KR100303981B1 - On-line Database Change Method Of Switching System - Google Patents

Abstract

The present invention relates to a method for changing an online database of an exchange system, and more particularly, in the case of expanding or reducing hardware in an exchange system, an online database of an exchange system that receives a related man-machine command (MMC) command to change the database online It is about a change method.

In the past, when hardware equipment was added or reduced in an exchange system, physical errors in the process of PLD (Processor Load Data) backup and MT (Magnetic Tape) handling and errors in the production of a new PLD could occur. It was necessary to perform the monitoring operation of, and as the entire PLD was reapplied even for simple hardware expansion, the time required for hardware expansion or reduction and the service interruption time were long, which lowered the reliability and safety of the entire exchange system.

The present invention is to change the database of the relevant PLD online for each expansion unit of the MP / PP / PBA (Main Processor / Peripheral Proceesor / Printed Board Assembly) according to the result of receiving and analyzing the MMC instruction related to hardware expansion or reduction of the exchange system As a result, the time required for the expansion or reduction of the corresponding hardware and the downtime of the service can be shortened, thereby improving the reliability and safety of the entire exchange system.

Description

On-line Database Change Method Of Switching System

The present invention relates to an online database change method of an exchange system, and more particularly, to an online database change method of an exchange system that can change an online database by receiving a related MMC command when adding or reducing hardware in an exchange system.

In general, an exchange system must change processor load data (PLD), which is a collection of databases based on a relational data model that takes the form of a table when adding its own functionality or adding or demounting hardware equipment. As shown in FIG. 1, the corresponding PLD 14 controls various application processors under the control of an operating system 13 that controls the execution of various programs for performing the functions of the exchange system. Managed by a database management system 12 that handles retrieval and change requests of data required by 11-1 through 11-n, hardware configuration information, subscriber information, relay line information for communication to other stations, and It includes all kinds of information for operational preservation.

On the other hand, in order to change the database of PLD in the exchange system, the PLD is backed up to MT (Magnetic Tape) and data is extracted, converted and added / deleted using an engineering program on the workstation. Through this process, new data is produced by adding necessary data, and the PLD produced offline is applied to the operating exchange system again.

For example, when the hardware is expanded in the conventional exchange system, the operation of changing the database of the PLD for operating the expanded hardware will be described with reference to FIG. 2.

The operator of the exchange system receives the hardware equipment to be expanded from the system supplier and installs it in the exchange system (step S21).

After that, the database of the PLD is changed to apply the expanded hardware. First, the system operator checks whether the switching system is normal, and then backs up the PLD, which is a relation data set, to the MT and requests a work from the system supplier. Step S22). At this time, a suit is kept in the operating station for emergency and a suit is sent to the system supplier for expansion work.

Accordingly, the system supplier extracts all data necessary for operating the system from the MT whose PLD is backed up, and then converts the extracted binary data into a workable text format (step S23).

Then, the data of the converted text format is changed (added, deleted, or modified) related to the expansion hardware (that is, the system operator requests a change on the workstation) (step S24), and then converted into binary data. After conversion, a new PLD is produced and recorded in the MT (steps S25 and S26).

Then, the system supplier sends the MT with the new PLD recorded to the system operator, and the system operator transfers the PLD recorded in the MT according to the prescribed application procedure to apply the newly produced PLD to the exchange system. In this case, the switching system returns to the normal state after a long service interruption caused by the application of the new PLD.

If a new PLD is applied to the switching system to operate the expanded hardware without any error, the switching system performs the monitoring operation for a long time, and when the new PLD is applied from the time when the PLD is backed up to MT. The processing made up to now is also registered as new data (step S28).

Meanwhile, in the related art, even when adding a function of the exchange system or reducing or relocating hardware equipment, the same operation method as the hardware expansion and offline database change of the exchange system is performed. In this case, the PLD backup and MT handling process The physical error in Esau and errors in the process of going through several steps for the production of a new PLD could occur, and the reliability of the exchange system was degraded due to service interruption (more than 30 minutes) when applying the PLD.

