JP3107029B2 - Communication protocol inspection system and information recording medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication protocol inspection system and an information recording medium for inspecting an execution state of a communication protocol for performing communication through a communication network in a line disconnection state and a line normal state. The present invention relates to a communication protocol inspection system and an information recording medium for inspecting a line disconnection state in a pseudo manner through a control program.

[0002]

2. Description of the Related Art Conventionally, a communication apparatus that performs communication through a communication network checks the execution state of a communication protocol. In this inspection, for example, in a communication protocol execution state in a line normal state (non-line disconnected state) when data communication in the communication network is normally performed, or in a line disconnected state where data communication in the communication network is impossible. Checking the execution status of the communication protocol. In the inspection of the line disconnection state, a line connection is performed between communication devices by a communication protocol, and thereafter, a plug of the transmission cable connected to the connector of the communication device is manually removed from the connector, or the transmission cable, the connector or the plug is disconnected. For example, a switch for setting the line disconnection state is provided, and this switch is set to off.

That is, a line disconnection state in which data communication on a communication network is impossible is intentionally set, and an execution state of a communication protocol is checked. After checking the execution state of the communication protocol set to the line disconnected state,
The plug of the transmission cable connected to the connector of the communication device is manually reattached to the connector, or the transmission cable,
It is necessary to set a switch provided on a connector or a plug to a normal line state. As described above, the inspection of the execution state of the communication protocol in the line disconnected state or the line normal state is performed by a manual operation, in other words, the line in which data communication on the communication network is impossible at the time of the inspection of the communication protocol. Since the disconnection state and the normal line state in which data communication is possible are manually set manually, the inspection cannot be automated.

[0004]

As described above, in the above conventional example, when a communication protocol for performing communication through a communication network is inspected, a line disconnection state in which data communication in the communication network is impossible or data communication becomes impossible. The possible line normal state was manually set, and the operation was troublesome. In other words, in the conventional inspection of the line disconnection state or the line normal state, the line disconnection state or the line normal state is automatically set, and the inspection cannot be automated. There was a problem. Japanese Patent Application Laid-Open No. Sho 62-157 relates to this type of technology.
No. 441 and Japanese Patent Application Laid-Open No. Hei 2-21766, but these have the same problem.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art. When a communication protocol for performing communication through a communication network is inspected, a line disconnection state or a data communication in which data communication in the communication network is impossible. The purpose of the present invention is to provide a communication protocol inspection system and an information recording medium in which a line normal state capable of automatically setting is automatically set by a control program and the inspection of the communication protocol can be automated, and the inspection efficiency of the communication protocol is improved. I do.

[0006]

In order to achieve the above object, a communication protocol inspection system according to the present invention provides a communication protocol inspection system in which one and the other communication processing devices execute a communication protocol and perform line connection through a communication path, Line disconnection request data is transmitted from one communication processing unit to the other communication processing unit, and the other communication processing unit that receives the line disconnection request data stops executing the communication protocol and generates a line disconnection state, According to the line disconnection state, one communication processing device checks the execution state of the communication protocol in the line disconnection state by executing an inspection program.

The one communication processing device communicates with the other communication processing device and executes a communication protocol to be tested for a line disconnection state, and a communication protocol processing unit to be tested. The communication protocol processing unit checks the execution state of the communication protocol in the line disconnection state, and includes a check program processing unit that sends line disconnection request data to the other communication processing device.

Further, the other communication processing device here executes communication with the one communication processing device, and stops the execution of the communication protocol under the control of generating a line disconnection state. A reception data identification unit that identifies reception of line disconnection request data from one of the communication processing devices;
A line disconnection state control unit that controls the communication protocol processing unit when the reception data identification unit identifies the reception of the line disconnection request data, and controls to stop execution of the communication protocol and generate a line disconnection state There is.

Further, the communication protocol inspection system of the present invention transmits line disconnection request data and line disconnection time data from one communication processing unit to another communication processing unit, and transmits the line disconnection request data and line disconnection time data. The other communication processing device that has received the communication protocol stops the execution of the communication protocol within the time specified by the line disconnection time data to generate a line disconnection state, and the other communication processing device within the period of the line disconnection state. However, it is configured to execute the inspection program to check the execution state of the communication protocol in the line disconnected state, and to check the execution state of the communication protocol in the line normal state after a lapse of time by executing the inspection program. .

Here, one communication processing device performs communication with the other communication processing device, and executes a communication protocol to be inspected for executing a communication protocol of a line disconnected state or a line normal state within a time or after a lapse of time. The protocol processing unit, and inspects the communication protocol execution state in the line disconnection state or the line normal state in the inspection target communication protocol processing unit, and,
An inspection program processing unit for transmitting line disconnection request data and line disconnection time data to the other communication processing device is provided.

