KR100600324B1 - Performance alarm processing system and method in high speed ATM networks - Google Patents

Abstract

The present invention relates to an apparatus and method for processing performance alarms in an asynchronous transmission mode ultrahigh speed information communication network, which is configured to properly handle performance alarms of network components necessary to ensure better service in an asynchronous transmission mode communication network. Considering the ease of use and scalability, performance data is collected when the performance monitoring function for the performance monitoring of necessary network components is activated in the network management system of hierarchical, high-speed communication network. By providing a device to handle the performance alarm when an alarm occurs, it is possible to apply the generated performance alarm to the network to prevent further degradation of the network performance and further prevent network failures. The network can be managed reliably.

Description

Performance alarm processing system and method in high speed ATM networks

1 is a functional block diagram of an asynchronous transmission mode / frame relay network management system (ATM FR NMS) to which the present invention is applied;

2 is a functional block diagram of a performance alarm processing apparatus in an asynchronous transmission mode ultra high speed information communication network according to a preferred embodiment of the present invention;

FIG. 3 is a flowchart illustrating a transaction guaranteed performance alarm processing process performed by the performance alarm processing apparatus shown in FIG. 2;

4 is a flowchart illustrating a processing routine for the traffic performance alarm severity executed by the performance alarm processing apparatus shown in FIG. 2;

FIG. 5 is a flowchart illustrating an operation processing process that is not processed due to a failure in the performance alarm processing apparatus shown in FIG. 2.

<Description of Symbols for Major Parts of Drawings>

201: operator, 203: VP routing table,

204: VC routing table, 205: connection management function,

206: ATM VP / VC configuration information table, 207: configuration management function,

208: event storage table, 209: fault management function,

210: performance management function unit, 240: performance monitoring unit,

244: performance alarm processing unit, 245: performance repair and maintenance unit,

246: Data processing unit.

The present invention relates to a performance alarm processing apparatus and method thereof in an asynchronous transmission mode ultra high speed information communication network, and more particularly to the basic principles of the overall communication management network, including the concept, scope, and management structure of the M.3010 communication network. The present invention relates to a performance alarm processing apparatus and a method for an asynchronous transmission mode ultra high speed information communication network for collecting, storing, and reporting data necessary for performance management as a part of the performance management system.

Currently, research and standardization related to communication network operation management are underway around ITU-T and ISO, which are international standardization organizations.In addition, in Europe, standardization research related to network operation management and to establish a management environment for integrated broadband communication A number of projects are underway to study the network management platform for communication network management that supports the establishment of open service structures and the integrated implementation of management services.

In particular, according to ITU-T's M.3400, performance management modules are classified into performance quality assurance, performance monitoring, and performance control.

In managing a large network, if the performance of the network components is monitored and the performance monitoring is used to eliminate the degradation of performance or prevent the degradation and prevent failures in advance, the reliability of the entire network and the efficiency of the network As a result, it is possible to improve the availability of communication facilities and to provide prompt communication services, and as a result, to satisfy users of the services provided through the network, thereby satisfying the quality of the services requested by the users. Performance management is very important in management.

The present invention has been made in view of the above-described circumstances. In the high-speed information communication network, the performance monitoring function is first activated for a device that requires performance monitoring for performance management. It handles the performance alarms so that the performance degradation of the entire network system is not expanded as a whole, while notifying the operator of the performance degradation so that it can respond quickly to the performance degradation. It is an object of the present invention to provide an apparatus and method for processing performance alarm in an asynchronous transmission mode ultra-high speed information communication network to enable appropriate response.

In order to achieve the above object, according to a preferred embodiment of the present invention, the performance alarm receiver for receiving the performance alarm generated in the components of the network and other layers of the system that the performance monitoring is active, and manages the performance alarm; A performance alarm processing unit for determining the type of the performance alarm and processing the performance alarm according to the processing routine for each type to reflect an alarm on the network resource component and the logical resource, the data on the performance alarm and the performance processing And a data processing unit for storing / managing all generated data and determining whether to store data according to whether the processing routine is successful.

