JPH03278636A - Communication control system in information communication network - Google Patents

Abstract

PURPOSE:To reduce the memory quantity or the like by managing sequence control in the communication through the combination of identification of a terminal equipment in a gateway and of identification of a terminal equipment of opposite gateway between terminal gateway sections and through the combination of identification of opposite gateway between gateways. CONSTITUTION:A gateway identification (GWA) and in-gateway terminal identification (TEA) are given respectively to gateway sections (GW) 10-30 and terminal equipments (TR) 100-302. For example, a caller terminal identification comprising outgoing GWA and outgoing TEA and an incoming identification comprising incoming GWA and incoming TEA are included in the information sent from the TR 100 to the TR 200. Thus, the sequential number of information is managed by the combination of mutual GWA between GW and by the combination of GWA of opposite terminal GW and TEA of its own terminal between TR and GW in the sequence control in the communication. Thus, the quantity of buffer memories or the like storing tentatively the transmission information is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a communication control method in an information communication network, and more particularly to a communication control method in a multi-layered bus or loop information communication network having a gateway section.

[Conventional technology]

Conventionally, in this type of information communication network, terminal identification and sequence control in communication control procedures between terminals or between terminals and a gateway unit are performed using originating terminal identification (hereinafter referred to as OA) that identifies the originating terminal. Destination terminal identification (hereinafter referred to as D)
Sequence control was performed by adding a transmission sequential number (hereinafter referred to as N(S)) and a reception sequential number (hereinafter referred to as N(R)) to information transmitted and received between terminals for each combination of both of A).

[Problem to be solved by the invention]

The above-mentioned conventional terminal identification and order control method is not suitable for a combination of OA and DA when the number of terminals is extremely large in a wide area communication network such as a multi-layered bus having a gateway section or a loop type information communication network. N(S) and N that each game has
(R) Another drawback is that the amount of buffer anomaly, etc., which temporarily stores transmission information for single transmission control, increases in proportion to the square of the number of terminals.

[Means to solve the problem]

The communication control method in the information communication network of the present invention is such that in a multi-layered bus or corporate loop type information communication network having a gateway section, terminal identification for identifying terminals is divided into gateway identification and gateway inner end identification, which are different from each other. Communication between two terminals housed in the gateway unit is not limited to communication between the gateway units and communication between the gateway unit and the terminal, and communication between the gateway units is based on a combination of the gateway identifications of each The present invention is characterized in that the order of information to be communicated is controlled, and in communication between the gateway unit and the terminal, the order of the information to be communicated is controlled by a combination of the gateway identification of the gateway unit on the other side terminal side and the terminal identification within the gateway of the own terminal. .

〔Example〕

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

FIG. 1 is a block diagram of information transmitted and received between terminals in an information communication network showing an embodiment of the present invention, and FIG. 2 is a block diagram of a two-layer information communication network showing an application example of the present invention. .

In the information communication network shown in FIG. 2, each bus type communication path 1.2.
~ 3 and the main bus communication path 4 are connected to the gateway section (hereinafter referred to as G
W) 10,20. ~30. Each bus type communication path 1, 2. ~3 each has a terminal (hereinafter referred to as TR) 1
00.10.1. ~102, TR200, 201, ~2
02. ~TR300, 301, ~TR302 are connected. Each GW and TR has a gateway identification (
GWA) and gateway terminal identification (TEA).

Here, as an example, a case will be described in which the TR 100 communicates with the TR 200 accommodated in another GW 20.

As shown in Figure 1, the information sent from the originating terminal TR100 to the destination terminal TR200 includes the OA consisting of the originating gateway identification (originating GWA), the terminal identification within the originating gateway (originating TEA), and the terminating gateway identification (terminating gateway). GWA) and terminal identification within the destination gateway (TEA').

The information sent from TR100 is sent to the originating gateway section GW.
When performing order control with IO,
The pair of destination GWA in EA and DA manages N(S) and NCR) and performs order control.
When performing order control between the IO and the destination gateway unit GW20, the order control is performed by managing N (S) and N (R) in the pair of the originating GWA in the OA and the destination GWA in the DA. Furthermore, the destination gateway section GW20 and the destination terminal TR20
When performing order control with 0, the issuing GW in OA
The pair of A and the destination TEA in DA manages N(s) and N(R) and performs order control.

Note that the order control is similarly performed in the reverse direction, that is, when communicating from TR200 to TR100.

Next, order control in communication between any two terminals accommodated in different GWs is performed by combining mutual gateway identifications (GWA) between GWs, and by using the gateway identification (GWA) of the other terminal's GW between TR and GW. The sequential number of the information can be managed by a combination of the gateway terminal identification (T EA ) and the own terminal's intra-gateway terminal identification (T EA ).

The reason why the gateway identification of the terminal-side gateway unit and the terminal identification within the gateway of the own terminal are not used in communication between the terminal and the gateway is that translation of the signal output route is not required.

〔Effect of the invention〕

As explained above, in the terminal identification and sequence control in communication control of the present invention, terminal identification is separated into gateway identification and gateway internal terminal identification, and between the terminal and the gateway section, the intra-gateway terminal identification and the gateway identification of the other party are separated. The number of combinations is significantly reduced compared to the conventional combination of OA and DA, and the amount of memory etc. can be reduced by managing the gateways by combining mutual gateway identifications.

[Brief explanation of drawings]

FIG. 1 is a block diagram of information transmitted and received between terminals in an information communication network showing an embodiment of the present invention, and FIG. 2 is a block diagram of a two-layer information communication network showing an application example of the present invention. . 1.2. ~3...Bus type communication path, 4...Basic bus type communication path, 10,20. ~30... Gateway section (GW), 100.101. ~102,200°201
, ~202,300,301. ~302...Terminal (T
R), OA... Originating terminal identification, DA... Destination terminal identification, GWA... Gateway identification, TEA... Gateway internal terminal identification.

Claims (1)

[Claims] In a multi-layered bus or loop type information communication network having a gateway section, terminal identification for identifying terminals is divided into gateway identification and intra-gateway terminal identification, and communication between two terminals accommodated in different gateway sections is handled by the gateway. Communication between the gateway units and the terminal is divided into communication between the gateway units and the terminal, and in the communication between the gateway units, the order of the information to be communicated is controlled by the combination of the mutual gateway identifications, and the communication between the gateway unit and the terminal is divided into communication between the gateway units and the terminal. A communication control method in an information communication network, characterized in that, in communication, the order of information to be communicated is controlled by a combination of a gateway identification of a gateway unit on the other party's side and a terminal identification within the gateway of the own terminal.