KR100407349B1 - Apparatus for transmitting files of switching system, and method therefor - Google Patents

Abstract

PURPOSE: An apparatus for transmitting files of a switching system, and a method therefor are provided to transmit files in real time by connecting a communication unit and a switching system through an external communication network. CONSTITUTION: A work station contacts with an EXIP(Ethernet and X.25 Interface Processor)(130) through a TCP/IP(Transmission Control Protocol/Internet Protocol) network to request to read filed of an OMP(Operation and Maintenance Processor)(110) or MMP(Man-Machine Processor)(120). The EXIP(130) transmits the request to the OMP(110) or MMP(120) through an IPCU(Inter Processor Communication Unit)(140). The EXIP(130) receives the files output from the OMP(110) or MMP(120) in an IPC message form through the IPCU(140). The EXIP(130) converts the files of IPC protocol into a TCP/IP protocol form to transmit the converted files to the corresponding work station.

Description

File transfer apparatus and method of exchange

The present invention relates to an apparatus and a method for transmitting a file of an exchange, and more particularly, to an apparatus and a method for transferring a file between a terminal and an exchange connected to an external communication network.

In order to transfer a file of an exchanger to another device, it has been common practice to store a file of the exchanger on a magnetic tape, and then transfer and transfer the magnetic tape. In other words, there was no way to send and receive files on the exchange at a remote location. As described above, when the file of the exchange was delivered, data could be lost or damaged while carrying the magnetic tape, and there was a problem that the file of the exchange could not be processed in real time according to the delay of the transport time.

As a method to solve the above problems, an exchange protocol processor is used that connects the exchange network with the external network in order to reliably transmit and receive the exchange file. When the remote device connected to the external communication network requires communication with the exchange, when the protocol processing device inside the exchange interfaces with the external communication network in the form of an exchange, the file of the exchange can be transmitted.

Accordingly, an object of the present invention is to provide a device having a protocol device, which is capable of transmitting a file in real time by connecting a communication device and a switch through an external communication network.

Another object of the present invention is that an exchange having a protocol device is connected to the communication network, and when receiving a file, the file received in the protocol form of the communication device connected to the communication network is converted into a protocol form of the exchange and stored, and the file of the exchange is stored in an external communication network. The present invention provides a method for converting and transmitting a protocol of a connected communication device.

In order to achieve the above object of the present invention, a data processor protocol method of an exchange processing a file of an exchange according to a file transfer protocol command generated from a remote spaced workstation connected to a TCP / IP network is provided. Analyzing the received file transfer protocol command and requesting file processing for the corresponding command, analyzing the file processing request, and converting it into an interprocessor communication message to access the file system of the analyzed file path. And a process of transmitting the file processing result according to the processing request in the file system, converting the file into a file transfer protocol, and transmitting the result of the file processing to the external communication network.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same parts in the figures represent the same reference signs wherever possible.

1 is a diagram showing a connection relationship between an exchange and a data communication protocol device according to an embodiment of the present invention.

Reference numeral 100 denotes an operating and maintenance switch subsystem in an electronic exchange. In the operation and maintenance switch subsystem 100, an operating & maintenance processor (OMP) 110 is a processor that manages the operation and maintenance of the subsystem 100. The peripheral device of the OMP110 includes a hard disk 111 and a magnetic tape 112 that store data for performing an operation and maintenance function.

Man-Machine Processor (MMP) 120 is a processor that is in charge of Man-Machine Communication (MMC) between the subsystem 110 and operations. The peripheral device of the MMP120 includes a personal computer (122) for performing an MMC function, a hard disk 121 for storing data generated during an MMC, and a printer 123 for printing a result of performing an MMC function. Equipped.

EXIP (Eithernet and X.25 Interface Processor) 130 is a data protocol processor that matches the protocols of the TCP / IP and X.25 specifications. The peripheral device of the EXIP130 includes a hard disk 131 for storing data transmitted / received when data is interfaced with an external TCP / IP network and an exchange period, and a module 132 that matches Ethernet and X.25 protocols. Equipped.

An inter processor communication unit (IPCU) 140 controls interprocessor communication between the processors OMP110, MMP120, and EXIP130.

Referring to FIG. 1, when a remotely located workstation connects to the EXIP130 via a TCP / IP network and requests reading of a file of OMP110 or MMP120, the EXIP130 may read the OMP110 or MMP120 through IPCU140. To pass on. The EXIP130 receives a file read and output by the OMP110 or MMP120 in the form of an IPC message through the IPCU140, converts the files of the IPC protocol into a TCP / IP protocol, and delivers the file to a corresponding workstation.

