KR20000037612A - Method for modifying and repairing operation and management data in switching system - Google Patents

Abstract

PURPOSE: A method for modifying and repairing operation and management data in the switching system is provided to improve the performance of the system by modifying and repairing the operation and management data of a system controller generated in improving the real-time performance of an exchange. CONSTITUTION: If the status modification of resources or charging and call processing statistics information is generated(301), a switching controller modifies control data in its internal memory(302). Then, the switching controller requests the modification of operation and management data to a system controller(303). If the system controller receives the request of the modification of the operation and management data(307), the system controller modifies the operation and management data(308) and transmits the result of the modification of the operation and management data to the switching controller(309). If the switching controller receives the result of the modification(304), the switching controller analyzes the modification result(305). As a result of the analysis, if the modification result failed or the response was not made, the switching controller marks to the modified control data that the modification of the operation and management failed(306).

Description

Operation and management data change and recovery method in exchange system

According to the present invention, in an exchange system in which real-time functions are distributed in an exchange controller and data processing functions having low real-time characteristics are processed in a system manager, when the exchange controller and the system manager exchange information or perform mutual control, the exchange controller is executed in real time. By changing and restoring the operation / management data of the system manager that may occur when improving the performance, the operation and management data change and recovery method that can match the data and improve the performance of the system, and a program for realizing the same. The present invention relates to a computer-readable recording medium having recorded thereon.

From voice exchange to data exchange, digital exchanges exchange various transmission methods, which have the characteristics of a real-time system.

However, such exchanges also require a lot of data work for real-time operation.

Electronic exchanges, including Asynchronous Transfer Mode (ATM) exchanges, have switches that are responsible for exchanging data with the processor, and matching hardware that matches external subscribers and relay lines, which are associated with each other by software mounted on the processor. It works by establishing an enemy relationship.

The exchange software implements call processing software that performs direct services in real time, from call origination to release, and maintenance software that provides a set of procedures to detect, isolate, and recover from abnormal behavior of hardware and software. Can be largely separated by software.

The software of the conventional exchange system is designed to concentrate on the function implementation depending on the system and the functions provided by the system. In addition, the software is configured in a functional design method that allows the processor to be mixedly accommodated in all processors in the exchange without distributing real-time functions and weak real-time functions.

However, this software configuration requires a lot of memory, so that the real-time call processing function is limited to using the memory, thereby limiting the number of calls that can be processed concurrently, thereby reducing real-time performance. Therefore, software that is made dependent on services and systems cannot be reused when the services and systems are changed.

As such, the conventional exchange system implements software in all systems regardless of real-time processing or management so that a large portion of the memory of the exchange system is occupied by non-real time functions, or a non-real time but comprehensive judgment is required. There is a problem in that the function is reduced in performance by operating in conjunction with the real-time function.

The present invention devised to solve the problems described above, in the exchange system that performs the real-time processing in the exchange controller of the exchange distribution structure and the information processing and operation management in the system manager, the exchange controller is the real-time performance of the exchange. By changing and restoring the operation and management data of the system manager that may occur when improving the system, the computer that records the operation and management data change and recovery method and the program for realizing the operation and management data to match the data to improve the performance of the system. The purpose is to provide a recording medium that can be read by.

1 is a block diagram of an exchange system to which the present invention is applied.

2 is an explanatory diagram showing a structure of software for configuring a flexible switching system to which the present invention is applied.

Figure 3 is a flow diagram of one embodiment of the operation / management data change process of the operation / management data change and recovery method in the exchange system according to the present invention.

4 is a detailed flowchart illustrating an operation / management data recovery process when an operation / management data change fails in an operation / management data change and recovery method in an exchange system according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: exchange controller 12: system manager

13: switch 14: subscriber terminal

The present invention for achieving the above object, in the operation and management data change and recovery method applied to the exchange system, according to the occurrence of the event of the exchange controller, the exchange controller changes the control data, and the changed control data of the system manager A first step of reflecting in the operation and management data; A second step of, when the change of operation and management data from the system manager fails, the exchange controller displays the failure result in control data; And for the control data in which the change failure operation and management data exist, the exchange controller requests a change of the operation and management data to the system manager to restore the operation and management data.

In addition, the present invention provides a switching system including a processor, the exchange controller changing the control data according to the occurrence of the event of the switching controller, and reflects the changed control data to the operation and management data of the system manager; A function of the switching controller displaying the failure result in the control data when the operation and management data change from the system manager fails; And to the control data in which the change and failure operation and management data exist, the exchange controller requests a change of the operation and management data to the system manager so as to realize a function for recovering the operation and management data. Provides a record medium that can be.

