JPH09319707A - System and method for selecting host computer and medium storing program for selecting host computer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a terminal equipment to communicate without being conscious of which host computer is to be connected. SOLUTION: A terminal 09 designates an address and an application program number for a host computer to request connection to an application program on the host computer. At the time of designating a representative address representing plural host computers as the address for this host computer, a communication processing part 06 in a communication processor 04 selects a host computer, and a host computer access part 05 in the communication processor 04 informs the host computer 01 selected by the communication processing part 06 of a connection request from the terminal 09.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a host computer selection system, a selection method, and a host computer, in which a terminal device selects and connects one of a plurality of host computers via a communication processing device. The present invention relates to a medium for storing a program for executing.

[0001]

2. Description of the Related Art In the prior art, the selection process of a host computer connected to a network was intended to perform communication without being aware of which host computer the terminal device is connected to.

For example, in Japanese Patent Laid-Open No. 63-70367, a correspondence table of application program names and host computers for managing which host computer the application program is operating is set on the communication control device. Describes a technique in which a communication control device automatically selects a host computer.

[0003]

However, in this conventional technique, since the correspondence between the application program and the host computer is fixed, the processing of the application program can be performed by a plurality of processes without being aware of the terminal device side. There is a problem that the host computer cannot perform distributed processing.

Further, since the host computer that operates is determined based on the identifier of the application program, there is a problem that the application programs performing the same processing must have different identifiers for each host computer.

An object of the present invention is to enable communication in a network system in which a plurality of terminal devices and a host computer are connected without being aware of which host computer the terminal device is connected to. It is in.

Another object of the present invention is to allow the processing of the application program to be distributed and processed by a plurality of host computers without the terminal device being aware of it.

Another object of the present invention is to allow application programs that perform the same processing to have the same identifier even on different host computers.

[0008]

A first host computer selection system of the present invention is a network system in which a communication processing device to which a plurality of host computers are connected and a terminal device are connected, wherein the communication processing device is The host computer is informed that a connection request from the terminal device for the application program executed on the host computer has been received.

According to a second host computer selection system of the present invention, in the first host computer selection system, the terminal device sets the address of the host computer and the number of the application program executed on the host computer. Request to connect to the application program, the communication processing device, to the host computer corresponding to the address specified by the terminal device,
The host computer notifies that the connection request to the application program is received from the terminal device, and the host computer notifies the application program that the connection request from the terminal device has been received. To do.

A third host computer selection system of the present invention is the second host computer selection system, wherein the communication processing device uniquely corresponds to the host computer, and the address of the host computer and the host computer A plurality of individual address management units for receiving a connection request from the terminal device for the application program that specifies the number of the application program to be executed, and the individual address management unit for the host computer. And a host computer access unit for notifying a connection request from the terminal device, wherein the host computer has received a connection request from the terminal device for the application program specified by the terminal device. Characterized by having a communication processing device access unit for notifying

According to a fourth host computer selection system of the present invention, in the third host computer selection system, the communication processing device further includes a plurality of the application programs and a plurality of the application programs capable of executing the application programs. A connection request from the terminal device to the application program in which a plurality of application program description files storing a set of host computer names of the host computer and a representative address of the plurality of host computers and the number of the application program to be executed are specified And a representative address management unit that receives a connection request from the terminal device received by the representative address management unit that specifies a representative address of the plurality of host computers. Based on the number of Communication for instructing the host computer access unit to notify the host computer of a connection request from the terminal device by searching for a file, determining one of the host computers capable of executing the application program And a processing unit.

A first host computer selection method of the present invention is a network system in which a communication processing device to which a plurality of host computers are connected and a terminal device are connected, wherein the communication processing device executes on the host computer. It is characterized by including the step of notifying the host computer that a connection request for the applied program from the terminal device has been received.