Preferably, the type of performance alert includes an alert for traffic data, an alert for user parameter control, an alert for performance measurement, and an alert for traffic congestion.
Further, according to the present invention, receiving the performance alarm of the network generated from the lower layer network management system, determining the type of the performance alarm and processing based on the corresponding processing routine, based on the processing routine There is provided a method for processing performance alarms in an asynchronous transmission mode ultrahigh speed information network, comprising the steps of determining whether the processing of the performance alarms is successful and whether the information is stored.

delete

In the present invention, the type of performance alarm includes an alarm for traffic data, an alarm for user parameter control, an alarm for performance measurement, an alarm for traffic congestion, and a processing routine for processing the performance alarm is a network resource. It includes severity notification to management, severity notification to circuit connection management, data storage and processing status storage, and performance alarm notification to external systems.

In addition, if all the processing routines of the performance alarm are successfully processed, all data is stored, and if any one is not successfully processed, all data is discarded to maintain information consistency.

The traffic performance alarm processing routine determines the type of the circuit when the performance alarm is related to the logical circuit connection, and reflects the severity of the performance alarm for the connection point at which the performance alarm is generated according to the determination result. Reflect and notify the operator and other systems.

Preferably, the type determination of the circuit is performed on whether the circuit is a virtual path or a virtual channel. If the circuit is a virtual channel, the information on the connection point at which the performance alarm is generated is changed and a trail through the connection point is changed. Search and reflect the severity of the performance alarm for the traffic.If the circuit is a virtual path, it changes the information about the connection point where the performance alarm is generated, and examines whether the virtual path is an internal endpoint or an external endpoint. If it is an in endpoint, it reflects the severity and the severity of the performance of the virtual channel link in the virtual channel routing so that a new connection does not pass through the virtual channel link.

The traffic performance alarm processing routine may determine a corresponding object when the performance alarm relates to a component layer of a physical layer, and notify the operator and other systems after reflecting the performance alarm severity in the corresponding object according to the determination result. do.                         

If the object is one of a virtual path subscriber port and a frame relay port, a process reflecting the severity of the performance alarm for the port is performed. If the object is a port inside the network, whether the port is associated with a virtual path topology link is performed. Determining whether or not it is associated with the path link, if the associated with the virtual path topology link, reflects the severity of the performance alarm, and then reflected in the virtual path routing to limit the subsequent connection does not cross the topology link, and If relevant, it reflects the severity of the performance alerts and also the virtual path routing so that subsequent virtual path connections will not cross that link when requested.

Preferably, according to the present invention, the performance alarm in the unprocessed state interrupted by the system failure includes resuming the processing from the stopped position in the normal recovery of the system.

According to the present invention, when receiving the performance alarm of the network through the performance repair and reception unit in the asynchronous transmission mode ultra-high speed information communication network, the performance alarm processing unit propagates the performance alarm to the relevant system and processor or informs the operator and the network resource component or network By reflecting the severity of the alarm in the logical resources of the system, performance alarms such as preventing further performance degradation or resolving the cause of the performance degradation in the future are processed.

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

1 is a functional block diagram of an asynchronous transfer mode / frame relay network management system (ATM FR NMS) to which the present invention is applied.

In the figure, the operator denoted by reference numeral 201 shows almost all situations occurring in the network, for example, the configuration, operation, utilization of resources, connection / disconnection of lines occurring in real time, and events that occur frequently. ; Disability) can be identified. In addition, the operator 201 may transmit information necessary for the operation of the corresponding ATM FR NMS to each component through the screen.

Here, according to the main function of the corresponding ATM FR NMS, the connection management function unit 205, in response to the user's request to establish and release the connection and maintenance of the connection state, and manages the partial network (local network) When an event related to connection and disconnection of a line occurs while exchanging information with the Sub_NMS system 211 as a hierarchical network management system, it is responsible for notifying the occurrence of the event to a failure management function described later.

The configuration management function unit 207 efficiently manages network resources and maintains the network resource state in real time, and exchanges information with the Sub_NMS system 211 while generating events related to network resources. It is responsible for notifying the failure management function.

The failure management unit 209 monitors events from the outside and the inside of the system and takes appropriate measures according to the monitoring results.

The performance management function unit 210 is responsible for the performance measurement to know the performance of the network or the collection of the measurement result data, the storage of the result data while receiving the performance alarm when processing the function.

Here, each management function unit (205, 207, 209, 210) has to manage and store data for each unique function, the connection management function unit 205 is a virtual path (PC) to select the path of each connection It is associated with a VP routing table 203 and a VC routing table 204 for a virtual channel (VC), and the configuration management function 207 stores information of all network resources in the VP and VC layer. Is associated with an ATM VP / VC configuration information table (national network configuration information) 206 for managing / managing, and the fault management function unit 209 is associated with an event storage table 208 for storing and managing information of all events. do.

