KR20040023830A - Apparatus and method for alarm management in network element - Google Patents

Abstract

PURPOSE: A device and a method for managing alarm of a network element are provided to effectively manage/store the alarm to the inside of the network element by minimizing an influence on a performance of the network element, and to transfer the alarm to a management system by preventing the alarm from missing. CONSTITUTION: An alarm manager(31) detects/manages the alarm generated from the network element. A database(32) stores the alarm by receiving management of the alarm manager. An interface(33) interfaces the alarm by connecting to the alarm manager. A management system manager(36) registers/manages the management system to receive the alarm by connecting to the interface.

Description

Apparatus and method for alarm management in network element

The present invention relates to an alarm management apparatus and method for a network element (NE), and in particular, to effectively manage and store alarms within the network element while minimizing the effect on the performance of the network element, and to prevent the loss of alarms. An apparatus and method for alarm management of a network element that is suitable for prevention and delivery to a management system.

In general, a network element is a collection of various facilities or facilities constituting a communication network, and this includes an intelligent transmission device and an exchange facility.

In addition, the Telecommunications Management Network (TMN) was sponsored by the International Telecommunication Union (ITU) in 1988 as a strategic goal to create or verify standard interfaces to ensure that networks are managed consistently across all network component providers. Officially started. This concept fostered and tracked a series of related efforts to develop standard methods for defining and referencing network components. TMN uses the Open System Interconnection (OSI) management standard as its infrastructure. TMN applies to wireless and cable TV as well as private and public networks.

In this TMN, alarm is one of the most important management items to manage network elements. Inside the network element, there are usually 128 alarms as a history, and modules are created and used as necessary to deliver to multiple management systems.

1 is a block diagram of an alarm management apparatus of a network element through a conventional serial interface.

Here, reference numeral 10 denotes a management system for managing a network, and 20 denotes a network element NE connected to the management system 10 and constituting a network.

Each device uses a serial interface with the user to communicate directly with the alarm. In addition, the state of the network element 20 transmitted through the serial interface is displayed on the screen of the management system 10 of FIG. 1.

In addition, there is a need to deliver alarms to multiple management systems 10 while using an interface through a local area network (LAN).

2 is a block diagram of an alarm management apparatus of a network element through a conventional LAN.

Here, reference numeral 10 denotes a plurality of management systems, 20 denotes a plurality of network elements, 21 denotes an alarm distribution unit which exists in the network element 20 to distribute an alarm to one of the management systems 10, and 22 denotes the The system operates a network element 20 and is connected to the alarm distribution unit 21 via a queue.

Therefore, in order to solve the necessity of delivering alarms to multiple management systems 10 while using an interface through a local area network (LAN), it is necessary to write and use modules suitable for the system to manage and deliver alarms. It became.

3 is a flowchart illustrating an alarm management method of a network element through a conventional LAN.

As shown in the figure, when an alarm occurs in the network element 20, storing in a queue (ST1) (ST2); In step ST3, the data stored in the queue is transmitted to the registered management system 10.

In other words, the device over the conventional LAN operates to store the generated alarm in a queue and transmit the data to the registered management system 10.

However, this conventional technology has a problem that it is not possible to deliver alarms to multiple management systems when using a serial interface.

In the case of the prior art using the interface through a LAN, the loss of an alarm may occur by communicating through the LAN. When providing support for many management systems, it uses a lot of resources of the network element or improves the performance of the network element. There was a problem that could be reduced.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to effectively manage and store alarms inside network elements while minimizing the effect on the performance of network elements, and to prevent the loss of alarms. It is to provide an alarm management apparatus and method of the network element that can be delivered to the management system by preventing the error.

Alarm management device of a network element according to an embodiment of the present invention to achieve the above object,

An alarm management unit for detecting and managing an alarm occurring at a network element; A database storing alarms under management of the alarm manager; An interface unit connected to the alarm management unit to interface an alarm; The technical configuration is characterized in that it comprises a management system manager unit for registering and managing the management system connected to the interface unit and wants to receive an alarm.

