KR100443633B1 - Method for Addition Subsystem in ATM Switching System - Google Patents

Abstract

The present invention relates to a method for adding a subsystem in an Asynchronous Transfer Mode (ATM) exchange.

In the past, when a subsystem was added to the ATM exchanger, a new processor loading data (PLD) for operating the entire ATM exchanger was required to be copied to the executable / initial data directory, and then the ATM exchanger system was restarted. There was a problem in that the ATM exchanger system was temporarily suspended at the time of additional implementation and lost all information acquired and stored during system operation. However, in the present invention, only the PLD of the newly added and implemented subsystem is newly created and executed in the workstation. By copying to the / initial data directory, the subsystem can be added while maintaining the information generated during operation without suspending the operation of the ATM exchange system.

Description

Method for Addition Subsystem in ATM Switching System

The present invention relates to an Asynchronous Transfer Mode (ATM) exchange. In particular, when a subsystem is added to an active ATM exchange, the subsystem is added to be mounted while maintaining the current processor loading data (PLD). A method for adding a subsystem at an ATM switch is provided.

In general, when a subsystem such as a processor board or a switch board is added to an active ATM exchanger, it is necessary to replace the PLD for operating the ATM exchanger in order to operate the corresponding subsystem normally.

Conventionally, when adding a new subsystem to an active ATM switch, the existing PLD is ignored and all PLDs of the entire system including the added subsystem are newly created, thereby creating a work station (W / S). You had to restart the ATM switch after loading it into the executable / initial data directory (/ tftpboot).

That is, in the conventional ATM exchanger, when a new subsystem is added and implemented during operation, the ATM exchanger must be temporarily stopped and the newly created PLD must be loaded and restarted in the executable / initial data directory (/ tftpboot). There is a problem that all the updated information is lost during the operation in the used PLD, and the communication service is interrupted because the system must be restarted.

The present invention has been made to solve the above-described problems, the object of which is to add a subsystem while maintaining the current PLD in the case of adding a subsystem to the operating ATM switch to be installed by adding ATM The present invention provides a method for adding a subsystem at an exchange.

1 is a diagram showing an apparatus for additional management of a subsystem in an ATM exchange according to the present invention;

2A to 2C are flowcharts for explaining a method for adding a subsystem in an exchange according to the present invention.

Explanation of symbols on the main parts of the drawings

11: HMI (Human Machine Interface)

12: System Configuration Management Function

13: Processor Manager in OMP Function

14: Switch Test Supervision Function

15: Database

A feature of the present invention for achieving the above object is, if a sub-system number of the added sub-system is input, checking whether the sub-system number corresponds to a sub-system already mounted in the ATM switch; If the subsystem number does not correspond to the unimplemented subsystem number, it reads the version information of the current package running in the system, and contains information on the newly added PLD in the workstation's executable / initial data directory. Copying the PLD information file to the package directory of the currently running version; Reading and storing the contents of the PLD information file and copying the PLD file of the processor to be mounted in the subsystem to be added from the workstation to the current package directory; Copying the relational information files between PLDs in another directory under the executable file / initial data directory of the workstation to a disk of the system under a new name; Creating information about a processor in the adding subsystem and transmitting the information to a processor state manager; Updating the ATM local switch IPC shape relation information in the database and updating the subsystem shape relation information; And transmitting the changed ATM local switch shape information to the switch state management unit, and changing and storing the relationship information between PLDs copied under the new name into an existing relationship information file name between PLDs.

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

As shown in FIG. 1, an apparatus for additional management of a subsystem in an ATM switch system according to the present invention includes a human machine interface (HMI) 11, a system configuration management function (12), and a processor state management unit (13). in OMP Function), Switch State Supervisory Function (14) and Database (15). The HMI 11 operates at the operating workstation and is responsible for the input of the subsystem addition commands and the output of the results between the operator and the system. The system shape management unit 12 manages the shape of the system to be changed according to a command applied from the HMI 11 when a sub system is added, and is in charge of overall processing for loading the PLD. In addition, the processor state manager 13 adds the processor to the system by using processor information mounted in the sub-system to be added from the system configuration manager 12. The switch state management unit 14 manages information related to the switch shape of the added subsystem, but stores and manages the ATM local switch shape information applied from the system shape management unit 12. Then, the database 15 performs copying and updating of the PLD for operating the added sub system under the control of the system shape management unit 12.

In case of adding a subsystem, the master processor is added in a mounted state, and further existing processors are added using a processor addition instruction. To add a subsystem, you must create a PLD to be loaded into the processor of the newly added subsystem, and you need a PLD information file (PLD_INFO), which is a text file containing information about the new PLD, and the corresponding PLD information file (PLD_INFO). Includes the rack number of the system being added, the shelf of the Main ATM Processor board Assembly (MAPA), the slot number, the shelf of the IPC cell Mux / Demux board Assembly (IMDA), the slot number, and the Switch and Link Control Unit (SLCU). It contains the shelf and slot numbers and must be copied to the executable / initial data directory (/ tftpboot) on the workstation where the HMI 11 is running before executing the add subsystem command. Also, all PLDs of the subsystem to be added must be copied to the workstation's executable / initial data directory (/ tftpboot) along with the PLD information file (PLD_INFO). However, only the PLD relationship information file (P_REP) in the PLD should be copied under the other directory (REP) under the executable / initial data directory (/ tftpboot). In the subsystem addition management apparatus of the present invention, the additional instruction of the subsystem can be executed in the state of being prepared as described above.

Referring to the flowcharts of FIGS. 2A to 2C, the operation process when the subsystem is added and mounted in the apparatus for managing additional subsystems in the ATM switch according to the present invention will be described below.