FIG. 2 is a functional block diagram including a performance alarm processing apparatus and a peripheral device according to the present invention related to the performance management function unit 210 shown in FIG.

In the figure, the operation receiving unit 241 of the performance monitoring unit 240 allows the upper layer system 230 or the operator 201 to deliver the performance monitoring activation operation to the network components or logical elements that need performance monitoring. When the operation is received, it is checked whether it is already activated. If the result of the inspection is still inactive, the operation is stored and managed in the data storage.

The performance monitoring activation unit 242 determines the performance monitoring function for the component or logical resource to be activated to process the activation of each function required for the component.

In addition, the threshold setting processing unit 243 processes a reference point necessary for the network component to generate a performance alarm, and for the reference point, an appropriate value should be set in view of the situation of the operator and the entire network.

The performance alarm processing unit 207, which is a part of the performance alarm processing apparatus, processes the alarm when a performance alarm occurs. The performance alarm processing unit 207 propagates the performance information to the related system and the processor or informs the operator and the network resource component or the logical resource of the network. By reflecting the severity of the alarm, performance alarms such as preventing further performance degradation in advance or resolving the cause of the performance degradation are processed.

In addition, the performance alarm unit 245 constituting the performance alarm processing apparatus receives the performance alarm generated from the components of the network and the lower layer other system 232 and manages the performance alarm.

The data processing unit 246 constituting the performance alarm processing apparatus stores / manages all information data related to activation of performance alarm, performance alarm data, and all data generated during performance processing.

The lower layer system 232 directly controls and manages the components of the corresponding network. The lower layer system 232 processes the performance monitoring activation and reports the performance alarm generated from the network components to the performance monitoring processor 244.

FIG. 3 is a flowchart for explaining transaction guaranteed performance alarm processing executed by the performance alarm processing apparatus shown in FIG.

First, an alarm is generated and transmitted from the Sub_NMS system 211 as a lower layer network management system that any one of the elements currently being activated for performance has generated a performance alarm (301). When the alarm is received by the performance alarm processing unit 244 through the performance repair and reception unit 245, data about the performance alarm is stored in the storage (302).

The performance alarm processor 244 determines what kind of alarm the received performance alarm is (step 304-1), where the types of performance alarms vary but as a general performance alarm, the alarm for traffic data ( 304-2), alert 304-3 for user parameter control, alert 304-4 for performance measurement, alert 304-5 for other performance (e.g., traffic congestion, etc.), and the like. .

Each alert is sent to the processing routine function unit, that is, the network resource management unit severity notification (304-5-1), the circuit connection management unit severity notification (304-5-2), and the data storage and processing status, as appropriate for the processing routine. The storage 304-5-3 selects and processes an external system performance alert notification 304-5-4.

When the processing routine is executed to store the information in order to maintain the changed or new information, the processing routine function unit prepares for storage in the logical component storage 306 (a-1). If each of the processing routines 304-5-1 to 304-5-4 of the processing routine functions is executed, the processing function stores the processed state in the storage, and each processing function successfully performs the performance processing. It is determined whether or not (b).

As a result, when all processing is executed normally, the logical component store is notified to store all data to be stored in the logical component store 306 (b-1). On the other hand, if each processing function part does not successfully execute any of the functions, all the data to be stored are discarded (c-1). Therefore, it is possible to maintain the consistency of information by the above-described processing.

4 is a flowchart illustrating a processing routine for the traffic performance alarm severity executed by the performance alarm processing apparatus shown in FIG.

When a traffic performance alarm occurs in the sub-layer network management system (Sub_NMS) 211 (1), the performance alarm processing unit 244 receives the alert (2) whether the data traffic is related to the component layer of the physical layer. Or for a line that is a logical component (3).

As a result of the determination, if the alert relates to a logical line connection (401), it is determined whether the line is a virtual path (VP) or a virtual channel (VC) (4). As a result of the determination, when the circuit is a virtual channel (5), the information on the connection point at which the performance alarm is generated is changed (5-1), and the trail through the connection point is searched for the performance alarm of the traffic. After reflecting the severity (5-2), it is notified to the operator or the system (5-3).

