KR100208246B1 - 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 MTU 100 or the CTU 80 to the DKU 90. 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 the file transfer method from MTU or CTU to DKU in the electronic switch according to the present invention can be applied.

Figure 2 is a flow chart showing step by step an embodiment of a file transfer method from the MTU or CTU to the DKU in the electronic switch according to the present invention.

* Explanation of symbols for main parts of the drawings

10,20: first, second n MP 30,40: first, second n 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 from an MTU or a CTU to a DKU in an electronic switchgear, and more particularly, an MTU or an MTE or an electronic switchge suitable for efficiently transmitting and receiving data between internal auxiliary storage devices of the electronic switchgear. File transfer method from CTU to DKU.

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.

SUMMARY OF THE INVENTION 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 interrogator capable of ensuring the reliability of data in the process of data transmission and reception between auxiliary storage devices in the all-electronic exchange. Its purpose is to.

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 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. The main processors (MPs) 10 and 20 communicate with the maintenance processor 60 through the interprocessor communication fabric 50, and the plurality of first and nth PPs 30 and 40, which are lower processors, communicate with each other. Communicate with the input / output control processor 70 via the fabric 50.

The present invention thus made will be described with reference to FIG.

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 PC (Personal Computer) 110 and a plurality of first and nth CRTs (Cathode Ray Tubes) 120 and 130 are connected to the I / O control processor 70 so that an operator can operate the PC 110 to perform desired functions. Is applied to the input / output control processor 70, and the plurality of first and n-th CRTs 120 and 130 display specific contents under the control of 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 shows a process of transmitting a corresponding file to a DKU 90 in an MTU 100 or a CTU 80. .

First, when a DUMP is requested by an operator request, the corresponding file is opened in the MTU 100. At this time, if it is not normal open or information of the head is abnormal, an error message is output and the function is terminated (200, 210).

On the contrary, if it is determined that the file is normally opened in the above-described step 200, the head of the corresponding file in the disk is read 512 bytes to store the checksum value and open the DKU 90 to be received (220).

Next, if the DKU (90) is not normally open, an error message is output and the function ends. If the DKU (90) is normally open, the contents of the disk are read in 64Kbyte units. (230, 240, 250, 260, 270).

In the above-described step 260, if the normal read, the checksum value is calculated and written to the DKU 90 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 DKU 90 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 of the internal auxiliary storage devices in all electronic switchboards, after performing data transmission / reception between the auxiliary storage devices, data transmission / reception between the auxiliary storage devices is continued due to different problems. In the process, it adds a check sum function of the corresponding file, which is suitable for the field of the electronic exchange where each auxiliary memory device is connected and used to ensure the reliability of the data.

As described above, the present invention can eliminate an error that may occur on the proxy transmission from the MTU 100 or the CTU 80 to the DKU 90 as important data generated in the electronic switchboard.

Claims (1)

If the BKUP is requested by the operator request, the corresponding file is opened in the MTU 100, and at this time, if it is determined that the information of the head is not normal or the head is abnormal, outputting an error message and terminating the function (200, 210); If it is determined in step 200 that the file is normally open, a step of opening the DKU 90 to store the checksum value by reading 512 bytes of the head of the corresponding file in the disk; If the DKU (90) is not normally open, an error message is output and the function is terminated. If the DKU (90) is normally open, the contents of the disk are read in 64Kbyte units. (230,240,250,260,270); In the step 260, if the normal read is calculated, the checksum value is calculated and written to the DKU 90 by 64 Kbytes, and if it is not the normal light, an error message is output and the function is terminated. Wow; After reading / writing the file to the end, check the checksum value and the calculated checksum value contained in the head file of the disc to check whether the read data inside the disc is normal. A file transfer method in an electronic switchgear comprising a step (320, 330) of outputting a message indicating that a file contained in the file (90) is an error, informing an error matter, and terminating a function.