JPH0465745A - Multihost control system - Google Patents

Abstract

PURPOSE:To make it possible to execute various operations for plural host processors from the same terminal by previously forming logical channels and controlling the transmission/reception of telegrams by a telegram distributing mechanism included in a terminal control device. CONSTITUTION:The logical channels 6-1 to 6-n are previously formed between the terminal control device 2 and the host processors 5-1 to 5-n. On the other hand, a logical channel 6-T is previously formed on a communication medium 7-T between the device and a terminal 1. In the device 2, the telegram distributing mechanism 3 retrieves the identification(ID) number of the logical channel 6-i for the host processor 5-i to be processed by using the document number received from the terminal 1 by the terminal controller 2 and executes communication with the host processor 5-i through the channel 6-i by the identification number. Consequently, various operations corresponding to plural host processors are processed from the same terminal.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a multi-host control method, and particularly relates to a multi-host control method for an online network system in which a plurality of host processors that perform processing, terminal control devices, and terminals are connected. .

[Conventional technology]

Conventional multi-host control methods for online network systems that connect multiple host processors that perform processing, terminal control devices, and terminals have different host processors that perform processing for each task. For this purpose, a method was used in which a logical communication path was created or disconnected each time a terminal was assigned or a different service, that is, a different host processor was used.

[Problem to be solved by the invention]

The conventional multi-host control method described above has the disadvantage that when allocating terminals to each business, it is necessary to set up a business processing window for each business, which increases the number of installed terminals and the number of windows. .

Furthermore, when creating or disconnecting a logical communication path for each transaction, there is a drawback that the processing time required for each transaction becomes long. In particular, in cases such as online banking systems, where accounting operations, information operations, foreign exchange operations, etc. are processed by different host processors, the conventional multi-host control method requires Processing time will be longer, so
Business services will deteriorate, which will have a major impact.

An object of the present invention is to enable a terminal control device to generate a logical communication path with each of a plurality of host processors in advance, and to control transmission and reception of messages to the plurality of host processors using a mechanism for distributing messages within the terminal control device. An object of the present invention is to provide a multi-host control method that can process various tasks for a plurality of host processors from the same terminal.

[Means to solve the problem]

The multi-host control system of the first invention includes a plurality of host processors that perform processing, a terminal control device connected to the plurality of host processors via a communication medium such as a line, and a communication medium connected to the terminal control device. (A) A multi-host control method for an online network system comprising terminals connected through , (B) For the message distribution of the terminal control device, the mechanism has in advance a correspondence relationship between the form number uniquely assigned to each business and the logical communication path numbers of the plurality of connected host processors. (C) Using the form number received from the terminal in the terminal control device, the message distribution mechanism searches for the logical channel number of the host processor to be processed; (D) The logical channel number of the search result is used to communicate with the host processor to be processed.

Further, the multi-host control method of the second invention includes (A) a plurality of host processors, each of which is connected to a communication medium such as a line, and which performs requested processing via those communication media; (B) connection. (C) A terminal that requests processing by sending a message containing a form number uniquely assigned to each business via a communication medium assigned to the host processor; , and the message distribution stored in advance in the mechanism has a correspondence relationship between the form number uniquely assigned to each business and the logical communication path numbers of the plurality of connected host processors, At the start of online processing, by creating a logical communication path with a plurality of host processors, each time a message including a form number is received from the terminal, the mechanism distributes the message to the received form. Terminal control that uses the number to search for a logical channel number of the host processor to be processed, and uses the logical channel number as a search result to communicate with the host processor to be processed. It consists of a device.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the multi-host control system of the present invention.

The online network system shown in FIG. 1 includes host processors 5-1.・・・・・・・・・5
-n, and the host processor 5-1.・・・・・・・・・
5-n, each pre-processing device 4-1.・・・・・・
...4-n, and a preprocessing device 4-1.・・・・・・・・・
...4-n and the communication medium 7-1.・・・・・・・・・7-
It has a terminal control device 2 connected to the terminal control device 2 via a communication medium 7-T, and a terminal 1 connected to the terminal control device 2 via a communication medium 7-T.

In addition, the mechanism 3 uses the form number uniquely assigned to each task and the connected host processor 5-1 to allocate messages to the terminal control device 2. ......5-n logical communication path 6-1. . . . The correspondence with the identification number 6-n is stored in advance.

Then, at the start of online processing, the terminal control device 2 and the host processor 5-1. . . . 5-n, a logical communication path 6-1.・・・・・・
...6-n is generated.