Further, the other communication processing device here executes communication with the one communication processing device, stops execution of the communication protocol by controlling occurrence of a line disconnection state, and A communication protocol processing unit that executes a communication protocol in a line normal state when control for generating a state is stopped, and a reception data identification unit that identifies reception of line disconnection request data and line disconnection time data from one of the communication processing devices When,
A timer control unit that measures the line disconnection time based on the line disconnection time data from the reception data identification unit, and within a time period measured by the timer control unit when the reception data identification unit identifies the reception of the line disconnection request data. A line disconnection state control unit for controlling the communication protocol processing unit to stop the execution of the communication protocol to generate a line disconnection state, and for controlling to execute the communication protocol in the line normal state after a lapse of time. There is.

Further, in the communication protocol inspection system of the present invention, the execution of the communication protocol processing unit may be stopped.
The configuration is such that the respective controls are performed such that the task of the data processing unit in the execution of the communication protocol is shifted or the process of the process being executed is shifted to the suspend state in which the process is temporarily stopped.

Further, according to the information recording medium of the present invention, one and the other communication processing devices execute a communication protocol to perform a line connection through a communication path, and transmit line disconnection request data from one of the communication processing devices to the other. The other communication processing device that has transmitted the communication disconnection request data and has received the line disconnection request data stops execution of the communication protocol and generates a line disconnection state, and according to this line disconnection state, one communication processing device A control program for checking the execution state of the communication protocol in the line disconnected state by executing the check program is recorded.

[0014] Further, the line disconnection request data and the line disconnection time data are transmitted from one of the communication processors to the other communication processor, and the other communication processor receiving the line disconnection request data and the line disconnection time data transmits the data. The execution of the communication protocol is stopped within the time specified by the line disconnection time data to generate a line disconnection state, and during the period of the line disconnection state, one of the communication processing apparatuses performs the communication protocol in the line disconnection state. Is executed by executing a check program, and a control program for checking the communication protocol execution state in a line normal state after a lapse of time by executing the check program is recorded.

In the communication protocol inspection system of the present invention having the above-described structure, the other communication processing device, which has received the line disconnection request data from one of the communication processing devices, stops executing the communication protocol and generates a line disconnected state. Let me. According to the line disconnection state, one communication processing device checks the execution state of the communication protocol in the line disconnection state by executing the inspection program.

As a result, at the time of checking a communication protocol in a communication device that performs communication through the communication network, a line disconnection state in which data communication on the communication network is impossible is automatically set by the control program, and the automatic disconnection state is set. The inspection can be performed, and the inspection efficiency of the communication protocol is improved.

Further, according to the communication protocol inspection system of the present invention, the other communication processing device, which has received the line disconnection request data and the line disconnection time data from one of the communication processing devices, disconnects the execution of its own communication protocol. It is stopped within the time specified by the time data to generate a line disconnection state or a line normal state. According to the line disconnection state or the line normal state, one of the communication processing apparatuses checks the execution state of the communication protocol in the line disconnection state or the line normal state by executing the inspection program.

Therefore, at the time of checking a communication protocol in a communication device that communicates through a communication network,
The control program automatically sets the line disconnection state in which data communication on the communication network is not possible in time,
After this time, the line is set to the normal state. Therefore, the line disconnection state and the line normal state can be automatically inspected, and the inspection efficiency of the communication protocol is further improved.

Further, according to the information recording medium of the present invention, the control protocol (software) executed by the inspection program processing unit is stored in a floppy disk or an exchangeable EEPROM.
It becomes possible to make the package software stored in the. As a result, it becomes easy to apply a communication protocol to a general-purpose small computer.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of a communication protocol inspection system and an information recording medium according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a communication protocol inspection system according to a first embodiment of the present invention. In the communication protocol inspection system according to the first embodiment, communication processing apparatuses 1 and 2 are connected via a communication network NW.

The communication processing apparatus 1 performs data communication with the communication processing apparatus 2 and executes a communication protocol to be inspected for a line disconnection state in the communication network NW. The communication protocol execution unit 11 checks the communication protocol execution state (normal or abnormal) when the line disconnection state occurs to the inspection target communication protocol processing unit 11, and notifies the communication processing apparatus 2 of the line in the communication network NW. Inspection program processing unit 12 for transmitting line disconnection request data for generating a pseudo line disconnection state equivalent to the disconnection state, and communication control unit 13 for controlling transmission and reception of communication data between communication processing unit 2 And

The communication processing unit 2 executes communication with the communication processing unit 1 and stops the execution of the communication protocol when a pseudo line disconnection occurs, and a communication network NW. Received data identification unit 22 for identifying whether or not a line disconnection state is to be generated based on the reception of the line disconnection request data, and when the received data identification unit 22 identifies the reception of the line disconnection request data. The communication data between the communication processing device 1 and the line disconnection state control unit 23, which controls the communication protocol processing unit 21 to stop the execution of the communication protocol and generates a pseudo line disconnection state. Control device 2 for controlling transmission and reception of data
And 4.

Next, the operation of the first embodiment will be described. In FIG. 1, in this operation, the communication processing devices 1 and
2 causes a pseudo line disconnection state equal to the state in which data communication via the communication network NW is impossible, and the communication protocol to be inspected in the communication processing device 1 determines what execution state (normal or abnormal). An automatic inspection is performed by executing an inspection program.

