KR100639871B1 - Event handling system and method in high speed ATM networks - Google Patents

Abstract

The present invention is asynchronous transmission mode high-speed information communication network for processing to ensure a transaction (Transaction) is guaranteed if any event (for example, system failure, operational failure, etc.) occurs in the asynchronous transmission mode of the high-speed information communication network The present invention relates to an event processing apparatus and a method thereof, and an event processing method of an event generated by another system / processor in an asynchronous transmission mode / frame relay network management system of a hi-speed In the case of processing, it is possible to remove the ambiguous processing state and maintain consistent information between systems / processors so that the efficient use of network resources and the reliability of network management are improved.

Description

Event handling system and method in high speed ATM networks

1 is a block diagram illustrating a functional block configuration of an asynchronous transmission mode ultra high speed information communication network to which a preferred embodiment of the present invention is applied;

2 is a functional block diagram of a management system (ATM FR-NMS) for managing an asynchronous transmission mode / frame relay (ATM FR) network of the ultra-high speed information communication network shown in FIG. 1;

3 is a functional block diagram of an event processing apparatus in an asynchronous transmission mode ultra high speed information communication network according to the present invention;

4 is a flowchart illustrating an event processing process by the event processor shown in FIG. 3;

FIG. 5 is a flowchart for maintaining information consistency of events sequentially processed in the event processor shown in FIG. 3;

FIG. 6 is a flow chart for maintaining information consistency of events processed in parallel in the event processor shown in FIG.

FIG. 7 is a flowchart illustrating a process of processing an event not processed by a system failure in the event processor illustrated in FIG. 3.

<Description of Symbols for Major Parts of Drawings>

302: receiving unit, 303: queue,

304: processing unit, 305: storage unit,

306: Table A of Storage unit, 309: Event Attribute Table.

The present invention relates to an event processing apparatus and method in an asynchronous transmission mode ultra-high speed information communication network, and more particularly, according to the basic principles throughout the communication management network including the concept, scope, management structure, etc. of the communication network of M.3010. Event processing in asynchronous transmission mode high speed information communication network for processing in the state that transaction is guaranteed for events generated during operation as part of fault management system among implemented asynchronous transmission mode management system of high speed information communication network It relates to an apparatus and a method.

Currently, research and standardization on the operation management of telecommunication networks are being promoted centering on ITU-T and ISO as international standardization organizations.In addition, in Europe, standardized research on telecommunication operation management and integrated management environment of broadband communication Research on the network management platform for communication network management that supports the establishment of an open service structure and the integrated implementation of the management service for the construction of the project is under development / development.

In the case of managing a large network, the management of events (failures) becomes very important. The systematic and efficient treatment of such failures is the reliability of the entire network, the efficiency of the network, the availability of communication facilities, and the rapid communication service. Will be linked to the provision of. In addition, real-time monitoring of faults, proactive monitoring for preventive maintenance, pre-detection, notification of events at the appropriate time, and maintenance of performance are supported. Therefore, fault handling is very important in asynchronous transmission mode management of high-speed information network. Will take place.

Accordingly, the present invention has been made in view of the above circumstances, and when an event occurs in an asynchronous transmission mode of a high-speed information communication network, it guarantees a transaction in the rapid processing of the failure, thereby ensuring consistency between each processor and the system. The purpose of the present invention is to provide an event processing apparatus and method in an asynchronous high-speed information communication network to ensure the handling of failures continuously even if a failure occurs in a system that handles failures.

In order to achieve the above object, according to a preferred embodiment of the present invention, the event processing apparatus in the asynchronous transmission mode high-speed communication network to receive an event in association with an external system / other processor and provide a result of processing the event. A receiving unit for receiving the entirety of the received event, a low-order table A for storing the received event, a memory queue having a priority based on the priority of the event, and based on a processing option for the event processing; Table B of the storage unit in which an event is selectively stored, an event attribute table in which information about processing options and priorities for each event are recorded, and an event is taken from the queue and the event is processed according to each event processing routine. In addition to processing the changed information based on the event processing result, The event-handling device according to the up / systems and Asynchronous Transfer Mode information highway have consistent information is configured to include a processor for performing the management information is provided.