Alarm management method of a network element according to an embodiment of the present invention to achieve the above object,

Extracting and processing an alarm at the network element; A second step of interfacing the alarm after the first step and transmitting the alarm to the management system manager; And a third step of managing the management system and sending out an alarm after the second step.

1 is a block diagram of an alarm management apparatus of a network element through a conventional serial interface,

2 is a block diagram of an alarm management apparatus of a network element through a conventional LAN,

3 is a flowchart illustrating an alarm management method of a network element through a conventional LAN;

4 is a block diagram of an alarm management apparatus of a network element according to the present invention;

5 is a block diagram showing a state in which FIG. 4 is applied,

6 is a flowchart illustrating an alarm management method of a network element according to the present invention;

FIG. 7 is a detailed flowchart of the first step in FIG. 6;

8 is a detailed flowchart of the third step in FIG.

FIG. 9 is a state transition diagram used in the third step of FIG. 6.

Explanation of symbols on the main parts of the drawings

10: management system 20: network element

21: alarm distribution 22: system

30: network element 31: alarm management unit

32: database 33: interface

34: first queue 35: second queue

36: management system manager

Hereinafter, an embodiment according to the present invention configured as described above, an alarm management apparatus for a network element and a method thereof will be described in detail with reference to the accompanying drawings.

4 is a block diagram of an alarm management apparatus of a network element according to the present invention.

As shown therein, an alarm manager 31 for detecting and managing an alarm occurring in a network element; A database 32 for storing alarms under management of the alarm manager 31; An interface unit 33 connected to the alarm management unit 31 to interface an alarm; It is configured to include a management system manager 36 is connected to the interface unit 33 and registers and manages the management system 10 to receive alarms.

The alarm manager 31 generates an alarm in the registered management system 10 and determines whether to send an alarm while continuously monitoring status information of the management system 10.

In the above, the database 32 stores the contents of the alarm management unit 31 each time an alarm occurs, enables the user to provision according to the state of the network element, and according to the priority of the alarm. Adjust the size of the store.

In the above, the interface unit 33 performs an interface between the alarm management unit 31 and the management system manager unit 36 using a queue.

The interface unit 33 may include: a first queue 34 temporarily storing alarms having a higher priority among alarms interfaced between the alarm manager 31 and the management system manager 36; And a second queue 35 that temporarily stores an alarm having a lower priority than an alarm temporarily stored in the first queue 34.

In the above, the interface unit 33 sets the size of the first queue 34 and the second queue 35 according to the priority of the alarm and the network state.

5 is a block diagram illustrating a state in which FIG. 4 is applied.

This shows the signal processing between the network element 30 and the plurality of management systems 10.

6 is a flowchart illustrating an alarm management method of a network element according to the present invention.

As shown therein, a first step ST10 of extracting and processing an alarm in the network element; A second step ST20 of interfacing the alarm after the first step and transmitting the alarm to the management system manager 36; And a third step (ST30) of managing the management system 10 and sending an alarm after the second step.

FIG. 7 is a detailed flowchart of the first step in FIG. 6.

As shown therein, a storage step (ST11) (ST12) for storing the generated alarm in the database 32 when an alarm occurs; A determining step (ST13) of determining a priority of an alarm after the storing step; After the determination step, a transmission step (ST14) of transmitting an alarm to the management system manager unit 36 through the interface unit 33 is performed.

The storage steps ST11 and ST12 allow the user to adjust the size of the database 32 to enable provisioning according to the state of the network element.

In the second step ST20, alarms having a higher priority and alarms having a lower priority are distinguished so that an alarm having a higher priority is first transmitted to the management system manager 36. FIG.

FIG. 8 is a detailed flowchart of the third step in FIG. 6.

