KR100299057B1 - Method for ontrol data processing in switching system - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a method of changing and restoring control data in an exchange system and a computer-readable recording medium having recorded thereon a program for realizing the method.

2. The technical problem to be solved by the invention

The present invention relates to an exchange system that executes real-time processing in an exchange controller of an exchange distribution structure and improves real-time performance of performing information processing and operation management in a system manager. By changing and restoring the control data of the switchable controller, a method of changing and restoring control data for matching the data to improve the performance of the system and a computer-readable recording medium recording a program for realizing the method are provided. box.

3. Summary of Solution to Invention

The present invention provides a method for changing and restoring control data in an exchange system, wherein a real time function is executed in an exchange controller, and a data processing function having less real-time characteristics is distributed in a system manager. A first step of changing operation and management information and reflecting the changed operation and management information to the control data of the exchange controller; A second step of, when the control data change from the switching controller fails, the system manager displays the failure result in operation and management information; And for the operation and management information in which change failure control data exists, the system manager requests a change of control data to the exchange controller to recover control data.

4. Important uses of the invention

The present invention is used in distributed processing exchange system and the like.

Description

Control data change and recovery method in exchange system {Method for ontrol data processing in switching system}

According to the present invention, in an exchange system in which real-time functions are distributed in the exchange controller and data processing functions having low real-time characteristics are processed in the system manager, the system manager may exchange the information between the exchange controller and the system manager or control the mutual performance. By changing and restoring control data of an exchange controller that can occur when improving the real-time performance of the system, a method for changing and restoring control data and a program for realizing the method can be used to match the data to improve the performance of the system. A computer readable recording medium for recording 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.

In order to solve the above problems, the present invention provides a system manager in an exchange system that executes real-time processing in an exchange controller of an exchange distribution structure and improves real-time performance of performing information processing and operation management in a system manager. By changing and restoring the control data of the exchange controller that may occur when the real time performance of the exchange is to be improved, the control data change and recovery method for matching the data to improve the performance of the system and a program for realizing the method Its purpose is to provide a computer-readable recording medium having recorded thereon.

1 is an exemplary configuration diagram of an exchange system to which the present invention is applied.

2 is a diagram illustrating an embodiment of software for a flexible switching system configuration to which the present invention is applied.

3 is a detailed flowchart of an embodiment of a control data change process of a control data change and recovery method in an exchange system according to the present invention;

4 is a detailed flowchart illustrating a control data recovery process when a control data change fails in a control 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

In order to achieve the above object, the present invention provides a method for changing and restoring control data in an exchange system, wherein a real-time function is executed in an exchange controller, and a data processing function having less real-time characteristics is distributed in a system manager, Accordingly, the first step of the system manager changes the operation and management information, and reflects the changed operation and management information to the control data of the exchange controller; A second step of, when the control data change from the switching controller fails, the system manager displays the failure result in operation and management information; And a third step of the system manager requesting a change of control data to the exchange controller to recover control data with respect to operation and management information in which change failure control data exists.

In addition, the present invention, in order to change and restore the control data, in the exchange system having a processor, the real-time function is executed in the exchange controller, and the data processing function with less real-time characteristics is distributed in the system manager, according to the operation instruction, A first function in which the system manager changes operation and management information and reflects the changed operation and management information in the control data of the exchange controller; A second function that, when the control data change from the switching controller fails, the system manager displays the failure result in operation and management information; And for operation and management information in which change failure control data exists, the system manager requests a change of control data to the exchange controller to implement a third function for recovering control data. Provide a record carrier.

The present invention seeks to secure the versatility of the interface between the operator and the network management system and the real-time exchange controller in the exchange system consisting of a system manager and a distributed exchange controller by dividing the real-time and non-real-time characteristics of the exchange.

To this end, the present invention receives and inputs a command input to the system manager in a structure in which operator command processing and system control data are located in the system manager for an exchange system consisting of a workstation and a system manager configured as a workstation. After determining whether the variable is normal and changing the control data in the system manager, the result is reflected in the exchange controller used in real time.

Therefore, in the present invention, the real-time processing is executed in the exchange controller of the exchange distribution structure, and the information processing and operation management is executed in the system manager so that the software can support the flexibility of the exchange system configuration and improve the real-time performance of the exchange system. .

Looking at the characteristics of the present invention, the software that is loaded on the exchange is classified as having a real-time characteristics and information processing characteristics, so that the software with a strong real-time characteristics is loaded on the exchange and the function of the information processing function Take advantage of using a general-purpose computer to improve the exchange performance, and use the application program interface so that the interface between the exchange controller in charge of real-time control and the system manager, a general-purpose computer in charge of information processing, is not restricted by the communication protocol. . Therefore, the software mounted on the general purpose computer can always be used independently of the configuration of the switching controller. The software in the real-time exchange controller also has a simple software configuration, which improves reusability. When using a general-purpose computer, programs related to information processing do not need to reside in memory because of their weak real-time nature. Therefore, the common gateway method using a web server is used to execute a program that does not reside in memory by an operation / management command. In addition, the integrated network management application program interface is designed and provided so as to use the management programs created by modularization in the general-purpose computer without any change.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of an exchange system to which the present invention is applied.

As shown in FIG. 1, an exchange system to which the present invention is applied includes a switching unit 113 that executes data exchange, a matching unit 111 and 112 connected to the switching unit 113, and a processor 114 that controls the exchange. An exchange controller 11 composed of one or more subsystems coupled together, and a system manager 12 composed of a monitor 122, a computer body 121, and a storage device 123, which is in charge of information processing and system management. It is provided.