A second host computer selection method of the present invention is the first host computer selection method, wherein the terminal device sets the address of the host computer and the number of the application program executed on the host computer. Specifying and requesting a connection to the application program; and the communication processing device, to the host computer corresponding to the address specified by the terminal device, requesting a connection from the terminal device to the application program. Is notified, and the host computer notifies the application program that the connection request from the terminal device has been received.

A third host computer selection method of the present invention is the second book and computer selection method, wherein the communication processing device further includes a representative address of the plurality of host computers and a number of the application program to be executed. When a connection request for the specified application program is received from the terminal device, the number of the application program and the hosts of the plurality of host computers capable of executing the application program based on the number of the application program The application program description file that stores a plurality of combinations with computer names is searched, one host computer that can execute the application program is determined, and a connection request from the terminal device is issued to the host computer. It is characterized by including a step of notifying.

A first medium of the present invention is a network system in which a communication processing device to which a plurality of host computers are connected and a terminal device are connected, from the terminal device to an application program executed on the host computer. A program is stored that causes the communication processing device to perform a process of notifying the host computer that the connection request has been received.

According to a second medium of the present invention, in the first medium, the address of the host computer and the number of the application program executed on the host computer are designated to connect to the application program. The communication is performed by causing the terminal device to perform a requesting process and notifying a host computer corresponding to an address specified by the terminal device that a connection request to the application program from the terminal device has been received. A program is stored that causes the processing device to perform, and causes the host computer to perform a process of notifying the application program that the connection request from the terminal device has been received.

A third medium of the present invention is the second medium, further comprising a connection from the terminal device to the application program in which representative addresses of the plurality of host computers and numbers of the application program to be executed are designated. The application program storing a plurality of sets of the application program number and the host computer names of the plurality of host computers capable of executing the application program based on the application program number when a request is received. A program that causes the communication processing device to perform a process of searching a description file, determining one of the host computers capable of executing the application program, and notifying the host computer of a connection request from the terminal device Memorize

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to FIGS.

In the present invention, the application program number is used to identify the application program. Application programs that perform the same processing have the same application program number.

Referring to FIG. 1, the embodiment of the present invention comprises a plurality of host computers 01 and a communication processing device 0.
4 and a terminal 09.

The host computer 01 includes one or a plurality of application programs 02 that communicate with the terminal 09, and a communication processing device access unit 03 that realizes an interface with the communication processing device 04.

The communication processing device 04 represents a plurality of host computers, and a host computer access unit 05 that realizes an interface with the host computer, a communication processing unit 06 that receives an incoming call from a terminal and selects a host computer. A representative address management unit 07 that manages addresses and at least one individual address management unit 08 that manages addresses corresponding to individual host computers are included.

Referring to FIG. 2, the communication processing unit 06 of the communication processing device 04 includes an application program description file 10 in which application program numbers and host computer selection rules are described, addresses representative of a plurality of host computers, and individual addresses. An address description file 11 in which addresses corresponding to the host computer are described, and an application program management table 12 created based on information in these files
A host computer management table 13, an incoming call control unit 14 that receives an incoming call from a terminal and selects a host computer to be connected from the application program management table 12 and the host computer management table 13, and a host selected by the incoming call control unit 14. A data transmission / reception unit 15 for actual data transmission / reception between a computer and a terminal
And

Referring to FIG. 3, the application program description file 10 describes the application program number and at least one host computer name in the same line.

Referring to FIG. 4, the address description file 11 may have a line head c or an line i. When the line head c is described, an address representative of a plurality of host computers is written after the line head c. After that, the host computer name and the address name corresponding to the host computer are described.

The application program description file 10,
In the address description file 11, each element is separated by one or more blanks.

Next, the operation of the embodiment of the present invention will be described with reference to FIGS.

The terminal 09, via the communication processing device 04,
When it is desired to connect to the application program 02 on the host computer 01, a connection request is issued by designating the address of the connection destination host computer and the application program number (step A1, step B1).