As shown therein, the content of the registered management system 10 is managed, the communication status information between the management system 10 and the network element 30 is managed, and then the management system 10 determines whether the communication is possible. Steps ST21 to ST23; Determining whether communication of the management system 10 is restored if the management system 10 is not communicable (ST24); If communication of the management system 10 is possible or communication is restored, the method includes transmitting an alarm to the registered management system 10 (ST25).

FIG. 9 is a state transition diagram used in the third step of FIG. 6.

As shown therein, registering an IP address and name with respect to the management system 10 leads to an idle state 42, and removes the state of the management system 10. (Dead) state 41; Removing the state of the management system 10 goes to the dead state 41, and sending an alarm to the management system 10 goes to a process state 43 and the management An idle state 42 causing the state of system 10 to be idle; When the alarm transmission to the management system 10 is completed, go to the idle state 42, and when the time for the alarm transmission to the management system 10 elapses (Time Out), it goes to the sleep state 44. A process state 43 for causing an alarm transmission to the management system 10 to be performed; Removing the state of the management system 10 goes to the dead state 41, if there is a Receive Ack for the transmission from the management system 10 goes to the idle state 42, the reception response If not there is a sleep state 44 to put the management system 10 in the standby state.

The alarm management apparatus and method of the network element according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

First, the present invention aims to effectively manage and store alarms within a network element while minimizing the effect on the performance of the network element, and to prevent the loss of the alarm to be delivered to the management system.

Thus, the alarm manager 31 actually detects an alarm occurring in the network element 30, stores a data, and performs a series of operations for generating data to be sent.

The database 32 stores its contents each time an alarm occurs, and its size allows the user to ensure that provisioning is possible. The amount can then be adjusted according to the state of the network element 30 and according to the importance of the alarm.

The interface unit 33 uses the first queue 34 to temporarily store high priority alarms and the second queue 35 to temporarily store low priority alarms. Perform an interface between the 36. Thus, the first and second queues 34 and 35 are given priority and can be processed according to importance.

The management system manager unit 36 performs a function of registering and managing the management system 10 to receive the alarm. The alarm management unit 31 communicates with the queues 34 and 35 of the interface unit 33. In addition, it generates an alarm in the registered management system 10, and performs the function of determining whether to send an alarm while continuously monitoring the status information of the management system (10).

This invention performs those three steps. That is, as shown in FIG. 6, in the first step, the alarm is extracted and processed in the network element. In the second step, the alarm is interfaced and transmitted to the management system manager 36, and in the third step, the management system 10 is extracted. ) And send alarms.

Thus, the first step of extracting and processing the alarm is to read the register of the network element 30 or receive and process the event when the alarm actually occurs. Thus, when an alarm occurs, the generated alarm is stored in the database 32 and the priority of the alarm is determined. Then, the alarm is transmitted to the management system manager 36 through the interface 33. In this case, the size of the database 32 may be provisioned according to the state of the network element 30, and the initial value may be set to 1000.

In the second step, the alarm manager 31 distinguishes alarms having a higher priority from alarms having a higher priority, so that the alarm having a higher priority is first transmitted to the management system manager 36. That is, the interface unit 33 distinguishes between the first queue 34 and the second queue 35 according to the importance of the alarm.

In the third step, the management system 10 is managed and alarms are sent.

Thus, management system 10 must register its IP address and name to receive alarms generated by network element 30. And the line status must always be available for communication. It is necessary to manage the contents of the registered management system 10, and manage the communication status information between the management system 10 and the network element 30.

Then, it is determined whether the management system 10 can communicate so that the management system 10 capable of communication can send an alarm. If the management system 10 is not communicable, it is determined whether the communication of the management system 10 has been restored, and if the communication of the management system 10 is possible or the communication has been restored, to transmit an alarm to the registered management system 10. do. So the alarm is not sent for the management system 10 is lost communication is retransmitted when communication is restored.

The registered management system 10 is maintained in the states of dead, idle, process, and sleep.

The dead state 41 goes to the idle state 42 when the IP address and name are registered with the management system 10.

The idle state 42 goes to the dead state 41 when the state of the management system 10 is removed, and goes to the process state 43 when the alarm is sent to the management system 10. .