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

1 is a block diagram of an exchange system to which the present invention is applied.

An exchange system to which the present invention is applied includes one or more subsystems combined with a switching unit 113 for performing data exchange, matching units 111 and 112 connected to the switching unit 113, and a processor 114 for controlling the exchange. And an exchange controller 11, which is composed of a monitor 122, a computer main body 121, and a storage device 123, which is in charge of information processing and system management.

The matching units 111 and 112 of the switching controller 11 are connected to the external subscriber station 14 and the link 132 in the case of the subscriber matching device, and the other switching unit 13 and the link 131 in the case of the relay line matching device. Leads to.

The matching section 111 and the switching section 113 in the exchange controller 11 are connected by an internal data transmission link 118.

In the processor 114 of the subsystem of the exchange controller 11, software 115 for controlling data exchange and software 116 for controlling the control are mounted for the control of the matching unit 111 and the switching unit 113. .

In the case of multiple subsystems, the exchange can go through three stages of data exchange. At this point, there is a subsystem with a central switching section 117.

The system manager 12 is equipped with software 124 for managing the service state and resource state of the entire exchange controller 11 or managing information necessary for exchange, and is responsible for information processing and operator registration. In addition, the storage device 123 stores information on billing and service statistics.

2 is an explanatory diagram showing a structure of software for configuring a flexible switching system to which the present invention is applied.

The present invention is to design and apply an interface for information exchange between the exchange system in the structure to clarify the distribution between the functions for the real-time portion and the data processing portion for the convenience of the application program, such an interface constitutes the exchange and It is possible to implement the exchange function with the least influence on the difference of the existing hardware or the operating system to secure the development and reuse of the application function and to provide a unified exchange software platform.

In order to provide such a unified exchange software platform, the software 115, 116, 124 is located separately in the system manager 12 and the exchange controller 11.

The program of the exchange controller 11 resides in the memory, and the software 124 of the system controller 12 operates only in the memory 123 for the interfacing function for the application. Perform as needed in the function.

The real time operating system 201 is operated in the processor 114 of the exchange controller 11, and the general purpose operating system 211 is operated in the system manager 12.

The processor 114 of the exchange controller 11 and the system manager 12 exchange information by a communication protocol.

The application program interface 210 is provided in the exchange controller 11 so that modification of the application software does not occur depending on the type of protocol that the real time operating system 201 of the exchange controller 11 can accommodate.

Software 124 of system manager 12 utilizes a remote library, remote shared memory, and remote process to communicate with software 115 and 116 of exchange controller 11. An application program interface 210 for this purpose is located in the exchange controller 11. In addition, the system manager 12 also operates an application program interface 212 for communication required by the exchange controller 11. At this time, the interface for accessing the system manager 12 from the exchange controller 11 is a remote program execution and a remote file access method.

The processor 114 of the exchange controller 11 performs real time tasks such as signal processing, call control, number translation, route control, and the like (203).

The call service statistics collection unit 202 is notified of the progress of the real-time operation, and the statistical information notified to the call service statistics collection unit 202 is provided to the system manager 12 through the application program interface 210 provided in advance. It is delivered to the billing / statistics unit 219 via the application program interface 212 of the and is stored in the operation / management information database 218. The various information and data to be referred to in this real time task utilize the control data 204 in the shared area on the memory.

The control data 204 is changed by being changed and maintained through the system manager 12 and by the events occurring in the exchange controller 11. Here, the event in the switch controller 11 is a substantial service and failure state change.

The change of the fault state is changed by the state monitoring unit 205 and the testing unit 206. In addition, the change of the failure is transmitted to the failure analysis and alarm output unit 217 of the system manager 12 through the application interface unit 210, 212, the contents are delivered to the operation / management information database 218 and at the same time It is output to the web browser 228 of the operation manager via the web server 226 via the management interface 225 which is a common gateway, and is transmitted to the integrated network manager 229 through the integrated network management application interface 227. do.

When the system manager 12 changes the control data 204 of the switching controller 11, it is changed by a request from an operation manager or a network management center.

The request of the operation manager is via the operation interface 225, which is a common gateway implemented using the web server 226 and the web browser 228. The operation interface analyzes the input command to operate the programs 213 to 216 in the corresponding system manager 12.

For example, when an operator request for signal point registration, number registration, route registration, and service registration 213 is input, the corresponding program 213 is operated via the management interface 225 to operate the operation / management information database. After changing 218, the control data 204 is changed through the service control unit 207 of the exchange controller 11 via the application program interface unit 212, 210, and based on the changed control data 204 in real time. The function is activated.