In order to verify the integrity of the PLD, it was necessary to carry out long-term monitoring after applying the PLD to the switching system, and the time required for the hardware expansion of the switching system as the entire PLD of the switching system should be reapplied even for simple hardware expansion. The longer (more than 2 hours) could severely impact the reliability and safety of the entire system.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The object of the present invention is to online a database of related PLDs for each expansion unit of MP / PP / PBA according to a result of receiving and analyzing MMC commands related to hardware expansion or reduction of an exchange system. In order to improve the reliability and safety of the entire exchange system by reducing the time required for the expansion or reduction of the hardware and the service interruption time.

1 is a diagram showing a configuration for PLD management of a conventional exchange system.

2 is a flowchart illustrating a database change operation of a PLD when hardware is expanded in a conventional exchange system.

3 is a diagram illustrating a configuration for changing an online database of an exchange system according to the present invention.

4 is a flowchart of an online database change operation of the exchange system according to the present invention.

5 is a diagram illustrating an extension-related MMC instruction according to the present invention.

Explanation of symbols on the main parts of the drawings

31: MMP (Man-Machine Processor) 31-1: Management command block

32: OMP (Operation and Maintenance Processor) 32-1: Configuration data management block

33: Access Switching Processor (ASP)

33-1: PLD (Processor Load Data)

Features of the present invention for achieving the above object, the process of receiving and analyzing the hardware expansion-related MMC command; Generating a corresponding child processor according to the analysis result and changing a database of the PLD according to the hardware expansion; It involves restarting the processor and applying the changed database.

In this case, in the process of changing the database of the PLD according to the hardware expansion, analyzing the hardware expansion-related MMC instruction, if the MP expansion-related MMC instruction generating an MP extension child processor; Copying the PLD file initialized for the expanded ASP; Changing the PLD header information and the duplicate relations and related relation data; Restarting all MPs by transmitting a restart signal to the parent processor and the loading block of the other MPs; The method may further include receiving an ASP extension-related MMC command, and further, generating an ASP extension child processor when the ASP extension-related MMC command is received; Changing related relation data for allocating timeslot and highway card quantities to the PLD of the expanded ASP; And restarting OMP and ASP by transmitting a restart signal to a parent processor and the ASP loading block.

Generating a PP extension child processor in the case of a PP extension-related MMC instruction as a result of analyzing the hardware extension-related MMC instruction in the process of changing the PLD database according to the hardware extension; Changing the duplicate relation and related relation data for the extended PP in the PLD of the ASP including the expanded PP; The method may further include restarting all MPs by transmitting a restart signal to the parent processor and the loading block of the other MPs.

The method may further include: generating a PBA extension child processor when the PBA extension-related MMC instruction is determined as a result of analyzing the hardware extension-related MMC instruction in the process of changing the PLD database according to the hardware extension; Changing the duplicate relation and related relation data for the enrichment PBA in the PLD of the ASP including the expanded PBA; And restarting the OMP and the ASP by transmitting a restart signal to the parent processor and the loading block of the ASP.

On the other hand, in the process of applying the changed database by restarting the relevant processor, if the application of the database according to the hardware expansion is not normally performed, if the MP / PP expansion is reversed and then re-added, if the PBA expansion is repeated Characterized in that the expansion is performed, and in the case of adding a plurality of hardware, the associated processor is restarted after changing the database of the PLD according to all the hardware expansion.

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

The configuration for changing the online database of the exchange system according to the present invention includes a management-manipulation processor (MMP) 31 including a management command block 31-1 and configuration data management as shown in FIG. 3. An operation and aintenance processor (OPM) 32 comprising a block 32-1 and a plurality of access switch processors 33 (ASPs) each including a respective PLD 33-1, which are input from an operator terminal. When the hardware expansion-related Man-Machine Command (MMC) command is transferred from the management command block 31-1 of the MMP 31 to the configuration data management block 32-1 of the OMP 32, the corresponding configuration data management block ( 32-1) changes the database of the PLD 33-1 according to the hardware expansion, and restarts the associated processor (MP, OMP or ASP) to apply the database changed according to the hardware expansion to the ASP of the switching system. do.