At this time, if it is desired to connect to a specific host computer, the address corresponding to the individual host computer is designated as the address of the connection destination host computer (step A1), and a plurality of host computers are designated. To connect to an unspecified host computer, which is one of the above, an address representative of a plurality of host computers is specified as the address of the connection destination host computer (step B1).

When connecting to an unspecified host computer, the user needs to write the application program description file 1 in advance.
0 and the address description file 11 are created, and the communication processing unit 0
Start 6.

When the communication processing unit 06 is activated, it creates an application program management table 12 and a host computer management table 13 based on the contents of the application program description file 10 and the address description file 11.

When the address specified by the terminal 09 is an address corresponding to an individual host computer, the individual address management unit 08 of the communication processing device 04 accepts an incoming call from the terminal 09 and directly accesses the host computer access unit 0.
5 is notified of an incoming call from the terminal 09 (step A2).

When the designated address of the terminal 09 is an address representing a plurality of host computers, the representative address management unit 07 of the communication processing device 04 accepts the incoming call from the terminal 09 and the incoming call control unit of the communication processing unit 06. 14 is notified of an incoming call from the terminal 09 (step B2).

Upon receipt of the notification from the representative address management unit 07, the incoming call control unit 14 operates the application program management table 12
The host computer is selected based on the contents of the host computer management table 13 and the data transmission / reception unit 1
Notify 5

Upon receiving the notification from the incoming call control unit 14, the data transmission / reception unit 15 notifies the host computer access unit 05 of the incoming call from the terminal 09 (step B3).

The host computer access unit 05, which receives the incoming notification from the terminal 09 from the individual address management unit 08 or the data transmission / reception unit 15 of the communication processing unit 06, transmits to the communication processing unit access unit 03 of the host computer 01 to be connected. Notify the incoming call from the terminal 09 (step B
4).

The host computer 01 notified by the host computer access unit 05 of the communication processing device 04.
The communication processing device access unit 03 determines the application program to be notified based on the application program number designated by the terminal 09, and notifies the application program of the incoming call from the terminal 09 (step B5).

When the application program 02 receives the incoming call notification from the terminal 09 from the communication processing device access unit 03, the connection from the terminal 09 to the application program 02 is completed.

Next, an embodiment of the present invention will be described in detail with reference to FIGS.

In this embodiment, the application program numbers of the application programs A18 and A20 are 21, and the application program numbers of the application programs B19 and B21 are 23.

Further, an address representing the two host computers of the host computer A16 and the host computer B17 is 11.11.11.11, and an address corresponding to the host computer A16 is 22.22.22.
22 and the address corresponding to the host computer B17 is 33.33.33.33.

First, the case where the terminal 30 connects to a specific host computer will be described.

The terminal 30 receives data via the communication processing device 24.
To connect to the application program A18 on the host computer A16, the address 22.22.222.22 for the host computer A16 and the application program number 21
To issue a connection request (step A1).

An individual address management unit A28 which manages the address for the host computer A16 receives an incoming call from the terminal 30, and directly accesses the host computer access unit 2
5 is notified of an incoming call from the terminal 30 (step A2).

The host computer access unit 25, which has received the notification from the individual address management unit A28, notifies the communication processing device access unit 22 of the host computer A16 of the incoming call from the terminal 30 (step A3).

The communication processing device access unit 22 of the host computer A16 which has received the notification notifies the application program A18 of the incoming call from the terminal 30 by the application program number (step A4).

When the application program A18 receives the incoming notification from the terminal 30 from the communication processing device access unit 22, the connection from the terminal 30 to the application program A18 is completed.

As described above, when the terminal 30 connects to a specific host computer, the communication processing unit 26 is unnecessary.

The same applies when the terminal 30 connects to the host computer B17.

Next, the case where the terminal 30 connects to an unspecified host computer will be described. In this case,
The communication processing unit 26 is required.

The user selects the application program description file 1
0 is set as shown in FIG. 8 and the address description file 11 is set as shown in FIG. 9, and the communication processing unit 26 is activated.