In addition, according to the present invention, in a method for processing an event generated in a high-speed information communication network including an asynchronous transmission mode network and a frame relay network, the event generated in a component of the network is received and the event information is stored in the table A Storing the stored information in the memory queue; and storing the stored information in a memory queue based on a priority, and determining and processing a processing routine for each event, in another system or in the system required by the processing routine of the event. Calling another processor and storing the end of event processing when all of the calls are terminated, and then removing the event according to the processing option or waiting for the operator's action; where the event stops when the event processing ends abnormally To allow the processing to continue again from The event processing method in an asynchronous transfer mode, information highway is configured is provided.

According to the present invention, if the abnormal processing termination of the event occurs, the event is further stored in table B of the storage unit according to the event attribute information for the continuous processing further comprises the event processing The option becomes changeable.                         

It also includes storing the event processing state in the middle of processing the event to prepare for a system / processor failure during the event processing.

Sequential processing of the event is performed in a state of maintaining consistency of information with other systems or with other processors in the system, and maintaining the consistency of information is necessary for the processor / system required from a processor / system called by an event handler client. A sequential call is made, and the event handler client is notified about the result of the processing routine of each processor / system, and the storage / discard of the event processing result is informed based on the notification result. .

In addition, the parallel processing of the event is executed in a state of maintaining information coherence with other systems / processors, and the information coherency is maintained by the number of threads (all systems / processors independently processed by the event handler client). Thread), and each called system / processor processes all events according to its processing routine and stores the processing results and reports them to the client, and the event handler client receives from all the calling system / processors. If normal processing is performed on the basis of the processing result, the data is stored. If abnormal processing is performed, the current event processing result data is discarded.

The processing of the unprocessed event is determined by the event processor based on the information on the unprocessed event, and the processing routine for the event is determined based on the processing status of the event. Determine the portion and resume processing of the corresponding event from the determined portion, and the event handler stores the current processing state in the processing state of the event every time the event is processed, and if all related systems or processors are processed It checks whether the processing is successful and saves it in the table when it succeeds, and then removes the event from the event item. If the processing is abnormal, it notifies the operator of the situation.

According to the event processing apparatus and method in the asynchronous transmission mode ultra-high speed information communication network according to the present invention described above, in parallel with the case that is sequentially processed by the event processor for events occurring in any component constituting the network. In this case, information can be kept consistent with other systems / processors.

In addition, in the state where the processing of the event is stopped due to the failure of the system, the unprocessed event is determined and reprocessed from the unprocessed part, so that the maintenance and operation of the network can be effectively performed. do.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a block diagram illustrating a functional block configuration of an asynchronous transmission mode ultra high speed information communication network to which a preferred embodiment of the present invention is applied.

According to the figure, the high-speed information communication network 100 includes an asynchronous electric mode (ATM) network 111, a frame relay (FR) network 112 and the Internet network 113 and the corresponding interworking device Connected to the public telephone / data network (PSTN / PSDN) and the wireless network 115 through the 105 and 106, and the asynchronous transmission mode (ATM) network 111 is connected to the frame relay through the corresponding interlocking device (103, 104). FR) network 112 and the Internet network 113 is connected.

In addition, the asynchronous transmission mode / frame relay network management system of the high-speed information communication network 100 to manage the network divided into a layer network (VP, VC) and a partial network 110 in consideration of the ease and scalability of network management. Sub-NMS (101) is responsible for the management of each partial network.

In addition, the high-speed information communication network 100 provides a video and various data including audio, and is connected to the ADSL 109 and various terminal devices 107 and 108 as a device for providing such a service.