At this time, the configuration data management block 32-1 belongs to the data handling subsystem, and is a software block implemented in the ITU-T standard high-level language CHILL (ITU-T High Level Language) language, and resides in the OMP 32. It is generated at the start of the main processor (MP), and generates a corresponding child processor when an MMC instruction related to the expansion of hardware equipment such as MP, a peripheral processor (PP), or a printed board assembly (PBA) is received.

The hardware expansion and online database change operation of the exchange system according to the present invention configured as described above will be described in detail with reference to FIG. 4.

First, the system operator receives the hardware equipment to be expanded from the system supplier, installs it in the exchange system (step S41), and inputs the expansion-related MMC command using the operator terminal to apply the expanded hardware (step S42). The input expansion-related MMC command is transmitted to the configuration data management block 32-1 of the OMP 32 by the management command block 31-1 of the MMP 31.

At this time, the expansion-related MMC command includes the extended ASP identification number and type and restart information in the case of the MP extension, as shown in the accompanying drawings, and in the case of the ASP expansion, assigns the extended ASP identification number and the time slot assignment of the ASP. The capacity information and the highway card quantity information (USTA PBA quantity of LSI0, USTA PBA quantity of LSI1) and restart information according to time slot allocation. In the case of PP expansion, the ASP identification number including the expanded PP, the expanded PP identification number and form, and PBA quantity information and restart information in the expanded PP, and in the case of PBA expansion, the PP including the expanded PBA and It includes the ASP identification number, first and second PBA quantity information and restart information in the corresponding PP.

Accordingly, when the parent processor of the configuration data management block 32-1 analyzes the input expansion-related MMC instruction (step S43), and generates a corresponding child processor, the child processor expands. In this case, the hardware-related database is changed. In this case, the changed hardware-related database includes redundant relation data corresponding to initial data (relational data of the same structure basically present in a plurality of processors) and other related relation data (plural). Different relation data of the same structure existing in the same processor and unique relation data existing in each processor), which is again divided into processor shape information, subhighway configuration information, block list, link configuration information, timeslot allocation information, Include hardware implementation information and alarm fault information. do.

As a result of analyzing the expansion-related MMC instruction input in step S43, in the case of the MP expansion-related MMC instruction, the corresponding parent processor generates the MP extension child processor (step S44), and the MP extension child processor has the same structure as the expanded ASP. After the initialized PLD file having the same size as the PLD file existing in the ASP is copied (step S45), the PLD header information and duplicate relation data of the copied PLD file are changed (step S46).

At this time, the identification number of the extended ASP is recorded in the corresponding PLD header information, and the transaction processing is performed to change the corresponding PLD header information and the duplicate relation data.

Similarly, the MP extension child processor changes the relevant relation data for the enlarged ASP (step S47), and when all database changes are completed, the restart signal is transmitted to the parent processor and the loading block of the other MP.

Therefore, the loading table is reconfigured by the parent processor of the configuration data management block and the loading block of each MP, so that all the MPs of the corresponding exchange system are restarted, and thus the database changed according to the expansion of the MP, that is, the PLD file, the operating system, and the application. The processor is loaded into the expanded ASP (step S48), the MP extension child processor is automatically killed, and the parent processor transitions to the Dormant state.

As a result of analyzing the expansion-related MMC instruction input in step S43, in the case of the PP expansion-related MMC instruction, the corresponding parent processor generates the PP expansion child processor (step S49). As it is a lower layer, while the ASP operates normally, it changes the database according to the PP extension in the ASP's PLD.

That is, the PP extension child processor changes the duplicate relation data and related relation data for the PP added to the PLD of the ASP including the expanded PP (step S50), and when all database changes are completed, the parent processor and the other MP are completed. The restart signal is transmitted to the loading block of.