In FIG. 8 and FIG. 9, HOST1 corresponds to the host computer A16, and HOST2 corresponds to the host computer B17.

The terminal 30 receives data via the communication processing device 24.
When connecting to either the application program A18 on the host computer A16 or the application program A20 on the host computer B17, the representative address 1
A connection request is issued by designating 1.11.11.11 and application program number 21 (step B1).

The representative address management unit 27 that manages the representative address receives the incoming call from the terminal 30 and notifies the communication processing unit 26 of the incoming call from the terminal 30 (step B).
2).

The communication processing unit 26, which has received the notification from the representative address management unit 27, selects the host computer based on the information of the application program description file 10 of FIG. 8 and the address description file 11 of FIG. Since 21 is designated as the program number, referring to FIG. 8, the host computers are HOST1 and HOST2, that is, host computer A16 and host computer B17.
Will be selected. Regarding this selection processing, various algorithms can be defined, such as always selecting a specific host computer, alternately selecting it, selecting a host computer with a light load, etc. However, this algorithm is not specified in this embodiment. Here, it is assumed that the host computer B17 is selected.

The communication processing unit 26 notifies the host computer access unit 25 of the request to connect to the selected host computer B17 (step B3).

The host computer access unit 25, which has received the notification from the communication processing unit 26, uses the host computer B1.
The communication processing device access unit 23 of No. 7 is notified of the incoming call from the terminal 30 (step B4).

The communication processing device access unit 23 of the host computer B17 which has received the notification notifies the application program A20 of the incoming call from the terminal 30 by the application program number (step B5).

When the application program A20 receives the incoming notification from the terminal 30 from the communication processing device access unit 23, the connection from the terminal 30 to the application program A20 is completed.

With the above, the processing of the host computer selection system according to the embodiment of the present invention is completed.

The host computer selection system according to one embodiment of the present invention is characterized in that the terminal specifies the host computer address and the application program number to connect to the application program on the host computer. When a representative address representing a plurality of host computers is designated as the host computer address, the terminal is connected to an arbitrary host computer.

[0061]

As described above, the host computer selection system, the selection method, and the medium for storing the program for selecting the host computer according to the present invention are used in a network system in which a plurality of terminal devices and a host computer are connected. The advantage is that communication can be performed without being aware of which host computer the terminal device is connected to.

Further, there is an effect that the processing of the application program can be distributed and processed by a plurality of host computers without the terminal device being aware of it.

Further, the application programs that perform the same processing have the effect that they can have the same identifier even on different host computers.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a host computer selection system of the present invention.

FIG. 2 is a block diagram showing details of a communication processing unit in the host computer selection system of the present invention.

FIG. 3 is a diagram showing a format of an application program definition file 10 in the host computer selection system of the present invention.

FIG. 4 is a diagram showing a format of an address definition file 11 in the host computer selection system of the present invention.

FIG. 5 is a flow chart of processing when a terminal connects to a specific host computer in the host computer selection system of the present invention.

FIG. 6 is a flow chart of processing when a terminal connects to an unspecified host computer in the host computer selection system of the present invention.

FIG. 7 is a block diagram showing a configuration of a host computer selection system which is an embodiment of the present invention.

FIG. 8 is a diagram showing a format of an application program definition file 10 in a host computer selection system which is an embodiment of the present invention.

FIG. 9 is an address definition file 11 in a host computer selection system which is an embodiment of the present invention.
It is a figure showing the format of.

