JPH01311627A - Line backup system - Google Patents

Abstract

PURPOSE:To set all lines as objects for backup by providing a terminal constitution managing part to set terminal constitution information dynamically on a line controller for backup. CONSTITUTION:A line constitution managing part 2 and a line constitution information part 3 are provided at a center device 1, and When a fault is generated, the line constitution information part 3 informs the terminal constitution information of the line targeted for backup in the line constitution managing part 2 dynamically to the terminal constitution managing part 8, and the terminal constitution managing part 8 embeds the terminal constitution information in the line controller 5 for backup. As a result, the line controller 5 for backup connects the line change-over switch 7 of the line targeted for backup to the line controller 5 for backup by a switched line network 9, then, performs the backup of the line. In such a way, all of the lines connecting the center device 1, the line controller 4, and line change-over switch 7 are set as the objects for backup, and influence on the line other than the line targeted for backup can be prevented from being given.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a line backup method, particularly to a line backup method in the event of a line between a terminal and a host computer and a line control device failure.

[Conventional technology]

There are two types of conventional line backup methods:
One method is to initialize the backup line control device when backing up a failed line, notify the line information to be backed up, and perform backup based on this information. Line configuration information is statically set in the control device, and in the event of a line failure, the line matching this set information is backed up.

[Problem to be solved by the invention]

Among the conventional methods described above, the backup line controller initialization method requires initialization of the backup line controller each time a faulty line is backed up to set line configuration information. There is a disadvantage that the previously connected line is disconnected each time you back up something, and fixed line methods can be backed up because the line configuration information is statically set in the backup line control device. The disadvantage is that the line is fixed.

[Means to solve the problem]

The method of the present invention is a line backup method in a wide area online system in which a center device and a plurality of terminals are connected via a line control device or a backup line control device, in which the center device manages terminal configuration information for each line. a line configuration management unit that dynamically notifies one of the backup line control devices of the corresponding terminal configuration information when a failure occurs in either the line control device itself or a line controlled by the line control device; The backup line control device is further provided with a terminal configuration management unit that sets the notified terminal configuration information in the backup line control device. A detour route is created using a line control device and public telephone line network.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention, in which a center device 1 and a plurality of terminals 8 are connected via a line control section 4 and a line changeover switch 7 via a specific line. 1
A plurality of line changeover switches 7 for one line control device 4
are provided, and each line changeover switch 7 switches and connects a plurality of terminals to the line control device 4.

The center device 1 and each terminal 8 also include a plurality of backup line control devices 5. Connection can also be made via the public telephone line 1119 and changeover switch 7.

A typical example of such a system is a banking system.

The center device 1 is provided with a line configuration management section 2 and a line configuration notification section 3.

The line configuration management section 2 manages line configuration information whose data format is shown in FIG. 2 for each line between the line control device 4 and the line changeover switch 7. In FIG. 2, the line connection address 11 stores the address at which the backup target line connects to the backup line control device 5. The number of terminals 12 represents the number of terminals connected to the line to be backed up, and 13 of terminals 1 to n represents storing the information of each terminal. The terminal information includes type 14, which indicates the type of terminal. A first address 15 and a second address 16 representing the storage location of data used in the system in the terminal are stored.

Now, if a failure occurs in the line connecting the center device 11, line control device 4, and line changeover switch 7, or in the line control device 4, that line becomes the line to be backed up, and the terminal of the line to be backed up in the line configuration management unit 2 The line configuration notification section 3 dynamically notifies the terminal configuration management section 6 of the configuration information.

The terminal configuration management section 6 embeds this terminal configuration information into the backup line control device 5. As a result, the backup line control device 5 connects the line changeover switch 7 of the line to be backed up and the backup line control device 5 via the public line network 9 to back up the line. in this case,
All lines connecting the center device 1, line control device 4, and line changeover switch 7 can be backed up.
Lines other than the line to be backed up are not affected during line backup processing.

〔Effect of the invention〕

As explained above, the present invention includes a line configuration management unit that manages terminal configuration information for each line and a line configuration notification unit that notifies backup target terminal configuration information to a backup line control device in the center device. In addition, since the backup line control device is equipped with a terminal configuration management section that dynamically sets the above terminal configuration information in the device, all lines can be backed up, and the backup line control device can be There is no need for initialization, and backup control can be performed without affecting previously backed up lines.

[Brief explanation of the drawing]

Fig. 1 is a system schematic diagram showing one embodiment of the present invention;
The figure is a data format diagram of terminal configuration information managed by the line configuration management section in FIG. 1. 1. Center device, 2. Line configuration management section, 3.
...Line configuration notification unit, 4...Line control device, 5...
Backup line control device, 6... terminal configuration management unit, 7... line changeover switch, 8... terminal, 9...
Public telephone network.

Claims (1)

[Scope of Claims] In a line backup method in a wide area online system in which a center device and a plurality of terminals are connected via a line control device or a backup line control device, the center device manages terminal configuration information for each line. a line configuration management unit that dynamically notifies one of the backup line control devices of the corresponding terminal configuration information when a failure occurs in either the line control device itself or a line controlled by the line control device; The backup line control device is further provided with a terminal configuration management unit that sets the notified terminal configuration information in the backup line control device, and the backup line control device is provided with a terminal configuration management unit that sets the notified terminal configuration information in the backup line control device. A line backup method that creates a detour using line control equipment and the public telephone line network.