In addition, when the workstation wants to store a file in the exchange, the EXIP130 receives the file contents from the remote workstation through the TCP / IP network, and then converts the file in the TCP / IP protocol format to the file in the IPC protocol format. It is converted and output to IPCU140 and stored in the corresponding OMP110 or MMP120.

Regarding the directory of the OMP110 or MMP120, the directory of the processor is received by the IPC, converted into the TCP / IP, and transmitted to the remote workstation.

2 is a diagram illustrating a software block configuration of an exchange for transmitting and receiving files between an external TCP / IP network and an exchange.

Reference numeral 210 is an ftp user (file transfer protocol client), which is a block configuration of a workstation connected to an exchange through a TCP / IP network.

The UI 231 is a user interface unit that performs an interface function between a workstation user and a workstation. The UI 231 is responsible for inputting a command to a user and outputting a processing result. PI (Protocol Interpreter) 212 is responsible for the function of interpreting the user command generated through the UI211 to change the form to the EXIP130 can know and deliver. The DTP (Data Transfer Process) 213 is initiated by the PI212 when a user command is sending or receiving a file, and is responsible for sending and receiving a requested file.

Reference numeral 220 denotes a software block configuration of EXIP130, where PI221 and DTP222 become ftp server 225 (ftp server). PI221 of the ftp server 225 is responsible for executing a command received from PI212 of the ftp user 210. The DTP222 of the ftp server 225 performs an interface function for accessing the file system of the OMP110, MMP120, and EXIP130. The DTP222 uses a Virtual File Manager (VFM) 223 to access the file system of the processors 110-130. The VFM223 is a module that processes a virtual directory. The VFM223 is an interface that allows the DTP222 to view the file system of the DFM (Disk File Manager) 224 and the EXIP130 used to access the files of the OMP110 and the MMP120 from a single point of view. The DFM224 interoperates with the DFM231 of the OMP230 and the DFM241 of the MMP120 and the IPC to deliver files and directory related services of the OMP110 and the MMP120 to the VFM223.

Referring to FIG. 2, ftp (file transfer protocol) is a TCP / IP standard application protocol that provides a service related to file transfer using TCP / IP port number 21. First, the UI210 of the ftp user 210 inputs a command generated by the user and outputs it to PI212, and is responsible for outputting a processing result received through the PI212. The PI212 interprets the user command received from the UI211 and converts the command into a command that the ftp server 225 knows and transfers it to the PI221 of the ftp server 225. The DTP213 starts operation under the control of the PI212 when the user command interpreted by the PI212 is a command for transmitting and receiving a file, and transmits and receives a file with the DTP222 of the ftp server 225.

Then, the ftp server 225 connected to the ftp210 and performing the user command and file transmission / reception function performs the same function as in FIG. 3 while analyzing the input user command and performing a corresponding function.

Looking at the operation of the ftp server 225 with reference to FIG. 3, when the access request is generated from the port 21 of TCP / IP from the ftp user 210, the ftp server 225 accepts the access request in step 311. In step 313, the user command is received through the PI221. After that, the received user's command is analyzed. If the command is required to change the directory ("CD" command), perform steps 315 and 317 to request the VFM223 to change the directory, and then transmit the result through PI225 in step 335. do. In addition, if a command ("dir", "1s") requesting the contents of the directory is performed, steps 319 and 321 are performed to request the contents of the directory to the VFM223. In step 335, the execution result is transmitted through the PI225. If it is a command to request file reading ("get" command), perform the steps 323 and 325 to open the DTP222, request the VFM223 to read the file, and read the file through the VFM223 to remotely open the DTP222. Deliver to the workstation. In operation 335, the result of reading the file is transmitted through the PI225. If it is a command to request file writing (“put” command), perform the steps 327 and 329 to open the DTP222, request the VFM223 to write the file, and then write the file received through the opened DTP222 to the VFM223. do. In operation 335, the result of writing the file is transmitted through the PI225. If it is a disconnection command (“bye” command), the ftp server 225 detects it in step 331 and terminates after releasing the TCP / IP connection.

As described above, the ftp server 225 analyzes the command received by the PI221, and if the file read command is executed, the DTP222 is opened and the file is read through the VFM223 and transmitted to the remote station through the opened DTP222. In addition, even when the received command is a file write command, the DTP222 is opened, whereas the file contents received through the opened DTP222 are written through the VFM223.