On the other hand, between the terminal control device 2 and the terminal 1, the communication medium 7
-T, a logical communication path 6-T is generated in advance.

Therefore, using the form number received from the terminal 1 by the terminal control device 2, the mechanism 3 searches for the identification number of the logical communication path 6-3 of the host processor 5-i to be processed. , the logical communication path 8-i is determined by the identification number of the search result.
is used to communicate with the target host processor 5-i.

FIG. 2 is an information configuration diagram showing an example of the form number and logical communication path identification number held by the organization 3 for message distribution in this embodiment.

For message distribution, mechanism 3 uses form number 3 as shown in Figure 2.
−1, the identification number 3 of each logical communication path.
-2 is held.

FIG. 3 is a flowchart showing an example of the operation of the message distribution mechanism 3 of this embodiment.

As shown in FIG. 3, first, in step f-1, the message received by the terminal control device 2 is transferred to the mechanism 3 for message distribution.

Therefore, in step f-2, the mechanism 3 compares the form number in the message with the internally held form number 3-1, and if it is undefined, in step f-3, the terminal 1 sends an error message indicating that the message cannot be sorted.

On the other hand, if it has been defined in step f-2, the identification number 3-2 of the logical communication path corresponding to the form number in the message is searched in step f-4.

Then, in step f-5, the message is sent to the host processor for processing using the logical communication path of the identification number of the search result.

In addition, in this embodiment, when a business is added or abolished, message distribution is done by correcting the correspondence between the report number 3-1 of the mechanism 3 and the identification number 3-2 of the logical communication path. , it is possible to immediately control the sending and receiving side of the message.

Further, the tasks to be processed by each host processor in this embodiment do not need to be located in a specific host processor (they can be moved to a light-loaded host processor at any time for execution).

〔Effect of the invention〕

As explained above, in the multi-host control method of the present invention, a terminal control device generates a logical communication path with each of a plurality of host processors in advance, and controls the transmission and reception of messages to and from the plurality of host processors. By controlling message distribution within the device using a mechanism, it has the effect that various tasks for multiple host processors can be processed from the same terminal.

Furthermore, since the multi-host control method of the present invention does not create or disconnect logical communication paths for each transaction, the processing time required for each transaction can be shortened, and various operations can be handled by multiple host processors. Since processing can be performed from the same terminal, it has the effect of reducing the burden on the operator.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the multi-host control method of the present invention, and FIG. 2 is an example of the message distribution in this embodiment using the form number held by the mechanism 3 and the identification number of the logical communication path. Figure 3 is an information configuration diagram showing the message distribution in this embodiment.
3 is a flowchart showing an example of the operation. 1...Terminal, 2...Terminal control device, 3
・・・・・・Telegram distribution is done by the organization, 3-1・・・・・・Form number, 3-2-・・・Logical communication path identification number, 4
-1. ~4-n... Pre-processing device, 5-1. ~
5-n...Host processor, 6-1. ~6-
n, 6-T...Logical communication path, 7-1. ~7
no 7 T... Communication medium.

Claims (1)

[Scope of Claims] 1. A plurality of host processors that perform processing, a terminal control device connected to the plurality of host processors via a communication medium such as a line, and a terminal control device connected to the terminal control device via a communication medium. In a multi-host control method for an online network system having a terminal, (A) at the start of online processing, a logical communication path is generated in advance between the terminal control device and the plurality of host processors; (B) Having the message distribution mechanism of the terminal control device maintain in advance the correspondence between the form number uniquely assigned to each business and the logical communication path numbers of the plurality of connected host processors; C) Using the form number received from the terminal by the terminal control device, the message distribution mechanism searches for the logical channel number of the host processor to be processed; A multi-host control system, characterized in that communication is performed with the host processor to be processed using a communication path number. 2. (A) a plurality of host processors, each connected to a communication medium such as a line, and performing the required processing via those communication media; (B) uniquely, via the connected communication medium; A terminal that sends a message containing a form number assigned to each task and requests processing; (C) A message distribution mechanism that is connected to the plurality of host processors and the terminal via a communication medium and has a message distribution mechanism installed therein in advance. In addition to having a correspondence relationship between the form number uniquely assigned to each task and the logical communication path numbers of the plurality of connected host processors, at the start of online processing, the correspondence with the plurality of host processors is maintained. By creating a logical communication path between the terminals, each time a message including a form number is received from the terminal, the message distribution mechanism uses the received form number to connect to the logic of the host processor to perform processing. 1. A multi-host control system, comprising: a terminal control device that searches for a logical channel number and uses the logical channel number of the search result to communicate with the host processor to be processed.