONSTITUTION:An alarm information register function 3 previously registers the equipment identification information and the forecast alarm generating time into the register information 5 through an input/output terminal 6 against the equipment to which the generation of a alarm is forecast in a network control system. Then, the function 3 offers the information necessary for the alarm mask processing. An alarm influence evolving function 2 periodically refers to the information 5 registered previously and extracts and evolves only the relevant alarm that carries out the alarm mask processing. In this case, not only the information registered by the function 3 but the information on the equipment to be affected are extracted and evolved at one time. These alarm subject equipments and the equipments to be affected are stored in an alarm mask table 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm mask method in a network management system, and more particularly, when it is possible to predict that an alarm will be generated from a monitored facility in the maintenance operation of a transmission network constructed for a telecommunications carrier ( Alarm output when operation is stopped due to regular maintenance work, etc.), and alarms by recognizing various information (information that can uniquely identify monitored equipment and the scheduled date and time of occurrence) related to the equipment on the network management system side The present invention relates to an alarm mask method in a network management system that performs mask processing to identify whether a cause of an alarm occurrence is a predicted one or a sudden one.

[0002]

2. Description of the Related Art Conventionally, all alarms that have occurred are notified to a person who operates the network (referred to as a maintenance person) by the same notification method, and the cause of the alarm is determined and handled by the maintenance person. .

[0003]

The alarms in the above-mentioned conventional network management system include both predictable alarms and sudden alarms, and the network management system uniformly notifies the maintenance personnel. Therefore, it has a drawback that it is difficult to identify the priority in maintenance.

Further, since all the alarm masks depend on the maintenance personnel's know-how regarding the network, there is also a drawback that the maintenance personnel are all burdened with prompt measures when a failure occurs.

[0005]

According to the alarm mask method in the network management system of the present invention, when an alarm that is output when an abnormality occurs in the equipment to be monitored is predictable, the alarm is masked by the network management system. , The alarm generated from the equipment affected by the abnormality is also masked, and only the original sudden failure alarm is notified.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an alarm mask system in the network management system of the present invention.
The alarm mask in the network management system of this embodiment is
Referring to FIG. 1, the alarm information registration function 3 is
With the function of registering the equipment identification information and the scheduled alarm occurrence time in the registration information 5 from the input / output terminal 6 for the equipment for which an alarm is expected to occur in the network management system, and providing the information as the basis of the alarm mask processing. is there. The alarm influence expansion function 2 is a function for periodically referring to the registration information 5 registered in advance and extracting and expanding only the corresponding alarm for which the alarm mask processing is executed. At this time, not only the information (equipment unit) registered by the alarm information registration function 3 but also the information on the affected equipment is extracted and developed at the same time. An alarm mask table 4 is a list (table) of information about the corresponding equipment subject to the alarm mask processing and the equipment affected.

The alarm mask judging function 1 judges whether or not the mask processing can be carried out by referring to the alarm mask table 4 on the alarm information received by the network management system. The alarm mask table 4 is created at the alarm occurrence start time and deleted at the alarm occurrence end time in order to validate the scheduled alarm occurrence time registered in the registration information 5 by the alarm information registration function 3. . FIG. 2 shows the relationship between predictable equipment in which an alarm is predicted and equipment affected by the same. 10 for MUX-1 11
One transmission line of 0 Mbps is accommodated and it is 32 Mbps.
Divide into 3 pieces. Here, assuming that the equipment accommodating one 32 Mbps transmission line is MUX-2 21, 22, 23, the MUX-1 11 has three MUX-2 21,
22 and 23 will be connected. Similarly one MU
For X-2 21, 22, or 23, since the transmission line of 32 Mbps is divided into 5 6.3 Mbps, 6.3 M
Five MUX-3 31,3 accommodating a bps transmission line
2, 33, 34 and 35 will be connected. At this time, the equipment that is expected to generate an alarm is MUX-2 21
If it is, an alarm is generated from the MUX-2 21 and the five Ms connected to the MUX-2 21 are connected.
An alarm occurs when affected by UX-3 31, 32, 33, 34, 35. Here, the equipment that requires alarm mask processing is MUX-2 21 and five MUX-3 31, 32, 33, 3 in the connection relationship.
There are 4,35 facilities, but the one that can be predicted is MUX-2.
21 only, so MUX-3 31, 32, 3
For the alarm mask processing of 3, 34, and 35, it is necessary to manage the hierarchy configuration of the transmission system network. Therefore, the regularity of the hierarchy configuration can be set as shown in FIG. Therefore, by preparing the alarm mask table 4 shown in FIG. 3, the alarm mask process for the influence development in the network management system can be executed. Since it is predicted from FIG. 3 that an alarm will be generated from the equipment 21 of the MUX-2, the mask execution state is set by setting the flag to 1 for the equipment 21. In addition, the five MUX-3 31 under the MUX-2 21,
32, 33, 34, 35 are also affected, so flag 1
Are set, but these are automatically added as a result of the impact deployment on the network management system side.

[0009]

As described above, the alarm mask in the network management system of the present invention masks these predictable alarms by paying attention to the fact that the maintenance person does not need to take immediate action. By giving priority to the notification of a sudden failure, it becomes possible for a maintenance person to deal only with an alarm that truly requires an emergency when a repair / restoration operation is performed. Further, since the alarm mask processing can eliminate the alarms whose urgency is not required, the processing capability of the network management system can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an alarm mask method in a network management system of the present invention.

FIG. 2 is a diagram showing a relationship between a predictable facility in which an alarm is expected to occur and a facility affected by the alarm in the network management system of the present embodiment.

FIG. 3 is a diagram showing an alarm mask table used in the network management system of the present embodiment.

[Explanation of symbols]

 1 Alarm mask judgment function 2 Alarm influence expansion function 3 Alarm information registration function 4 Alarm mask table 5 Registration information 6 Input / output terminal

Claims (1)

[Claims] 1. When an alarm that is output when an abnormality occurs in a monitored facility can be predicted, the alarm is masked by a network management system, and mainly an alarm generated by the facility affected by the abnormality is also masked. And the alarm mask method of the network management system, which is characterized by notifying only the original unexpected failure alarm.