JPH09326840A - Communication processing method and device - Google Patents

Abstract

(57) [Abstract] [Problem] When multiple communication connections are set and an error occurs in one of the communication connections,
This means that all communication connections are not terminated abnormally. SOLUTION: A message management unit 12 accepts messages from each communication connection, stores them in a memory in the order of reception, and performs a read operation process by a calculation unit 13 in the order stored in the memory. When an abnormal value is calculated in the processing of a message received from a certain communication connection 21, it is determined that an abnormality has occurred in the communication connection 21. Then, the communication connection 21 managed by the connection information management unit 11
Delete the information in and notify the user of the deletion. Since the other communication connections 22, 23, ... Have no abnormality, they are characterized by being left as they are.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication processing technique for transmitting / receiving a message, processing a protocol, and processing the message in connection-oriented communication processing.

[0002] A connection-oriented communication process means that a communication connection (communication path) is set in advance before exchanging information with a communication partner (transmission / reception). Is used to transmit / receive to / from the other party (specifying the connection ID). On the other hand, in connectionless communication, since a communication path is searched every time information is converted, processing overhead is likely to occur.

[0003]

2. Description of the Related Art In the conventional connection-oriented communication processing, there are two methods: a method of installing and managing a communication processing device for each communication connection and a method of managing a plurality of communication connections with one communication processing device. .

In a large-scale communication system that requires real-time communication processing, it is desirable to manage communication connections by the latter method.

FIG. 6 is a diagram showing a relationship between a conventional communication processing device and a communication connection. In FIG. 6, 1 is a communication processing device, 21, 22, 23, ... Are communication connections, and 2 is a general term for them. 31, 32, 33,
... is a communication terminal device, and 3 is a general term for them. The communication processing device 1 accepts requests for connection setting / release from the communication terminal devices 31, 32, 33, ..., And sets / releases the communication connections 21, 22, 23 ,.
Releases a plurality of communication connections 21, 22, 2
3, ... Performs arithmetic processing on messages generated within.

Conventionally, when an unexpected value is calculated in the arithmetic processing or a processing contradiction occurs during processing of a telegram relating to a certain communication connection 21, the communication processing apparatus 1 operates as a device. All communication connections were abnormally terminated because an error occurred.

[0007]

However, according to this method, the other communication connections 22, 23, ... In which no trouble has occurred are abnormally terminated at the same time.
After restarting the communication processing device 1, the communication connections 22, 23, ... Are to be set again, which is inefficient.

An object of the present invention is to release only a communication connection in which an abnormality has occurred and not release a communication connection in which no abnormality has occurred when an abnormality occurs when a plurality of communication connections are set. is there.

[0009]

A communication processing method according to the present invention comprises: (a) receiving telegrams from a plurality of communication connections, (b) storing the telegrams in a memory in the order of reception, and (c) from the memory. Read the stored messages in the order received, (d)
If the processing result is a normal value, the processing result is transmitted to the corresponding communication connection, and the next message is read, (f) If the processing result is an abnormal value, the information of the relevant communication connection is deleted, only the relevant communication connection is released, the user is notified that the relevant communication connection has been released, and the next message is read. , (A) ~ until there is no telegram stored in the memory
The feature is that the process of (f) is repeated.

The communication processing apparatus according to the present invention includes a connection information management unit that manages communication connection information every time a communication connection is set up, a message management unit that manages a message for each communication connection and its status. An operation unit that performs an operation process related to a message for each communication connection, and a connection control unit that clears all information of the communication connection and releases the communication connection when an error occurs during the operation process related to a message for each communication connection, And a notification unit that notifies the user that the communication connection has been released.

Since the present invention manages information for each communication connection and can distinguish the communication process for each communication connection, when an abnormality occurs during the communication process for a certain communication connection, it relates to the communication connection. By deleting only the information, it is possible to deal with the abnormality without bringing down the device and without affecting other communication connections.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a sequence diagram showing an example of a connection setting procedure, and FIG. 3 is an example of a message processing procedure of a communication processing device 10. It is a flowchart showing.

In FIG. 1, 10 is a communication processing device according to the present invention, 2 is a communication connection, 21, 22 and 23 are individual communication connections, 3 is a communication terminal device, and 31, 3
Reference numerals 2 and 33 are individual communication terminal devices, which are the same as those in FIG. 11 is a connection information management unit, 12 is a message management unit, 13 is a calculation unit, 14 is a connection control unit, 15
Indicates a notification unit. Next, the operation will be described.

The connection control unit 14 accepts connection setting / release requests from the communication terminal devices 31, 32, ..
Set / release. Information on the set communication connection is managed by the connection information management unit 11. The message management unit 12 accepts messages received from the communication connections 21, 22, ... And stores them in a memory buffer (not shown). The arithmetic unit 13 sequentially reads the electronic messages received by the electronic message management unit 12 and performs arithmetic processing. Notification unit 15
Notifies the user (operator) of the communication processing device 10 of the setting / release of the communication connection 21.