2 is a functional block diagram of an ATM FR network management system (ATM FR NMS), the operator 201 is generated in real time in all the situations that occur in the network, that is, the configuration of resources, operation, utilization, real-time It is possible to check the connection / disconnection of the line and the failure that occurs frequently. In addition, the operator 201 is able to provide each component through the screen information necessary for its operation during the operation of the corresponding ATM FR network management system.

Here, the main functional blocks of the ATM FR network management system are roughly divided into four. That is, the ATM FR network management system establishes and releases a connection at the request of a user, maintains the connection state, and exchanges information with a sub network management system (Sub_NMS) 101 that manages the partial network 110. A connection management function unit 205 for performing a notification function to a failure management function unit, which will be described later, when a failure related to connection and disconnection between a network and a circuit occurs; Efficient management of network resources, maintenance of network resource status in real time, and configuration management for notifying failure management to be described later when a failure related to network resources occurs when exchanging information with the sub-network management system (Sub_NMS) 101. A function unit 207; A fault management function unit 209 for monitoring faults transmitted from the outside and the inside of the system and performing appropriate measures according to the result of the monitoring; In the case of receiving a performance alert while performing performance measurement to determine the performance of the network, collecting the measurement result data, and storing the result data, a performance management function unit 210 in charge of the processing is included.

In addition, the function units 205, 207, 209, and 210 as the management objects need management / storage of data in order to perform their own functions, so that the connection management function unit 205 is a path of each connection. It is associated with a VP routing table 203 for the virtual path VP and a VC routing table 204 for the virtual channel VC to select.

The configuration management function unit 207 is linked to an ATM VP / VC configuration information table 206 for storing and managing information of all network resources in a virtual path (VP) and a virtual channel (VC) layer as a hierarchical network. In addition, the failure management function unit 209 is linked to the event storage management unit 208 for storing information of all failures.

3 is a functional block diagram of an event processing apparatus in a high-speed information communication network according to a preferred embodiment of the present invention, in which an event processor denoted by reference numeral 300 receives a failure in association with an external system / other processor 301 and the failure thereof. It provides the result of the processing, and interacts for the maintenance of consistent information about the data generated during the processing of the fault.

Here, the main function of the event processor 300 is composed of three parts to be described later.

First, the receiver 302 receives the entire event as it occurs and the received event is once stored in Table A 306 of the storage 305 to maintain information upon receipt thereof, and then based on its priority. It is stored in the queue 303 having a priority, and is not stored or stored in the table B (307) of the storage unit 305 based on the processing option for each predetermined event processing. Here, the information on the processing options and the priority for each event is stored in the event attribute table 309.

The processing unit 304 takes an error from the queue 303 and processes the event according to each event processing routine 308, and in some cases calls an external system / other processor 301, and processes the event. Information management is performed to maintain the state so that event processing can be completed and to have information consistent with the processor or system to which the changed information is based on the event processing result.

4 is a flowchart illustrating a general event processing process. If an event occurs in any component of the network (step 400) and the occurrence of the event is transmitted to the event processor 300 of FIG. 3, in step 401 the receiving unit 302 receives the event and receives the event in step 402. All information of the event is stored in the table A 306 of the storage unit 305.

In this case, the table A 306 stores all events regardless of the processing options of the events. If the operator 201 becomes available for network analysis later, the system or the result after the network analysis is displayed. It is used to determine the exchange and repair request of each device, and to store the initial state of event information in preparation for the loss that may occur during the processing of the event.

In addition, with respect to the table B 307, the event is stored or not stored according to the event attribute information determined in step 404. The event processing option may be changed according to the judgment of the operator 201. In this case, the main purpose of the table B 307 is that the receiving unit 302 takes the priority, processing option, and severity of the event set in each event from the event attribute table 309 to determine the event attribute at the time of reception. Combined with, you have all the information you need to handle the event. It is also used to keep the processing state from time to time to continue processing the event once the system is down for any reason and then restored normally again.

