JPH02282850A - On-line information processor - Google Patents

Abstract

PURPOSE:To process plural differing communication rules with a single subscriber circuit by describing a host communication rule into the user data of a calling packet to send them to a main information processor and deciding the software that processes the higher communication rule. CONSTITUTION:The communication rule entry means 161 and 162 write the identifiers of communication rules used by the slave information processors 101 and 102 themselves into the user data of a calling packet when the start of the transfer of data is desired to both processors 101 and 102. A communication rule deciding means 160 decides the communication rule identifiers written into the user data of an incoming packet in an incoming state of a main information processor 100 and then decides the communication rules used by a host application program to send them to the communication rule control means 131 and 132. A packet exchange network control means 170 contains a communication rule deciding table 150 which decides a specific communication rule processing means that processes the communication rule stored in the received data packet. Thus it is possible to process plural differing communication rules with a single subscriber circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is suitable for use in an online system using a packet switching network. The present invention relates to a device that determines a communication protocol to be used in an upper layer of packet switching when a packet call arrives.

〔overview〕

The present invention provides an online information processing device in which a plurality of information processing devices are connected via a packet switching network and transfers data using a higher-level communication protocol, in which the higher-level communication protocol is added to the user data of a calling packet. This allows one subscriber line to process a plurality of different communication rules by transmitting the information to the main information processing device and determining the software that will process the higher-level communication rules.

[Conventional technology]

Conventionally, in an online system that uses a packet-switched network, when multiple different communication protocols are used in the upper layer of the packet-switched network, a subscriber line to the packet-switched network is required for each different communication protocol, and the subscriber line and Upper layer communication rules were fixed.

[Problem that the invention seeks to solve]

The above-mentioned conventional method for determining upper layer communication protocols is fixed to subscriber lines of packet-switched networks, which has the disadvantage of requiring subscriber lines for each communication protocol when multiple different communication protocols are used. .

SUMMARY OF THE INVENTION The present invention aims to eliminate such drawbacks and to provide a device that does not require a subscriber line for each communication protocol and can process a plurality of different communication protocols using one subscriber line.

[Means for Solving the Problems] The present invention provides a main information processing system that includes a plurality of communication protocol control means respectively corresponding to a plurality of communication protocol control means, and an application program means for executing data communication according to the communication protocol control means. The main information processing device is connected to a plurality of slave information processing devices each including a communication protocol control means and an application program means via a packet switching network and a subscriber line, and the application program of the main information processing device is In an online information processing device in which the means performs data transfer with the application program means of one of the slave information processing devices, the slave information processing device is provided with a communication protocol to be used by the slave information processing device when it wants to start data transfer. Each includes a communication agreement entry means for writing an identifier into the user data of the calling packet, and the communication agreement identifier written in the user data of the incoming call packet is set in advance in the main information processing device at the time of an incoming call. Determine by referring to the rules determination table,
The communication protocol determining means is characterized in that it includes communication protocol determining means for determining a communication protocol used by the upper application program and transmitting the determined communication protocol to the slave communication protocol control means.

[Effect]

The communication contract entry means of the information processing device that is going to transfer data writes the identifier of the communication contract to be used in the user data of the calling packet, and the communication contract determination device of the information processing device that receives the data transfer determines the communication contract. Based on the table, the communication protocol identifier written in the user data of the incoming call packet is determined at the time of an incoming call, the communication protocol used by the application program means is determined, control is passed to the communication protocol control means, and the communication protocol control means Process the determined communication agreement.

In this way, when using multiple different upper communication rules, by storing the upper communication rules in the user data of the calling packet and determining the software that processes the upper communication rules, multiple communication rules can be used on one subscriber line. can handle different communication protocols.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

The embodiment of the present invention includes a plurality of communication protocol control means 131 and 132 respectively corresponding to a plurality of communication protocols, an application program means 140 that executes data communication according to the communication protocol control means 131 and 132, and a packet switching network control means. 170, a packet switching network 120 and subscriber lines 110.111.112.
This main information processing device 100 is connected to communication protocol control means 133, 134 and application program means 1 via
41.142 and packet switching network control means 171.1
Further, as a feature of the present invention, the slave information processing devices 101 and 102 are connected to a plurality of slave information processing devices 101 and 102, each including a Communication protocol entry means 1 for entering an identifier into user data of a calling packet
61 and 162, respectively, the main information processing device 10
0, communication protocol determining means for determining the communication protocol identifier written in the user data of the incoming call packet at the time of an incoming call, determining the communication protocol to be used by the upper application program, and transmitting the determined communication protocol to the communication protocol control means 131 and 132; 160, in which a communication protocol identifier used by the communication protocol determining means 160 in the logical channel is stored, and a packet switching network control means 170
A communication protocol determination table 150 is provided for determining which communication protocol processing means is to be used to process the communication protocol stored in the data packet received by.