The VFM223 is a module for processing a virtual directory, and the interface allows the DTP222 to access files of the file system of the DFM and EXIP130 used for file access of the OMP110 and MMP120. 4 is a flowchart illustrating a process of processing a virtual directory in the VFM223.

Referring to FIG. 4, in step 411, the VFM223 receives and analyzes processing request information. In this case, if the requested path is a virtual directory, the request is processed on the virtual directory in steps 413 and 415, and then the process is output to the ftp server 225 in step 423. If the requested path is the disk of the EXIP130, the process 417 and 419 are performed to access the disk 131 of the EXIP130, and the processing result is transmitted in step 423. FIG. If the required path is OMP110 or MMP120, the VFM223 forwards the processing requirement to the DFM224 in step 421 and the processing result in step 423.

As mentioned above, the VFM130 handles file related requests by the ftp server 225 and manages its own virtual directory. The directory path shown in the virtual directory structure is handled by VFM223 itself, and the lower file path processes EXIP130 file system if the processor name is EXIP130, and OMP110 in conjunction with DFM231 or 241 of the corresponding processor if OMP110 or MMP120 is used. Or the file system of the MMP120.

If the requirement transmitted from the VFM223 is a file system of OMP110 or MMP120, the DFM224 interworks with the DFM231 or 241 using an IPC. 5 is a flowchart illustrating a process of delivering the IPC in conjunction with the OMP110 and MMP120 by the DFM224.

Referring to FIG. 5, if the disk requested from the VFM223 is an OMP110 disk, the DFM223 requests the corresponding requirements to the DFM231 of the OMP110 by performing steps 511 and 513. Deliver to the VFM223. If the disc requested from the VFM223 is a disc of the MMP120, steps 515 and 517 are performed to request processing of the corresponding requirement from the DFM241 of the MMP120, and the process is transferred to the VFM223 in step 521.

As described above, when the DFM224 of the EXIP130 receives a request for reading a directory, writing a file, removing a file, or moving a file from the VFM223, the DFM224 analyzes the request by which processor and then sends a request to the DFM of the corresponding processor. To request processing, and receives the processed result and delivers the result to the VFM223.

As described above, a remote user connected to a TCP / IP network can transmit and receive an exchange file in real time using ftp. In addition, when an exchange software programmer tests a program to be tested, the test file may be transmitted by ftp from its own terminal remotely connected to the TCP / IP network and then tested and received.

1 is a diagram illustrating a configuration of an exchange for transferring files between an exchange and an external communication network according to an embodiment of the present invention.

2 illustrates a software block for file transfer of an exchange in accordance with an embodiment of the present invention.

3 is a flowchart showing the operation of the ftp server among the software blocks of the EXIP in FIG.

FIG. 4 is a flowchart showing the operation of the VFM among the software blocks of the EXIP in FIG.

5 is a flowchart showing the operation of the DFM among the software blocks of the EXIP in FIG.

Claims (3)

In the operation and maintenance switch subsystem device for communicating a file between a switch and a device connected to an external communication network, It is connected to the external communication network, analyzes the command received through the external communication network, generates an interprocessor communication message for accessing the file of the corresponding module according to the analyzed command, and generates an interprocessor communication message according to the processing result A data protocol processor for changing and outputting the protocol form of an external communication network; An operation and maintenance processor that oversees operation and maintenance of the operation and maintenance switch subsystem, and processes a function according to an interprocessor communication message received from the unit and transfers the processing result to the unit; It is responsible for the communication function between the operation and maintenance switch subsystem and the operator, and the operation and maintenance processor for processing the function according to the inter-processor communication message received from the unit and transfer the processing result to the unit, The data protocol processor analyzes a command required by a remotely spaced device, accesses files of the processors, transmits them to the external communication network, or stores files received from the external communication network in the processors. And preservation switch subsystem device. In a data processor protocol method of an exchange processing a file of an exchange according to a file transfer protocol command generated from a remotely spaced workstation connected to a TCP / IP network, Analyzing a file transfer protocol command received from the external communication network and requesting file processing for a corresponding command; Analyzing the file processing request, converting the file processing message into an interprocessor communication message so as to access the file system of the analyzed file path, and transmitting the converted message to the file system; And receiving the file processing result according to the processing request from the file system in the form of an inter-processor communication message, converting the file into a file transfer protocol, and transmitting the result to the external communication network. 3. The protocol processing method of claim 2, wherein the file transfer protocol command is a file directory change, a file directory read, a file read, a file write, a file delete, a file move, or the like.