KR100197444B1 - Method for transmitting file in full electronic switching system - Google Patents

Abstract

The present invention relates to a file transfer method in an all-electronic exchange suitable for efficient transmission and reception of data between internal auxiliary storages of an all-electronic exchange. In the prior art, data transmission and reception between auxiliary storages in all-electronic exchanges is performed. While the problem of changing the contents of a specific file has been continuously generated in the process, in the present invention, important data generated at the electronic switchboard may be generated on the proxy transmission from the DKU 90 to the MTU 100 or the CTU 80. The above-mentioned drawbacks can be ameliorated by eliminating errors.

Description

File transfer method in electronic exchange

1 is a block diagram showing an embodiment of an electronic switch in which a file transfer method can be applied in the electronic switch according to the present invention.

2 is a flowchart showing step by step an embodiment of a file transfer method in an electronic switch according to the present invention.

* Explanation of symbols for main parts of the drawings

10, 20: first, n-th MP 30, 40: first, n-th PP

50: interprocessor communication fabric 60: maintenance processor

70: input / output control processor 80: CTU

90: DKU 100: MTU

110: PC 120, 130: 1st, nth CRT

The present invention relates to a file transfer method in an all-electronic exchange, and more particularly, to a file transfer method in an all-electronic exchange suitable for efficient data transmission and reception between internal auxiliary storage devices of the all-electronic exchange.

In this regard, in the electronic switch according to the prior art, the auxiliary storage device stores / manages a software package to be used in the system and stores / stores important data such as billing and backup generated in the electronic switch. It has been used as a tool for.

However, in the related art, there has been a problem that the contents of a specific file are changed due to its own noise component or external factors in the process of data transmission and reception between the auxiliary storage devices in the electronic switching center.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and provides a file transfer method in an all-electronic exchange that can ensure the reliability of data during the data transmission and reception process between the auxiliary storage device in the all-electronic exchange. The purpose is.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention for achieving the above object is as follows.

Referring to FIG. 1, FIG. 1 is a block diagram illustrating an embodiment of an electronic switching system to which a file transfer method can be applied in the electronic switching system according to the present invention. Main Procees (MPs) 10 and 20 communicate with the maintenance processor 60 through the interprocessor communication fabric 50, and a plurality of first and nth Ps P3 and 40 which are lower processors communicate with each other. Communicate with the input / output control processor 70 via the fabric 50.

Referring to Figure 2 of the present invention made as described above is as follows.

First, the CTU 80, the DKU 90 and the MTU 100 are basically connected to the maintenance processor 60, and data transmission and reception between each CTU 80, the DKU 90 and the MTU 100 is performed. All must be managed by the maintenance processor (60).

In addition, a personal computer (PC) 110 and a plurality of first and n-th CTUs 120 and 130 display specific contents under the control of the input / output control processor 70 under the input / output control processor 70.

2 is a flowchart illustrating a step-by-step embodiment of a file transfer method in an electronic switch according to the present invention, and illustrates a process of transmitting a corresponding file from the DKU 90 to the MTU 100 or the CTU 80. .

First, when BKUP is requested by the operator's request, the checksum value is classified and stored in a specific area of the corresponding file in the disk, and the corresponding file is opened in the DKU 90. If it is not opened or the head information is determined to be abnormal, an error message is output and the function ends (200, 210).

On the contrary, if it is determined that the file is normally opened in step 200, the head of the corresponding file in the disk is read to store the checksum value and open the MTU 100 to be received (220).

Next, if the MTU 100 is not normally open, an error message is output and the function is terminated. If the MTU 100 is normally open, the contents of the disk are read in 54kbyte units, and if it is not a normal read, an error message is output and the function is terminated. (230, 240, 250, 260, 270).

In the above-described step 260, if the normal read, the checksum value is calculated and written to the MTU 100 by 64 kbytes, and if it is not the normal write, an error message is output and the function is terminated. (280, 290, 300, 310).

On the other hand, after reading / writing the file to the end, the checksum value and the calculated checksum value contained in the head file of the disk are calculated to check whether the read data in the disk is normal. If the error is normal, the BKUP function is simply terminated. The file contained in the MTU 100 outputs an error message to inform the error details and terminates the function (320, 330).

In the present invention, since there is no confirmation of actual data in the data transmission / reception process between the internal auxiliary storage devices of the electronic switchboard, after performing data transmission / reception between the auxiliary storage devices, data transmission and reception between the auxiliary storage devices continues due to different problems. It is suitable for the field of electronic switchgear that uses each auxiliary storage device to secure data reliability by adding check sum function of the file in the process.

As described above, the present invention is capable of eliminating errors that may occur on proxy transmission from the DKU 90 to the MTU 100 or the CTU 80 by generating important data generated at the electronic switchboard.

Claims (1)

When the BKUP is requested by the operator, the checksum value is recorded in a specific file inside the disk, and the corresponding file is opened in the DKU 90. At this time, an error message is outputted when it is determined that the information is not normal or the head information is abnormal. Terminating steps (200, 210); If it is determined in step 200 that the file is normally open, a step of opening a DKU 90 for storing a checksum value by reading the head of the corresponding file in the disk and receiving the checksum value; If the MTU 100 is not normally open, an error message is output and the function is terminated. If the MTU 100 is normally open, the contents of the disk are read in 64kbyte units, and if not, the error message is output and the function is terminated. (230, 240, 250, 260, 270); In the step 260, if the normal read is calculated, the checksum value is calculated and written to the MTU 100 by 64 kbytes, and if it is not a normal write, an error message is output and the function is terminated. 290, 300, 310; After reading / writing the file to the end, check the checksum value and the calculated checksum value included in the head file of the disk to check whether the read data in the disk is normal.If it is normal, just terminate the BKUP function and if it is abnormal, send the MTU ( A file transfer method in an electronic switchgear comprising steps (320, 330) of outputting a message indicating that a file included in 100) indicates an error and terminating a function.