The process state 43 goes to the idle state 42 when the alarm transmission to the management system 10 is completed, and when the time for the alarm transmission to the management system 10 elapses (Time Out), the sleep state ( Go to 44).

Sleep state 44 goes to dead state 41 when the state of management system 10 is removed, and goes to idle state 42 if there is a Receive Ack for transmission from management system 10.

As such, the present invention effectively manages and stores alarms within the network element while minimizing the effect on the performance of the network element, and prevents the alarm from being lost and forwarded to the management system.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. That is, the present invention can be applied to all transmission equipment that requires the management of alarms or events. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the alarm management apparatus and method of the network element according to the present invention has the effect of efficiently managing the list of the management system. In other words, when an alarm occurs in multiple management systems, the network or system resources are used a lot, and when a retransmission occurs to prevent the loss of an alarm, the network may be subjected to more load. The system can reduce network load by putting a sleep mode in the management system that can't communicate while managing line status, and rests for a while, and handles alarms according to priorities. Can be reduced.

In addition, the present invention also has the effect that can utilize the system resources efficiently. In other words, compared to managing the history of alarms by a predetermined number, the user can determine the size or state of the network to adjust the number of alarms stored. By maintaining it, it is possible to increase the efficiency of using system resources.

Claims (12)

An alarm management unit for detecting and managing an alarm occurring at a network element; A database storing alarms under management of the alarm manager; An interface unit connected to the alarm management unit to interface an alarm; And a management system manager unit connected to the interface unit and registering and managing a management system that wants to receive an alarm. The method of claim 1, wherein the alarm management unit, Generating an alarm in the registered management system and determining whether to send an alarm while continuously monitoring status information of the management system. The method of claim 1, wherein the database, The alarm management unit stores the contents whenever an alarm occurs, enables the user to provision according to the state of the network element, and adjusts the storage size according to the priority of the alarm. Management device. The method of claim 1, wherein the interface unit, And a queue to perform an interface between the alarm management unit and the management system manager unit. The method of claim 4, wherein the interface unit, A first queue for temporarily storing alarms having a higher priority among alarms interfaced between the alarm manager and the management system manager; And a second queue configured to temporarily store an alarm having a lower priority than an alarm temporarily stored in the first queue. The method of claim 5, wherein the interface unit, And the size of the first queue and the second queue is set according to an alarm priority and a network state. Extracting and processing an alarm at the network element; A second step of interfacing the alarm to the management system manager after the first step; And a third step of managing the management system and sending an alarm after the second step. The method of claim 7, wherein the first step, A storage step of storing the generated alarm in a database when an alarm occurs; A determining step of determining a priority of an alarm after the storing step; And a transmitting step of transmitting an alarm to the management system manager unit through the interface unit after the determining step. The method of claim 8, wherein the storing step, And the user can adjust the size of the database to be provisioned according to the state of the network element. The method of claim 7, wherein the second step, The alarm management method of the network element characterized by distinguishing a high priority alarm and a low priority alarm so that a high priority alarm may be transmitted to the said management system manager part first. The method of claim 7, wherein the third step, Managing contents of a registered management system, managing communication status information between the management system and a network element, and then determining whether the management system is communicable; Determining if communication of the management system is restored if the management system is not communicable; And transmitting an alarm to the registered management system if the communication of the management system is possible or communication has been restored. The method of claim 7, wherein the third step, Registering an IP address and a name for the management system, the system goes to an idle state and removes the state of the management system; An idle state to go to the dead state when the state of the management system is removed, to go to a process state when an alarm is sent to the management system, and to idle the state of the management system; A process state for going to the idle state upon completion of alarm transmission to the management system, going to sleep when time for alarm transmission to the management system has elapsed, and performing an alarm transmission to the management system; Removing the state of the management system to the dead state, and if there is a response to the transmission from the management system to the idle state; Alarm management method of a network element, characterized in that to perform.