If the circuit is the virtual path (6), the information on the VP connection point where the performance alarm is generated is changed (404) and the VP is checked whether it is internally terminated or externally terminated (6- One). As a result of the check, if the VP is an end point in the network (6-3), since it is a VC link for VC connection, the information data is changed to reflect the severity and to the routing (6-5) (6-6). ). In addition, as the new connection is influenced in the future, the VC routing reflects the severity of the performance of the VC link (6-7) so that it is reflected when establishing a new circuit connection. If the performance alert indicates that there is a lot of traffic flowing, the new connection will not pass through the VC link so that no further performance degradation will occur, while notifying the operator or other related systems. 8).

On the other hand, if the result of the inspection in step 6-1 is that the VP is an endpoint outside the network (6-4), the trail through the connection point (6-9) is searched to reflect the severity of the performance alarm for the traffic ( 6-10) and then inform the operator or other system.

If the performance alert is related to the components of the physical layer in step 2 (402), the corresponding object is actually determined (5) to determine which one is the object (7). If the object is a VP subscriber port, it reflects the severity of the performance alert for that port (8-1) and informs the operator or other related systems (8-2). If the object is a frame relay port, it reflects the performance alert severity on the port (9-1) and then informs the operator or other related systems (9-2).

In response to the determination in step 7, when the object generates a performance alarm at the port 405 in the network instead of the VP subscriber port, it first determines whether the port is associated with the VP topology link or the VP link. (10) (11). If the port is associated with a VP topology link, it reflects the severity of the performance alert (10-1) and reflects it in the VP routing (10-2). This means that if the performance alert indicates that there is a lot of traffic flow, if a new VP connection is requested, it will not cross this topology link so that no further performance degradation will occur and further prevent failure (10-3). . Next, it is notified to the operator or other related systems (10-4).

When the port is associated with the VP link (11), the severity of the performance alarm is reflected (11-1) and then reflected in the VP routing (11-2). This means that if this performance alert indicates that there is a lot of traffic, the new VP connection is restricted to pass over this link to prevent further outage without any further degradation (11-3). Next, it is notified to the operator or other related systems (11-4). Doing so prevents the performance degradation of the entire network from becoming more severe while preventing failures from occurring.

FIG. 5 is a flowchart illustrating an operation processing process that is not processed due to a failure in the performance alarm processing apparatus shown in FIG. 2. That is, the flowchart of FIG. 4 relates to a method of continuously processing a performance alarm when the performance monitoring unit 240 becomes normal after the performance alarm processing is interrupted due to the failure of the performance monitoring unit 240.

The performance monitoring unit 240 examines a table to obtain information on unprocessed events (501). At this time, the information also includes information indicating how far this performance alarm process has been processed and stopped. Therefore, the performance alarm processing unit 244 determines the processing routine 502 of the performance alarm. At this time, the processing state is examined to determine an unprocessed portion (503) and the process starts from that portion (504).

In addition, the performance alarm processing unit 244 stores the state currently being processed in the storage every time the alarm processing (505). If all related systems or processors have been processed (506), the success of event processing is checked and if successful, it is stored in a table and the event is removed from the event list. In response to this, if the process is abnormally executed (509), the situation is informed to the operator (510).

As described above, according to the present invention, the performance in the state in which the performance monitoring function for monitoring the performance of the network components required in the network management system of the hi-speed communication network hierarchically divided in consideration of the ease and scalability of network management is activated By collecting the data and exceeding a certain threshold, if a performance alarm occurs, the system provides a device to handle the performance alarm. Therefore, the generated performance alarm is applied to the network to prevent further degradation of the network performance. Can prevent network failures in advance so that the network can be managed more reliably.

In addition, the processing of the generated alarms eliminates ambiguity and maintains consistent information between systems and processors, thereby eliminating ambiguity about network operation and improving network management reliability.

In addition, according to the present invention, when the processing system stops processing due to any failure, the system can process continuously from the point where the processing is stopped after the system is normally restored, so that the processing of the performance alarm has already occurred. Therefore, the reliability of performance alarm processing can be improved during network management.