Accordingly, the loading table is reconfigured by the parent processor of the configuration data management block and the loading block of other MPs, and as the MPs of the corresponding exchange system are restarted, the database changed according to the expansion of the corresponding PP, that is, PP information is transferred to the PLD of the ASP. Loading (step S51), the PP extension child processor is automatically destroyed, and the parent processor transitions to the idle state.

As a result of analyzing the expansion-related MMC instruction input in step S43, if the MBA instruction related to PBA extension, the corresponding main processor generates a PBA extension child processor (step S52), and the PBA extension child processor is a PBA extension child processor. As it is a hierarchical, the PP and ASP operate normally, and the database according to the PBA extension to the PLD of the ASP is changed.

That is, the corresponding PBA expansion child processor changes the redundant relation data and related relation data for the PBA added to the PLD of the ASP including the expanded PBA (step S53). The restart signal is transmitted to the loading block of the ASP including the PBA.

Accordingly, as the OMP and the ASP are restarted by the parent processor of the configuration data management block and the loading block of the ASP, the database, that is, PBA information changed according to the PBA extension of the exchange system, is loaded into the PLD of the ASP (step S54). The PBA extension child processor is automatically destroyed and the parent processor transitions to the idle state.

On the other hand, when the above-mentioned MP extension is performed, the ASP extension must be performed so that the expanded ASP can perform the corresponding service. First, the ASP extension-related MMC command inputted from the operator terminal is the OMP configuration data management block. When received, the parent processor of the configuration data management block generates an ASP extension child processor, and the ASP extension child processor generates related relation data for allocating the ASP timeslot and the number of highway cards to the PLD of the expanded ASP. After all changes are made, the restart signal is sent to the parent processor and the corresponding ASP loading block when all database changes are completed.

As the OMP and the ASP are restarted by the parent processor of the configuration data management block and the ASP loading block, the changed database is loaded into the PLD of the ASP according to the expansion of the ASP of the switching system, and the ASP extension child processor is automatically Is destroyed, and the parent processor transitions to the idle state.

In addition, the present invention receives the expansion-related MMC command inputted from the operator terminal to change the PLD according to the hardware expansion of the switching system to change the database of the relevant PLD online for each MP / PP / PBA unit, PLD for each unit If the database change is finished, go through the verification process and proceed to the next process if it is normal. Otherwise, if it is an MP / PP expansion, delete it in reverse, and then perform the expansion function again. You can check.

In addition, when a plurality of MP / PPs are added in the process of MP / PP expansion, a restart may be performed only once after all PLD changes according to the MP / PP expansion are completed without restarting each time the PLD changes according to each MP / PP expansion. In the case of MP or PP expansion, all MPs are restarted. In the case of ASP or PBA expansion, an ASP or an expanded ASP including an OMP and an expanded PBA is restarted.

The expansion range for each MP / PP / PBA unit described above is as follows.

The MP extension includes the ASS_T (Access Switching Subsystem_Trunk) type and the ASS_W (ASS_Wireless) type, and the PP extension includes the ASS_T type Digital SEPT Interface Processor (DCIP) and ASS_7 (ASS_No.7 Signaling) type CCSP (Central Control subsystem). Processor), Primary Rate Interface Processor (PRIP) of type ASS_M (ASS_M), and Frame Relay Interface Processor (FHIP) and DCIP of ASS_F (ASS_F Relay) type, and the corresponding PBA extension includes PBA and ASS_I (ASS_ISDN) in PP. PBA in an ISAP (ISDN Subscriber Access Processor) of the type.

On the other hand, even in the case of hardware reduction in the exchange system according to the present invention, the reduction and the online database change operation receives the reduction-related MMC command in the same manner as the above-described hardware expansion and online database change according to the hardware reduction.

