JPS6195642A - System for returning transmission confirming information - Google Patents

Abstract

PURPOSE:To lower the communication about of a storage exchange network by generating and storing transmission confirming information in response to message reception and transmitting the transmission confirming information altogether or individually to a monitor terminal when a command is received from the transmission monitor terminal. CONSTITUTION:Address information 10 from a terminal device 4A is transmitted to a storage exchange 2A, where the propriety is checked and the result is stored in a storage device 3A and an address response 11 is returned to the terminal device 4A. Thus, the terminal device 4A transmits a transmission data 12. The storage exchange 2A discriminates the end of the transmission data 12, returns a transmission monitor 13 to the terminal device 4A and stores the transmission data 12 in the storage device 3A. After the storage exchange 2A transmits relay information 15 to the storage exchange 2B, the 2A transmits the transmission data 12. The storage exchange 2B stores it in the storage device 3B. The received message is read from the storage device 3B and transmits it to the terminal device 4B. The storage exchange 2B generated the transmission confirming information 24 and transmits it to the monitor terminal device 5A via the storage exchange 2A.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a system for returning delivery confirmation information for messages sent and received between terminals through a store and forward network in a store and forward system.

[Background of the invention]

Conventionally, as a method for returning message delivery confirmation information, as described in Japanese Patent Application Laid-Open No. 126556/1983,
Every time a message is sent or received, delivery confirmation information is sent back from the receiving node to the sending node.

However, this system has the problem that the communication traffic of the store-and-forward network increases due to the return of the delivery confirmation information, which reduces the throughput of the switching equipment serving as the 7-card.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a delivery confirmation information return system that suppresses the amount of communication in a store and forward network in a store and forward system that confirms the delivery of messages.

[Summary of the invention]

The present invention provides, in a store-and-forward network having a sending node that sends a message and a receiving node that receives the message, a sending monitor terminal connected to the sending node and issuing a command requesting delivery confirmation information; and a receiving node that creates and stores delivery confirmation information in response to message reception, and sends the delivery confirmation information all at once or individually to the monitor terminal when receiving a command from the monitor terminal. It is characterized by a delivery confirmation information return method.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 and 2.

FIG. 1 is a system configuration diagram showing a relay method which is an embodiment of the delivery confirmation return method according to the present invention, and FIG. 2 is a diagram showing a sequence of information flowing through a store-and-forward network.

Here, 1 is a store and forward network, 2A and 2B are nodes in the switching network, that is, store and forward switches, and 3A and 3B are respective 7-
Storage device included with the card, 4A.

4B is a terminal accommodated in storage exchanger 2A, 2B, 5A
, 5B are monitor terminals, which constitute a store-and-forward system.

Note that the store-and-forward network 1 normally includes relay nodes in addition to the store-and-switch machines 2A and 2B, but since their functional operations are the same as those of the store-and-switch machines 2A and 2E, they are omitted for convenience of explanation.

The following description will be made assuming that messages are sent from four terminals to terminal 4B, but messages may of course be sent in the opposite direction, and the operation is the same.

First, when the four terminals send destination information 10 related to the message to be sent to the terminal 4B to the two storage and exchangers, the two storage and exchangers receive it, check its validity, and store it in the storage device 3A. Whether or not messages can be accepted (
In this case, it is allowed. ) is sent back to the four terminals.

Thereby, the terminal 4A sends out the transmission data 12 related to the message.

In response, the two storage and exchangers identify the end of the transmission data 12 by its XTX (End of Text) code, etc., return the transmission monitor 13 to the terminal 4A, and store the transmission data 12 in the storage device M3A. .

In order to confirm this, the terminal 4A sends a transmission monitor response 14.
is sent back and the message sending ends.

Next, the two storage/exchangers read the message from the storage device 3A and send relay information (destination information between relay stations) 15 to the corresponding storage/exchanger 2B.

The storage/exchange device 2B receives and confirms this and sends a relay response 16.
to be sent back.

As a result, the two storage/exchangers send out the transmission data 12 related to the read message to the storage/exchanger 2B.

The storage/exchange device 2B receives this and stores it in the storage device 3B, and also returns relay completion information 17 for confirmation.

Further, when the received message is read from the storage device @3B and the reception monitor 18 is sent to the terminal 4B, the terminal 4B receives this and returns a T reception monitor response 19 indicating that the message can be received.

Store and forward i2B receives the reception monitor response 19 from terminal 4B.
When receiving the message, it sends the transmission data 12 related to the message to the terminal 4B.

When the terminal 4B receives this, it returns a reception response 20 to the storage/exchange device 2B in order to confirm this.

On the other hand, when the storage/exchange device 2B reads the message from the storage device 3B, the storage/exchange device 2B uses the delivery confirmation information 24 based on the readout of the message from the storage device 3B.
is created and stored in the storage device 3B.

This delivery confirmation information 24 includes, for example, the sending/receiving serial number, the sending/receiving terminal name (or number), the date and time of sending/receiving, and the type of communication (normal, urgent, etc.).

Confidential, etc.)

Now, when the monitor terminal 5A tries to obtain delivery confirmation information related to a message already sent by the terminal 4A,
A command 21 is transmitted from the monitor terminal 5A to the two storage exchangers.

This command 21 includes the code of the delivery confirmation information request, the type of delivery confirmation information related to a batch message or a specified message, and, in the case of delivery confirmation information related to a specified message, the transmission message to specify the sending message and the receiving terminal. It consists of a serial number, receiving terminal name (or number), etc.

The two storage exchangers receive this, check its validity, and send back a command response 22 indicating whether the command can be accepted (in this case, it is accepted) to the monitor terminal 5A.

Further, the two storage/exchangers send a delivery confirmation information request 23 to the storage/exchanger 2B.

When the storage/exchange 2B receives the delivery confirmation information request 23 from the two storage/exchangers, it sends out the relay information 15 in order to transmit the delivery confirmation information 24 to the two storage/exchangers on the sending side.

When the storage/exchange device 2B receives the relay response 16 thereto, it reads out the delivery confirmation information 24 from the storage device 3B and sends it out.

This delivery confirmation information 24 is relayed by two storage exchangers, and is received and recorded by five monitor terminals.

As a result, the delivery of the transmitted messages sent by the terminal 4A can be confirmed all at once or as desired.

〔Effect of the invention〕

According to the present invention, there is no need for the receiving node to return delivery confirmation information related to all received messages to the transmitting node, so there is an effect that the amount of communication in the store-and-forward network can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram showing a relay method which is an embodiment of the delivery confirmation information return method according to the present invention, and FIG. 2 is a diagram showing a sequence of information flowing through a store-and-forward network. 1... Store and forward network, 2A, 2B... Store and forward machine, 3A, 3B... Storage device, 4A, 4B... Terminal,

Claims (1)

[Claims] In a store-and-forward network having a sending node that sends a message and a receiving node that receives the message, a sending monitor terminal that is connected to the sending node and issues a command requesting delivery confirmation information; and a receiving node that creates and stores delivery confirmation information in response to the above, and sends the delivery confirmation information collectively or individually to the monitor terminal when receiving a command from the monitor terminal. Features delivery confirmation information return method.