FIG. 2 is a sequence diagram showing an example of a connection setting procedure, and P1 to P3 show each procedure. In step (P1), first, a communication connection setting request is transmitted from the communication terminal device 3 to the communication processing device 10.
Communication processing device 1 that has received a communication connection setting request
At 0, the communication connection information is recorded in the connection information management unit 11 in step (P2). As a result, the communication connection is set, and the step (P3)
Then, the fact is reported to the communication terminal device 3.

FIG. 3 is a flowchart showing an example of a message processing procedure of the communication processing device 10. (S1)-
(S8) shows each step. The message management unit 12 accepts messages from each communication connection 2 in step (S1), and stores the messages in the memory in the order of reception in step (S2). Then, the calculation unit 13 at step (S3),
The stored electronic messages are read in the order of reception from the memory, and arithmetic processing is performed in step (S4).

Now, in step (S5), it is assumed that an abnormal value is calculated as a result of the arithmetic processing relating to the electronic message received from a certain communication connection 21. At this time, the calculation unit 13 determines that an abnormality has occurred in the communication connection 21. Then, in step (S6), the connection control unit 14 deletes the information of the communication connection 21 managed by the connection information management unit 11. As a result, the communication connection 21 is considered to have been released in the communication processing. Then, in step (S7), the notification unit 15 notifies the user of the communication processing device 10 that the communication connection 21 has been released. If no abnormal value is detected in step (S5), the processing result is transmitted to the corresponding communication connection (S8), and the process returns to step (S3). This operation is performed for each process.

Next, a specific example of the message processing will be described with reference to FIGS.

FIG. 4 shows an example of a message 40 to be processed, which is a protocol data unit code section 41.
And a message section 42.

<Syntax Interpretation> For example, the message section 42 of FIG. 4 is composed of a combination of basic encoding formats (TLV format) of bit strings as shown in FIG. This is shown in FIG.
Interpretation and conversion into a format (structure etc.) that is easy for software to calculate as shown in (b).

<Example of Arithmetic Processing and Judgment of Processing Result> (1) For example, the protocol data unit code section 4
Whether or not the command in 1 is the type of command permitted as a protocol, (2) whether the parameter in the message section 42 is in the permitted type and value range, or if there is an abnormality as a result of the above, communication is performed. Release only the connection,
"Notify that something is wrong" is sent to the user.

[0022]

As described above, the communication processing method and apparatus according to the present invention manages information for each communication connection, and it is possible to distinguish the communication processing for each communication connection and perform the message processing for each communication connection. age,
In addition, by deleting the information of the connection concerned, it is possible to deal with an abnormality during processing without affecting other connections.

[Brief description of drawings]

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

FIG. 2 is a sequence diagram showing an example of a connection setting procedure in the embodiment of FIG.

FIG. 3 is a flowchart showing an example of a message processing procedure of the communication processing device in the embodiment of FIG.

FIG. 4 is a diagram showing an example of a message for explaining a message process of the communication processing device in the embodiment of FIG.

5 is a diagram for explaining the message processing of FIG. 4. FIG.

FIG. 6 is a diagram showing a relationship between a conventional communication processing device and a communication connection.

[Explanation of symbols]

 2 communication connection 3 communication terminal device 10 communication processing device 11 connection information management unit 12 message management unit 13 arithmetic unit 14 connection control unit 15 notification unit 40 message 41 protocol data unit code unit 42 message unit

Claims (2)

[Claims] 1. A communication processing method for managing a plurality of communication connections by one process and processing a message generated for each of these communication connections, comprising: (a) receiving a message from a plurality of communication connections; ) Store the electronic messages in the memory in the order of reception, (c) read the stored electronic messages from the memory in the order of reception, (d) interpret the syntax of the electronic messages and perform arithmetic processing according to the interpretation contents, If is a normal value, the processing result is sent to the relevant communication connection and the next message is read. (F) If the processing result is an abnormal value, the information of the relevant communication connection is deleted and the relevant communication connection is deleted. And the user is notified that the corresponding communication connection has been released, and the next message is read, and the message stored in the memory disappears. Wherein (a)
A communication processing method, characterized in that the processing of (f) is repeated. 2. In a communication processing device for managing a plurality of communication connections and processing a message generated for each of these communication connections, connection information management for managing information of the communication connections every time the communication connection is set. Section, a message management section that manages the message and its status for each communication connection, a calculation section that performs calculation processing related to the message for each communication connection, and if an error occurs during the calculation processing related to the message for each communication connection, A communication processing device, comprising: a connection control unit that clears all communication connection information and releases only the communication connection; and a notification unit that notifies the user that the communication connection has been released. .