The processing unit 304 which proceeds in parallel with the receiving unit 302 selects and sequentially imports events from the memory queue 303 based on priorities (steps 420 and 421), and the imported events are determined for each event. Processing is performed according to the routine (step 422). At this time, the event processing state is stored during processing to prepare for a system / processor failure during processing (step 423).

Here, depending on the processing routine, in case of an event, N different systems must be called or other processors in the system can be called. In step 424, it is checked whether all of such calls are terminated. If all of them are terminated, the end of event processing is stored in step 425, and then, in step 426, the event is removed according to the processing option or the operator waits for action. On the other hand, if the event processing is abnormally terminated, in step 427, the state is returned to the state before the abnormally terminated event is processed, and the result is notified to the operator 201 in step 428.

The operator 201 then finds out from another event why the event that was abnormally terminated at step 420 was not processed, at which time the operator 201 takes the appropriate action at step 430 and then again at step 431. The corresponding event is activated so that an abnormally terminated event can be continuously processed again from the stop position of the processing.

5 is a flowchart illustrating a process for processing in a state where information is consistent with respect to an event executed by an event processing apparatus in a high speed information communication network according to the present invention.

First, the client 500 of the event handler calls the processor / system A to process the event (5-1). The called processor / system A executes its processing routine in step 510 (511) and then calls processor / system B again (5-3), and the called processor / system B again calls another processor / system C. Assuming (5-6), the processor / system C prepares a data store to process 531 its processing routine and store the result.

Then, processor / system C 530 notifies processor / system B of its processing result (5-6-1). If the processor / system B has already prepared to store the processing result 522, and the result notified by the processor / system C 530 is justified, the processor / system B continuously processes its processing routine and writes to the data of the processing result. It is ready to store (522).

If the processing result of the processor / system C 531 is not justified, the processor / system B 520 stops processing and informs the processor / system A of the state (5-4-5). . Then, the processor / system A 511 prepares to store the result for the routine which has already been processed, receives the processing result of the processor / system B 520, and if the processing result is determined to be normal, the processor / system A 511 prepares the remaining processing routine. On the other hand, the processor continually processes and prepares to store the processing result value (5-2-2). If the processing result of the processor / system B 520 is abnormal, the processing routine is interrupted and an event is displayed. The processor client 500 will be notified. Accordingly, the event processor client 500 checks the processing result value and notifies the storage of data (512, 522, 532) if all processes are normal, whereas if abnormal processing has been performed, the event processing value of the event processed so far. You will be notified of the disposal.

FIG. 6 is a flowchart for maintaining information coherence of events processed in parallel in the event handler illustrated in FIG. 3. First, the event handler client 600 may have as many threads as all the systems / processors processed independently of other processors. It is called by (Thread) to perform the processing in parallel (1, 2, 3). It is assumed herein that the relevant systems / processors are A 610, B 620, and C 630, respectively.

The called system / processor A 610 prepares the storage (1-1, 1-2) of data generated after all processing according to its processing routine and informs the event processor client 600 of the processing result. (1-3). The called system / processor B 620 also prepares the storage (2-1, 2-2) of data generated after all processing according to its processing routine and informs the event processor client 600 of the processing result ( 2-3). Similarly, the system / processor C 630 also prepares to store the data generated after all processing (3-1, 3-2) according to its processing routine and outputs the processing result to the event processor client 600. (3-3).

Therefore, the event handler client 600 checks the result values informed by all the calling systems / processors and stores the data (512, 522, 532) in the case of normal processing, while discarding the data written so far in case of abnormal processing. Will be done.

FIG. 7 is a flowchart illustrating a process of processing an event not processed by a system failure in the event processor illustrated in FIG. 3. The event processor 700 examines a log table to obtain information on unprocessed events. The information includes information on how far the corresponding event has been processed and stopped. (701).

Accordingly, the event processor 700 determines a processing routine for the event (702), examines the processing state, determines an unprocessed portion, and resumes processing from the determined portion (703, 704).