FIG. 2 is a diagram showing the format of a packet frame according to an embodiment of the present invention. This format shows an example of the structure of a calling packet generated by the slave information processing devices 101 and 102 and an incoming call packet received by the main information processing device 100, including a logical channel number field 201, a command field 202, a subscriber number field 203;
It is composed of a user data length field 204 and a user data field 205.

FIG. 4 shows the communication protocol determining means 16 of the main information processing device 100.
0 stores the communication protocol identifier used in the logical channel, and from now on, the packet switching network control means 17 (1) uses communication to determine which communication protocol control means will process the communication protocol stored in the received data packet. 3 is a diagram illustrating an example of the configuration of a communication protocol determination table 150. This communication protocol determination table 150 is composed of a communication protocol identifier field 401, a logical channel number field 402, and a communication protocol control address field 403.

The operation related to determining the upper communication protocol in the embodiment of the present invention configured as described above will be explained.

FIG. 3 is a flowchart showing the operation flow of the slave information processing device 101 in determining the upper communication protocol according to the embodiment of the present invention. The application program means 141 uses the communication protocol (1), and the application program means 1 of the main information processing device 100
A connection request for data transmission with 40 is made to the communication protocol control means 133 (Sl).

The communication protocol control means 133 passes control to the packet switching network control means 171 to generate a calling packet (32>).

The packet switching network control means 171 indicates that it is a calling packet in the command field 202 of the packet frame.
Also, in the subscriber number field 203, the main information processing device 10
The packet subscriber number 0 is written in the logical channel number field 201, and each usable and conventional logical channel number is written.
1 (S3). The communication agreement entry means 161 enters the data length (2) and the communication agreement (1) into the user data length field 204 and user data field 205 of the calling packet.
), and passes control to the packet switching network control means 171 (S4). The packet switching network control means 171 sends the calling packet to the subscriber line 111 (S5).

FIG. 5 is a flowchart showing the operation flow of the main information processing bag @100 in determining the upper level communication protocol according to the embodiment of the present invention.

The packet network control means 170 receives an incoming call packet issued by the slave information processing device 101 from the subscriber line 110 (Sll). The packet network control means 170 refers to the user data length field 204 of the packet, and if the data length field is not 0, determines that the upper communication protocol is specified, and passes control to the communication protocol determination means 160 (
S12). The communication protocol determining means 160 uses the logical channel number field 201 of the incoming call packet as a key to determine the logical channel number field 40 of the communication protocol determination table 150.
2 and matched logical channel number field 402
The contents of the user data field 205 of the incoming call packet are transferred to the communication protocol identifier field 401 corresponding to (S13).

In this way, the communication protocol control for processing subsequent packet data received by the packet network control means 170 of the main information processing device 100 from the application program means 141 of the slave information processing device 101 can be determined based only on the logical channel number. .

〔Effect of the invention〕

As explained above, according to the present invention, when using a plurality of different upper communication rules, the upper communication rules are stored in the user data of the calling packet and transmitted to the other party, so that the upper communication rules are processed. Software can be determined accordingly.

In this way, one subscriber line has the advantage of being able to process a plurality of different communication protocols.

[Brief explanation of drawings]

FIG. 1 is a blank diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a diagram showing the structure of a packet frame in a packet switching network to which the upper communication protocol system of the embodiment of the present invention is applied. FIG. 3 is a flowchart showing the processing flow of the information processing device that made the connection request according to the embodiment of the present invention. FIG. 4 is a diagram showing the contents of the communication protocol determination table memory in the embodiment of the present invention. FIG. 5 is a flowchart showing the processing flow of the information processing device on the side that receives the connection request according to the embodiment of the present invention. 100... Main information processing device, 101.102... Slave information processing device, 110.111.112... Subscriber line, 120... Packet switching network, 131.132.1
33.134... Communication protocol control means, 140.141
．． 142... Application program means, 150... Communication protocol determination table, 160... Communication protocol determining means, 1
61.162...Communication agreement entry means, 170.171
．． 172...Packet switching network control means, 201...
Logical channel number field, 202... Command field, 203... Subscriber number field, 204...
- User data length field, 205... User data field, 401... Communication protocol identifier field, 402... Logical channel number field, 403.
...Communication protocol control address field.

Claims (1)

[Scope of Claims] 1. A main information processing device including a plurality of communication protocol control means respectively corresponding to a plurality of communication protocol control means and an application program means for executing data communication according to the communication protocol control means, and a packet exchange This main information processing device is connected to a plurality of slave information processing devices each including a communication protocol control means and an application program means via a network and a subscriber line, and the application program means of the main information processing device is connected to the slave information processing device. In an online information processing device that transfers data with the application program means of one of the devices, an identifier of a communication protocol to be used by the device itself is sent to the slave information processing device in a calling packet when the device wants to start data transfer. Each of the devices includes communication contract entry means for writing in the user data, and causes the main information processing device to refer to a preset communication contract determination table with the communication contract identifier entered in the user data of the incoming call packet at the time of an incoming call. 1. An online information processing apparatus comprising: communication protocol determining means for determining a communication protocol to be used by a higher-level application program and transmitting the determined communication protocol to the slave communication protocol control means.