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 a diagram illustrating an embodiment of a software structure 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 operates, and the software 124 of the system controller 12 operates only in the memory for the application program, and the application software resides on the disk and is required for the interface function. Run at hour.

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 collecting unit 202 is notified of the progress of the real-time work, and the statistical information notified to the call service statistics collecting unit 202 is transmitted to the system manager 12 through the predefined application interface 210. 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 a 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 a control data change process in a control data change and recovery method in an exchange system according to the present invention.

The present invention changes the control data from the system manager 12 to the exchange controller 11 in order to change the operation and management information according to the operation command in the system manager 12 and to reflect the changed operation and management information in the control data. If the control controller fails to change the control data in response to the change, the operation and management information and the real-time control data are displayed by indicating that the change of the real-time control data has failed in the operation and management information. Can maintain consistency. 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 control data of the exchange controller 11 in the system manager 12 of the control data change and recovery method of the exchange system according to the present invention is first operated in the system manager 12. If a command is input (301), the operation command is checked for errors (302).

As a result of the inspection, if there is an error, an error result is output (308). If there is no error, after changing the operation / management information (303), the control unit 11 requests a change of control data (304).

Thereafter, when the exchange controller 11 receives the control data change request from the system manager 12 (309), it changes the control data (310) and responds to the system manager 12 with the control data change result (311). .

Next, when the system manager 12 receives the control data change result from the exchange controller 11 (305), it analyzes the change result (306).

As a result of analysis, if the change result is failure or no response is received, the changed operation / management information indicates that the control data change has failed (307), and a failure result is output (308), and if the change result is successful, a success result is output. (308).

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

In order to solve the discrepancy between the operation and management information of the system manager 12 and the control data of the exchange controller 11, the system manager 12 displays operation and management information that has been indicated as a change failure in a normal communication. By requesting a change to the exchange controller 11 to recover it, the consistency of the data can be maintained.

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

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

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

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

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

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.

As described above, the present invention provides a system structure without limiting the processor and communication protocol of the exchange controller using various application program interfaces using a general purpose computer in a switching system based on distributed processing including one or more exchange control processors. Independent software configuration ensures flexibility of the system configuration of the exchange controller, reduces the waste of resources that can occur when the real-time and information processing software is mixed, and increases the real-time performance in the software architecture. It has an effect. In particular, the present invention has the effect that the data of the switching controller and the system manager can be kept consistent through the configuration arrangement according to the characteristics of the software.

Claims (5)

In the control data change and recovery method in the exchange system, The real-time function is executed in the exchange controller, and the data processing function with less real-time characteristics is distributed in the system manager, A first step of changing, by the system manager, operation and management information according to an operation command, and reflecting the changed operation and management information in the control data of the exchange controller; A second step of, when the control data change from the switching controller fails, the system manager displays the failure result in operation and management information; And A third step of the system manager requesting a change of control data to the exchange controller to recover the control data, for the operation and management information in which the change failure control data exists; Control data change and recovery method in the exchange system comprising a. The method of claim 1, The first step is, A fourth step of checking whether there is an error in the operation command when an operation command is input to the system manager; A fifth step of outputting an error result if there is an error in the fourth step, and requesting a change of control data to the exchange controller after changing operation and management information if there is no error; And A sixth step of changing control data when the exchange controller receives a control data change request from the system manager; Control data change and recovery method in the exchange system comprising a. The method according to claim 1 or 2, The second step, A seventh step of the exchange controller transferring a control data change result to the system manager; An eighth step of analyzing, when the system manager receives a control data change result from the exchange controller; And If the result of the analysis of the eighth step is that the change result is failure or no response is received, the failure result is output after indicating that the control data change has failed in the changed operation and management information, and the success result is output if the change result is successful. 9 steps Control data change and recovery method in the exchange system comprising a. The method of claim 3, wherein The third step, A tenth step of analyzing in real time whether communication with the switching controller is normal in the system manager; As a result of the analysis of the tenth step, if communication with the switching controller is determined to be abnormal, the process proceeds to the tenth step. If it is determined to be normal, the control unit checks whether control data recorded as change failure exists in the operation and management information. 11 steps; A twelfth step of, if the check result of the eleventh step does not exist in the operation and management information, the change failure control data is passed to the tenth step, and if there is, the twelfth step of requesting a control data change to the exchange controller; A thirteenth step of determining, by the system manager, a control data change result from the exchange controller when a control data change result is received from the exchange controller; And As a result of the determination of the thirteenth step, if it is determined that the change result is failed, the process proceeds to the tenth step. If it is determined that the change is successful, the tenth step after modifying the control data recorded as the change failure in the control and management information to the change success. 14th Steps Going On Control data change and recovery method in the exchange system comprising a. In an exchange system having a processor for changing and restoring control data, Real-time functions are executed in the exchange controller, and data processing functions with less real-time characteristics are distributed in the system manager, A first function of changing, by the system manager, operation and management information and reflecting the changed operation and management information in the control data of the exchange controller according to the operation command; A second function that, when the control data change from the switching controller fails, the system manager displays the failure result in operation and management information; And A third function, for the operation and management information in which the change failure control data exists, the system manager requests the change of the control data to the exchange controller to recover the control data; A computer-readable recording medium having recorded thereon a program for realizing this.