Then, the event processor 700 stores the current processing state in the processing state for each processing (705), and if all related systems or processors are processed (706), the event processor 700 checks whether the event processing is successful or not (707). In step 710, the event is stored in a table and then the event is removed from the event item (708), but if it is abnormally processed (709), the operator is notified of the situation (710).

As described above, according to the present invention, in the case of processing an event generated by another system / processor in an asynchronous transmission mode / frame relay network management system of a hi-speed communication network hierarchically configured in consideration of the ease and scalability of network management. By eliminating ambiguous processing conditions and maintaining consistent information between systems / processors, efficient use of network resources and reliability of network management are improved.

In addition, according to the present invention, if the system processing the event is interrupted due to any failure, even if the event is interrupted after the system is normally restored again, the processing can be continuously processed for the event that has already occurred. By ensuring that is completed, the reliability of event processing during network management is improved.

Claims (7)

In order to receive an event in association with an external system / other processor and provide a result of processing the event, an event processing apparatus in an asynchronous transmission mode high speed communication network may include: a receiving unit which receives the entire event; A low table A for storing the received event; A memory queue having a priority based on the priority of the event, Table B of the storage unit for selectively storing the event based on a processing option for the event processing; An event attribute table in which information on processing options and priorities for each event is recorded; And a processing unit which takes an event from the queue, processes the event according to each event processing routine, and performs information management so that the changed information based on the event processing result has information consistent with an associated processor / system. Event processing device in a high-speed information communication network. In the method for processing an event generated in a high-speed information communication network including an asynchronous transmission mode network and a frame relay network, Receiving an event generated in a component of the network and storing the event information in table A of the storage unit; An event of the stored information is selectively provided to a memory queue based on priority to determine and process a processing routine for each event; Calling another system required by the processing routine of the event or another processor in the system, and when all of the calls are completed, storing the end of the event processing and removing the event according to the processing option or waiting for the operator's action; And if the event processing is abnormally terminated, performing the processing again from the stop position of the event again. The method of claim 2, In the case where abnormal processing ends of the event occurs, the event may be selectively stored in Table B of the storage unit according to the event attribute information for continuous processing, and the event processing option may be changed. Event processing method in asynchronous transmission mode ultra-high speed information communication network, characterized in that. The method of claim 2 or 3, And storing the event processing state in the middle of processing the event to prepare for a system / processor failure during the event processing. The method of claim 2, Sequential processing of the event is performed in a state of maintaining consistency of information with other systems or with other processors in the system, and maintaining the consistency of information is necessary for the processor / system required from a processor / system called by an event handler client. A sequential call is made, notified to the event processor client about the result of the processing routine of each processor / system, and notified of the storage / disposal of the event processing result based on the notification result. Event processing method in asynchronous transmission mode ultra-high speed communication network, characterized in that. The method of claim 2, Parallel processing of the event is performed in a state of maintaining information coherence with other systems / processors, and information coherence is equal to the number of all system / processors that are independently processed by an event handler client. Each called system / processor processes all events according to its processing routine and stores the processing result and reports it to the client, and the event handler client processes from all the calling system / processors. The event processing method in the asynchronous transmission mode ultrahigh speed information communication network, which is executed by storing data when the normal processing is performed based on the result, and discarding the current event processing result data when the abnormal processing is performed. . The method of claim 2, In the processing of the unprocessed event, the event processor determines the processing status of the corresponding event based on the information on the unprocessed event, determines a processing routine for the event, and processes the unprocessed part based on the processing status of the event. Determine and resume processing of the corresponding event from the determined portion, and the event processor stores the current processing state in the processing state of the event every time the event is processed, and if all related systems or processors are processed, Event processing in the asynchronous transmission mode high-speed information communication network, characterized in that the event is checked by success or stored in a table upon success, and then the event is removed from the event item, but if abnormally processed, the operator is notified of the situation. Way.

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