[Explanation of symbols]

 01 host computer 02 application program 03 communication processing device access unit 04 communication processing device 05 host computer access unit 06 communication processing unit 07 representative address management unit 08 individual address management unit 09 terminal 10 application program description file 11 address description file 12 application Program management table 13 Host computer management table 14 Incoming call control unit 15 Data transmission / reception unit 16-17 Host computer 18-21 Application program 22-23 Communication processing device access unit 24 Communication processing device 25 Host computer access unit 26 Communication processing unit 27 Representative Address management unit 28-29 Individual address management unit 30 Terminal

Claims (10)

[Claims] 1. A network system in which a communication processing device to which a plurality of host computers are connected and a terminal device are connected to each other, wherein the communication processing device is provided from the terminal device to an application program executed on the host computer. A host computer selection system, which notifies the host computer that a connection request has been received. 2. The terminal device specifies the address of the host computer and the number of the application program executed on the host computer to request a connection to the application program, and the communication processing device , Notifying the host computer corresponding to the address specified by the terminal device that the connection request to the application program from the terminal device has been received, and the host computer notifies the application program of 2. The host computer selection system according to claim 1, further comprising notifying that a connection request from the terminal device has been received. 3. The terminal device for the application program, wherein the communication processing device uniquely corresponds to the host computer and specifies an address of the host computer and a number of the application program executed on the host computer. And a host computer access unit for notifying the host computer of the connection request from the terminal device received by the individual address management unit. The host computer, for the application program designated by the terminal device,
3. A communication processing device access unit for notifying that a connection request from the terminal device has been received.
The described host computer selection system. 4. The application program description file, wherein the communication processing device further stores a plurality of sets of a number of the application program and a host computer name of the plurality of host computers capable of executing the application program, A representative address management unit that receives a connection request from the terminal device for the application program that specifies representative addresses of a plurality of host computers and the number of the application program to be executed, and the representative address management unit that receives the representative address management unit. When the connection request from the terminal device designates the representative addresses of the plurality of host computers, the application program description file is searched based on the number of the similarly designated application program, and the application program is executed. Determine one said host computer that can Host computer selection system according to claim 3, comprising the host computer access unit and a communication processing unit that instructs to notify the connection request from the terminal apparatus to the host computer. 5. A network system in which a communication processing device to which a plurality of host computers are connected and a terminal device are connected to each other, wherein the communication processing device is provided from the terminal device to an application program executed on the host computer. A method of selecting a host computer, comprising the step of notifying the host computer that a connection request has been received. 6. The terminal device requests the connection to the application program by designating the address of the host computer and the number of the application program executed on the host computer, and the communication processing. A step of notifying a host computer corresponding to an address designated by the terminal device that a connection request from the terminal device to the application program has been received; The host computer selection method according to claim 5, further comprising the step of notifying that a connection request from the terminal device has been received. 7. When the communication processing device further receives a connection request from the terminal device for the application program specifying the representative addresses of the plurality of host computers and the number of the application program to be executed, On the basis of the application program number, the application program description file storing a plurality of sets of the application program number and the host computer names of the plurality of host computers capable of executing the application program is searched, and the application program description file is searched. 7. The host computer selection method according to claim 6, further comprising the step of determining one of the host computers capable of executing a program and notifying the host computer of a connection request from the terminal device. 8. In a network system in which a communication processing device to which a plurality of host computers are connected and a terminal device are connected, a connection request from the terminal device for an application program executed on the host computer is received. To
A medium that stores a program that causes the communication processing device to perform a process of notifying the host computer. 9. The address of the host computer and the number of the application program executed on the host computer are designated to cause the terminal device to perform a process of requesting a connection to the application program, The communication processing device is caused to perform a process of notifying the host computer corresponding to the address specified by the device that the connection request to the application program from the terminal device has been received, and the application program, The medium according to claim 8, which stores a program for causing the host computer to perform a process of notifying that a connection request from the terminal device has been received. 10. When the connection request from the terminal device for the application program specifying the representative addresses of the plurality of host computers and the number of the application program to be executed is received, the application program number is added. Searching for the application program description file storing a plurality of sets of the application program number and the host computer names of the plurality of host computers capable of executing the application program, and executing the application program. 10. The medium according to claim 9, which stores a program for determining one of the host computers capable of performing the above processing, and causing the communication processing device to perform a process of notifying the host computer of a connection request from the terminal device.