On the other hand, when a request relating to startup management is input, the startup management unit 214 interacts with the startup control unit 209 of the exchange controller 11 to load the necessary function into the exchange controller 11.

When the change in the exchange configuration is input, the shape change unit 215 is operated to change the shape related matters in the control data 204 via the shape control unit 208 of the exchange controller 11.

When a control command for whether the test or monitoring is in progress is input, the system control unit 216 is operated to change the control data 204 via the state monitoring unit 205 or the test unit 206 in the exchange controller 11. do.

In this manner, the contents changed by the operator command in the system manager 12 are reflected in the operation / management information database 218 and the control data 204 of the system manager 12, and an event occurring in the exchange controller 11 is also included. It is stored in the control data 204 and the operation / management information database 218 of the system manager 12.

Thus, commands related to the output of various information or the status of services and resources may be performed by the system manager 12 itself. As a function of the system manager 12, the call control information output unit 220, the resource status output unit 221, the charging statistics information output unit 222, the shape output unit 223, and the system control information output unit 224. There is).

As described above, the structure of the software for the flexible switching system configuration to which the present invention is applied is the software in the system manager 12 without using message communication between the software in the processor 114 of the switching controller 11. Do not use message communication between them. In addition, since the application software does not directly use the message communication between the processor of the switch controller 11 and the processor of the system manager 12, and uses the application program interface units 210 and 212, the software is converted into system-independent software. Can increase the reusability of the exchange system software.

As such, the software structure for the flexible exchange system configuration to which the present invention is applied is classified into various types of software loaded and executed in the exchange system as having real-time characteristics and information processing characteristics. It has the advantage of improving the exchange performance by using a general-purpose computer, and communicates the interface between the exchange controller responsible for real-time control and the system manager, which is a general-purpose computer responsible for information processing. Use application program interfaces to avoid protocol restrictions.

Therefore, the software structure for flexible switching system configuration can always be used independently of the configuration of the switching controller 11. In addition, the software in the real-time exchange controller 11 also has a simple software configuration, thereby improving reusability, and when using a general-purpose computer, the information processing related program does not need to reside in memory because of its weak real-time characteristics.

Therefore, the software structure for flexible switching system configuration uses a common gateway technique using the web server 226 to execute a program that does not reside in memory by an operation / management command. In addition, an integrated network management application program interface is designed and provided to use a management program written in a modular form within a general-purpose computer without any change.

3 is a detailed flowchart illustrating an operation / management data change process in the operation / management data change and recovery method in the exchange system according to the present invention.

The present invention changes the control data according to the occurrence of the event of the switching controller 11, and in order to change the operation and management data of the system manager 12, the switching controller 11 requests the system manager 12 to change the information. Later, when the change is received and the change is failed, the change data may be indicated in the control data to maintain the consistency of the real-time control data and the operation / management data. Here, the control data is located in the memory of the exchange controller 11 to perform real time processing, and the input / output-oriented operation and management information data for information processing is located in the system manager 12.

As shown in FIG. 3, the process of changing the operation / management data of the system manager 12 in the exchange controller 11 of the operation / management data change and recovery method in the exchange system according to the present invention is first performed by the exchange controller. When the state change of the resource in the switching controller 11 or the charging and call processing statistics information is generated (301) (301), the switching controller 11 changes the control data in the internal memory (302).

Thereafter, the exchange controller 11 requests the system manager 12 to change the operation and management data (303).

Subsequently, when the system manager 12 receives the operation and management data change request from the exchange controller 11 (307), changes the operation and management data (308), and sends the result of the change of the operation and management data to the exchange controller ( 11) (309).

Next, when the exchange controller 11 receives the change result of the operation and management data from the system manager 12 (304), the change result is analyzed (305).

As a result of the analysis, if the change result fails or does not receive a response, it indicates that the change of the operation and management data has failed in the changed control data (306). Here, when the change of the control data fails, it corresponds to a case where the writing of the operation and management data in the system manager 12 fails or the communication between the exchange controller 11 and the system manager 12 is lost.

4 is a detailed flowchart illustrating an operation / management data recovery process when an operation / management data change fails in an operation / management data change and recovery method in an exchange system according to the present invention.

In order to solve the discrepancy between the control data of the exchange controller 11 and the operation and management data of the system manager 12, the system manager transmits the control data, which has been indicated as change failure in the case of normal communication. By requiring a change to (12) and recovering it, data consistency can be maintained.