Therefore, if the online database change method of the exchange system according to the present invention is applied, the backup or verification of the corresponding PLD becomes unnecessary, and the hardware is increased (decreased) as the hardware is added or reduced for each MP / PP / PBA unit. The time required for the installation (3 to 10 minutes for each unit) and the service interruption time (less than a few seconds) are reduced.

In addition, the embodiment according to the present invention is not limited to the above-described embodiments, and various alternatives, modifications, and changes can be made within the scope apparent to those skilled in the art.

As described above, the present invention changes the database of the related PLD online for each expansion unit of MP / PP / PBA according to the result of receiving and analyzing the MMC instruction related to hardware expansion or reduction of the exchange system, thereby requiring the corresponding hardware expansion or reduction. This reduces time and service downtime, improving the reliability and safety of the entire exchange system.

Claims (13)

Analyzing and receiving an MMC command related to hardware extension; Generating a corresponding child processor according to the analysis result and changing a database of the PLD according to the hardware expansion; Restarting the associated processor to apply the changed database. The method of claim 1, The PLD database changed according to the hardware expansion is divided into redundant relation data and related relation data, and includes processor shape information, subhighway configuration information, block list, link configuration information, time slot assignment information, hardware implementation information, and alarm fault. A method of changing an online database of a switching system, comprising information. The method of claim 1, In the process of changing the PLD database according to the hardware expansion, analyzing the hardware expansion-related MMC instruction and generating an MP expansion child processor when the MP expansion-related MMC instruction; Copying the PLD file initialized for the expanded ASP; Changing the PLD header information and the duplicate relations and related relation data; Restarting all MPs by transmitting a restart signal to the parent processor and the loading block of the other MPs; A method for changing an online database of a switching system, the method comprising: receiving an ASP expansion-related MMC command. The method of claim 3, wherein The MP extension-related MMC instruction includes an extended ASP identification number, a form, and restart information. The method of claim 3, wherein And the initialized PLD file is a PLD file having the same size as a PLD file existing in an ASP having the same structure as the enlarged ASP. The method of claim 3, wherein Generating an ASP extension child processor when the ASP extension-related MMC instruction is received; Changing related relation data for allocating timeslot and highway card quantities to the PLD of the expanded ASP; And restarting OMP and ASP by transmitting a restart signal to a parent processor and the ASP loading block. The method according to claim 3 or 6, wherein And the ASP extension-related command includes capacity information for timeslot allocation of the expanded ASP, highway card quantity information and restart information according to the timeslot allocation. The method of claim 1, Generating a PP extension child processor when the hardware extension-related MMC instruction is analyzed and the PP extension-related MMC instruction is changed in the process of changing the PLD database according to the hardware extension; Changing the duplicate relation and related relation data for the extended PP in the PLD of the ASP including the expanded PP; And restarting all MPs by transmitting restart signals to the parent processor and loading blocks of other MPs. The method of claim 8, The PP expansion-related MMC instruction includes an ASP identification number including an expanded PP, an expanded PP identification number and type, and PBA quantity information and restart information in the expanded PP. . The method of claim 1, Generating a PBA extension child processor when the PBA extension-related MMC instruction is determined as a result of analyzing the hardware extension-related MMC instruction in the process of changing the PLD database according to the hardware extension; Changing the duplicate relation and related relation data for the enrichment PBA in the PLD of the ASP including the expanded PBA; Restarting the OMP and the ASP by transmitting a restart signal to a parent processor and a loading block of the ASP. The method of claim 10, The PBA extension-related MMC instruction includes a PP and ASP identification number including the PBA extension, first and second PBA quantity information and restart information in the PP. The method of claim 1, In the process of restarting the relevant processor to apply the changed database, if the application of the database according to the hardware expansion is not normally performed, if the MP / PP expansion is reversed, the deletion is reversed and then the expansion is repeated. A method of changing an online database of a switching system, characterized in that for performing. The method of claim 1, The method of changing an online database of a switching system, wherein when the plurality of hardware is added, the database of the PLD according to all the hardware expansions is changed and then the associated processor is restarted.