First, for the process of adding a subsystem, the subsystem number of the added subsystem is input to the HMI11 as a parameter (step S21). At this time, the system configuration management unit 12 checks whether the input subsystem number corresponds to the subsystem already installed in the ATM switch (step S22). When the subsystem number corresponds to the subsystem not mounted, If it is determined that the operation of reading the version information of the current package currently being operated on the system (step S23) is performed normally (step S24), the operation of the workstation where the HMI 11 operates is performed. Copy the PLD information file (PLD_INFO) containing information about the newly added PLD in the executable file / initial data directory (/ tftpboot) to the package directory of the current version of the hard disk (step S25). If it is determined that such a copy operation of the PLD information file PLD_INFO has been normally performed (step S26), the system configuration management unit 2 reads and analyzes the corresponding PLD information file PLD_INFO and stores the value. (Step S27), if it is determined that the operation of reading and storing the corresponding PLD information file (PLD_INFO) has been normally performed (Step S28), from the executable file / initial data directory of the workstation where the HMI 11 operates. Copy the processor-specific PLD file P_Cxx to be mounted in the subsystem to be added to the current package directory of the system hard disk (step S30).

If it is determined that the copy operation has been normally performed (step S31), the relationship information (P_REP) between PLDs stored in another directory (REP) under the execution file / initial data directory (/ tftpboot) of the workstation where the HMI 11 operates. ) Is copied to the current package directory of the system hard disk with a new name (P_REP.tmp) (step S32). When it is determined that the copy operation is normally performed (step S33), information about the processor in the newly added sub system [subsystem number, the number of processors, the physical slot number mounted, and the call connection control processor (CCCP) Including an index] (step S34), and transmits the created information to the processor state management unit 13 (step S35). Then, the processor state management unit 13 adds a new processor, and the processor state management unit 13 If it is determined that a new processor addition operation of the < RTI ID = 0.0 >) has been normally performed (step S36), < / RTI > updates the ATM local switch IPC (inter processor communication) shape relation information (R_ALS_IPC_CONF) in the database 15 (step S37). In step 15), the subsystem shape relation information R_SUB_CONF is updated (step S40).

If it is determined that the information update of the database 15 is successful (step S41), the changed ATM local switch shape information is transmitted to the switch state management unit 14 (step S42), and the current inter-PLD relationship information (P_REP). ) (Step S43), change the inter-PLD relationship information copied under the new name (P_REP.tmp) to the current inter-PLD relationship information (P_REP), and store it (step S44). After printing is output (step S45), the operation ends.

On the other hand, when it is determined in step S22 that the subsystem number is mounted, when it is determined that the operation of reading the current package is not normally performed in step S24, and in step S26, the PLD information (PLD_INFO) If it is determined that the copying operation is not performed normally, and if it is determined that the operation of reading the PLD information is not performed normally in step S28, after outputting a bad result indicating that the processing has been performed poorly ( Step S29) The operation ends.

When it is determined that the operation of copying the PLD relationship information P_REP to the new name P_REP.tmp has not been normally performed in step S33, the copied processor-specific PLD file P_Cxx is deleted (step S38). The operation is terminated after the output of the bad result indicating that the bad processing has been performed (step S39). In addition, if it is determined that the operation of copying the processor-specific PLD file P_Cxx has not been normally performed in step S31, and if it is determined that the operation of transmitting the information made in step S36 has not been normally performed, it is defective. The operation is terminated after printing the defective result indicating that the process has been processed (step S39). If it is determined in step S41 that the information update of the database 15 is unsuccessful, the operation is terminated after printing and outputting a bad result indicating that the processing is bad (step S46).

As described above, in the past, when a subsystem was added to the ATM exchanger and implemented, a new PLD for operating the entire ATM exchanger was required to be copied to the executable / initial data directory (/ tftpboot), and then the ATM exchanger system was restarted. When the sub-system was additionally mounted, there was a problem of suspending the operation of the ATM switching system and losing all the information acquired and stored during the operation of the system. However, in the present invention, a new PLD of the newly-installed sub-system is newly created. Copy to the executable / initial data directory (/ tftpboot), so the subsystem can be added while maintaining the information generated during operation without suspending the operation of the ATM switch system.

As described above, the present invention operates an ATM switch by additionally loading only the PLD of the added subsystem while maintaining the PLD currently in operation when the subsystem is added to the ATM switch in operation. The additional implementation does not have to suspend the operation of the ATM switch system and maintains the PLD information generated during the operation of the ATM switch system, making the operation of the ATM switch system very efficient.

Claims (1)

When the subsystem number of the added subsystem is input, checking whether the corresponding subsystem number corresponds to a subsystem already mounted in an ATM switch; If the subsystem number does not correspond to the unimplemented subsystem number, it reads the version information of the current package running in the system, and contains information on the newly added PLD in the workstation's executable / initial data directory. Copying the PLD information file to the package directory of the currently running version; Reading and storing the contents of the PLD information file and copying the PLD file of the processor to be mounted in the subsystem to be added from the workstation to the current package directory; Copying the relational information files between PLDs in another directory under the executable file / initial data directory of the workstation to a disk of the system under a new name; Creating information about a processor in the adding subsystem and transmitting the information to a processor state manager; Updating the ATM local switch IPC shape relation information in the database and updating the subsystem shape relation information; And transmitting the changed ATM local switch shape information to the switch state management unit, and storing the changed PLD relationship information copied to the new name into an existing PLD relationship information file name and storing the changed information. How to add a subsystem.