As shown in FIG. 4, in the operation / management data change and recovery method of the exchange system according to the present invention, operation and management data when the operation and management data change of the system manager 12 fails in the exchange controller 11. The recovery process first analyzes whether the communication with the system manager 12 is normal in the exchange controller 11 (401).

As a result of the analysis, if the communication with the system manager 12 is determined to be abnormal, the exchange controller 11 analyzes whether the communication with the system manager 12 is normal (401), and if it is determined to be normal, the operation recorded as a change failure. And check whether the management data exists in the control data (402).

As a result of the check, if the change failure operation and control data does not exist in the control data, the exchange controller 11 analyzes whether the communication with the system manager 12 is normal (401), and if it exists, operates and manages the system manager 12. A change of data is requested (403). Thereafter, when the change result of the operation and management data is received from the system manager 12 (404), the exchange controller 11 determines the change result of the operation and management data from the system manager 12 (405).

As a result of the determination, if the change result is determined to be failure, the exchange controller 11 analyzes whether the communication with the system manager 12 is normal (401). If it is determined to be successful, the operation and management data recorded as the change failure is recorded in the control data. After modifying to successful change (406), it is analyzed whether the communication with the system manager 12 is normal (401).

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

The present invention as described above, the present invention as described above, the processor of the exchange controller using a variety of application program interface using a general purpose computer in the exchange system based on distributed processing consisting of one or more exchange control processor and Software configuration that can be used independently of the system structure without restriction of communication protocols ensures flexibility of the system configuration of the exchange controller, and reduces the waste of resources that may occur when the software of real-time and information processing characteristics is mixed. There is an effect that can increase performance in software architecture. In particular, the present invention has the effect of keeping the data of the switching controller and the system manager consistent through the configuration arrangement according to the characteristics of the software.

Claims (6)

In the operation and management data change and recovery method applied to the exchange system, A first step of changing, by the exchange controller, control data according to an occurrence of the event of the exchange controller, and reflecting the changed control data to the operation and management data of the system manager; A second step of, when the change of operation and management data from the system manager fails, the exchange controller displays the failure result in control data; And A third step of changing the operation and management data by requesting a change of the operation and management data to the system manager for the control data in which the change failure operation and management data exists; Operation and management data changes and recovery methods, including. The method of claim 1, The first step is, A fourth step of changing, by the switching controller, control data in an internal memory when a state change of the resource in the switching controller or charging and call processing statistics information is generated in the switching controller; A fifth step in which the exchange controller requests the system manager to change operation and management data; And A sixth step of changing the operation and management data when the system manager receives a request to change the operation and management data from the exchange controller; Operation and management data changes and recovery methods, including. The method according to claim 1 or 2, The second step, A seventh step of transmitting, by the exchange controller, a change result of the operation and management data to the exchange controller; An eighth step of analyzing the change result when the exchange controller receives a change result of the operation and management data from the system manager; And A ninth step of indicating that the change of the operation and management data has failed in the changed control data if the result of the analysis in the eighth step fails or does not receive a response; Operation and management data changes and recovery methods, including. The method of claim 3, wherein The third step, A tenth step of analyzing in real time whether communication with the system manager is normal in the exchange controller; As a result of the analysis of the tenth step, if communication with the system manager is determined to be abnormal, the process proceeds to the tenth step, and if determined to be normal, an operation for checking whether the operation and management data recorded as a change failure exists in the control data. 11 steps; A twelfth step, if the check result of the eleventh step does not exist in the control data, if the change failure operation and control data does not exist in the control data; A thirteenth step when the exchange controller determines a change result of the operation and management data from the system manager, when a change result of the operation and management data is received from the system manager; And As a result of the determination of the thirteenth step, if the change result is determined to be failure, the process proceeds to the tenth step. If it is determined to be successful, the tenth step after correcting the operation and management data recorded as the change failure in the control data to the change success. 14th Steps Going On Operation and management data changes and recovery methods, including. The method of claim 4, wherein The exchange system, And real-time functions are executed in the exchange controller, and data processing functions having less real-time characteristics are distributed in the system manager. The exchange system with a processor, A function of changing the control data by the exchange controller and reflecting the changed control data to the operation and management data of the system manager according to occurrence of an event of the exchange controller; A function of the switching controller displaying the failure result in the control data when the operation and management data change from the system manager fails; And Change failure The control controller requests the change of operation and management data to the system manager for the control data in which operation and management data exist, and restores the operation and management data. A computer-readable recording medium having recorded thereon a program for realizing this.