Claims (14)

Performance and maintenance department for receiving the performance alarms generated from the components of the network and the lower layer other systems that the performance monitoring is active and manages the performance alarms; A performance alarm processing unit for determining the type of the received performance alarm and processing the performance alarm according to the processing routine for each type to reflect an alarm on a network resource component and a logical resource; And Asynchronous transmission mode characterized in that it comprises a data processing unit for storing and managing the data related to the performance alarm and all data generated during the performance processing, and determines whether to store the data according to the success of the processing routine. Performance alarm processing device in high speed information communication network. The method of claim 1, The processing routine may include a severity notification to the network resource management unit, a severity notification to the line connection management unit, data storage and processing state storage, and performance alarm notification to an external system. Device. Receiving network performance alarms generated from the lower layer network management system; Determining the type of the performance alarm and processing based on a corresponding processing routine; And determining whether or not to store the data according to the success of the processing routine to maintain the consistency of the information. The method of claim 3, wherein The type of performance alarm includes an alarm on traffic data, an alarm on user parameter control, an alarm on performance measurement, an alarm on traffic congestion, and a processing routine for processing the performance alarm includes a severity level for the network resource management unit. Method for processing the performance alarm in the asynchronous transmission mode high-speed information communication network, characterized in that the notification, the line connection management to the severity notification, data storage and processing state storage, the performance alarm notification to the external system. The method of claim 4, wherein If all the processing routines of the performance alarm is successfully processed, all the data is stored, and if any one is not successfully processed, the performance alarm in the asynchronous transmission mode ultrahigh speed information network is characterized by maintaining the consistency of information by discarding all the data. Treatment method. The method of claim 4, wherein The traffic performance alarm processing routine determines the type of the circuit when the performance alarm is related to the logical circuit connection, and reflects the severity of the performance alarm for the connection point at which the performance alarm is generated according to the determination result. And alarming and notifying the operator and other systems. The method of claim 6, The type determination of the circuit is performed on whether the circuit is a virtual path or a virtual channel. If the circuit is a virtual channel, the traffic information is changed by changing information on a connection point where a performance alarm is generated and searching for a trail through the connection point. Reflects the severity of the performance alarm for the system, and if the line is a virtual path, it changes the information about the connection point where the performance alarm occurred, and checks whether the virtual path is an internal endpoint or an external endpoint. A method for processing performance alarms in an asynchronous transmission mode high-speed information communication network, characterized in that a new connection does not pass through the virtual channel link by reflecting the severity and reflecting the severity of the performance of the virtual channel link in the virtual channel routing. The method of claim 6, The traffic performance alarm processing routine determines that the response object is related to the component layer of the physical layer, and reflects the performance alarm severity to the corresponding object according to the determination result, and then notifies the operator and the other system. A performance alarm processing method in a high speed information communication network. The method of claim 8, If the object is one of a virtual path subscriber port and a frame relay port, a process reflecting the severity of the performance alarm for the port is performed. If the object is a port inside the network, whether the port is associated with a virtual path topology link is performed. Determining whether or not it is associated with the path link, if the associated with the virtual path topology link, reflects the severity of the performance alarm, and then reflected in the virtual path routing to limit the subsequent connection does not cross the topology link, and If relevant, the performance alarm processing method of the high-speed information communication network, characterized in that it reflects the severity of the performance alarm and also reflected in the virtual path routing so that subsequent virtual path connection is requested. The method of claim 3, wherein Determining the performance alarm processing state and resuming the processing from the processing stop position in the presence of an unprocessed performance alarm due to a system failure. The method of claim 1, The type of performance alerts includes an alert for traffic data, an alert for user parameter control, an alert for performance measurement, and an alert for traffic congestion. The method of claim 1, wherein the data processing unit, In the asynchronous transmission mode ultrahigh speed information communication network, if all the processing routines of the performance alarm are successfully processed, all data is stored, and if at least one or more processing routines are not processed successfully, all data is discarded. Performance alarm processing unit. The method of claim 1, wherein the performance alarm processing unit, It is determined whether the received performance alarm relates to a logical line connection or a physical device port. When the received performance alarm relates to a logical line connection, the type of the line is determined, and the determination result. Performance alarm processing apparatus in the asynchronous transmission mode ultra-high speed information communication network, characterized in that it is executed to reflect the severity of the performance alarm for the connection point in which the performance alarm is generated and to notify the operator and other systems. The method of claim 13, wherein the performance alarm processing unit, Whether the circuit is a virtual path or a virtual channel, and if the circuit is a virtual channel, the information about the connection point at which the performance alarm is generated is changed and the trail through the connection point is searched for the severity of the performance alarm for the traffic. If the line is a virtual path, change the information on the connection point where the performance alarm is generated and check whether the virtual path is an internal endpoint or an external endpoint, and if it is an internal endpoint, reflect the severity and the virtual channel. An apparatus for processing performance alarm in an asynchronous transmission mode high speed information communication network, characterized in that a new connection does not pass through the virtual channel link by reflecting the severity of the performance of the virtual channel link in routing.

Images