First, a communication protocol is executed between the communication processing apparatuses 1 and 2 to establish a line connection through the communication network NW, and the data communication is executed. Thereafter, in order to generate a pseudo line disconnection state, line disconnection request data for requesting the occurrence of the line disconnection state is transmitted from the communication processing apparatus 1 to the communication processing apparatus 2 via the communication network NW. Upon receiving the line disconnection request data, the communication processing device 2 stops the operation of the communication protocol in the communication processing device 2. As a result, a pseudo disconnection state equivalent to the disconnection state in the communication network NW occurs between the communication processing apparatuses 1 and 2. By this line disconnection state, the communication processing device 1 changes the execution state of the communication protocol in the line disconnection state to
Run the inspection program to inspect.

Hereinafter, this operation will be described in detail. FIG. 2 is a flowchart of the operation of the communication processing device 1 in the first embodiment, and FIG. 3 is a flowchart of the operation of the communication processing device 2 in the first embodiment. 1 to 3, a communication protocol is executed between the communication processing apparatuses 1 and 2 to perform a line connection through the communication network NW, and the data communication is executed. Thereafter, the inspection program processing unit 12 of the communication processing device 1 makes preparations for inspecting the operation of the communication protocol processing unit 11 to be inspected when the line is disconnected (step S1 in FIG. 2). The inspection program processing unit 12
The line disconnection request data is sent to the communication processing device 2 by the communication control device 1
3 and the communication network NW (step S2 in FIG. 2).

The communication protocol processing section 21 of the communication processing device 2 fetches the line disconnection request data from the communication processing device 1 through the communication network NW through the communication control device 24 (step S11 in FIG. 3). The line disconnection request data from the communication protocol processing unit 21 is sent to the reception data identification unit 22, where it is determined whether the line disconnection request data is present (step S12 in FIG. 3). If it is determined that the data is the line disconnection request data (S12: Yes), the reception data identification unit 22 notifies the line disconnection state control unit 23 of this fact.
Notify to The line disconnection state control unit 23 controls the communication protocol processing unit 21 and performs control to stop execution of the communication protocol here (step S13 in FIG. 3).

The operation of the communication protocol processing unit 21 is stopped in a unit of data processing (task) in executing the communication protocol, or in a state in which the process being executed is temporarily stopped (suspend). As described above, the line disconnection state control unit 23 performs the control.

If it is determined in step S12 that the data is not line disconnection request data (S12: No), the process returns to re-reception of line disconnection request data from the communication processing device 1. The execution of the communication protocol is stopped by the control of the communication protocol processing unit 21 in the line disconnection state control unit 23, and as a result, a pseudo line disconnection state similar to the line disconnection state in the communication network NW occurs. Due to the occurrence of the pseudo line disconnection state, the inspection program processing unit 12 detects the execution state of the communication protocol processing unit 11 to be inspected in the communication processing apparatus 1 and responds to the line disconnection state where data communication is not possible. An inspection is performed. (Step S3 in FIG. 2)

[0029] As a result, pseudo by this first embodiment, when inspection of the communication protocol in the communication device 1 communicates through a communications network NW, the data communication is line disconnection state impossible in a communication network NW, the control program And the execution state of the communication protocol in the line disconnected state can be automatically checked, and the inspection efficiency of the communication protocol is improved.

FIG. 4 is a block diagram showing the configuration of the communication protocol inspection system according to the second embodiment. In this communication protocol inspection system, communication processing devices 3 and 4 are connected through a communication network NW. Communication processing device 3
Performs data communication with the communication processing device 4 and
Within or after the passage of time, the communication protocol processing unit 31 to be executed for executing the communication protocol in the line disconnected state or the line normal state;
And a check program processing unit 32 for checking the execution state of the communication protocol in the line disconnection state or the line normal state, and sending out the line disconnection request data and the line disconnection time data to the communication processing device 4. And a communication control device 33 for controlling transmission and reception of communication data with the processing device 4.

The communication processing device 4 executes communication with the communication processing device 3, stops the execution of the communication protocol when the line disconnection state occurs, and sets the line when the line disconnection state stops. A communication protocol processing unit 41 for executing a communication protocol in a normal state, and whether or not to generate a line disconnection state within a designated time is identified based on reception of the line disconnection request data and the line disconnection time data via the communication network NW. And a received data identification unit 42 that performs the processing.

Further, the communication processing unit 4 controls the communication protocol processing unit 41 within the time measured by the timer control unit 45 when the reception data identification unit 42 identifies the reception of the line disconnection request data, and performs communication. The communication data between the communication processing device 3 and the line disconnection state control unit 43 which stops the execution of the protocol to generate a line disconnection state and executes a communication protocol in a line normal state after a lapse of time. a communication control unit 44 for controlling the transmission and reception of the reception data identification unit 4
Timer control unit 45 that measures the line disconnection time based on the line disconnection time data from 2 and notifies line disconnection state control unit 43.
And

Next, the operation of the second embodiment will be described. In FIG. 4, in this operation, the communication processing devices 3 and
4, a pseudo line disconnection state equal to an impossible state of data communication through the communication network NW is generated in time, and the communication protocol to be inspected in the communication processing apparatus 3 determines what execution state (normal Or abnormal)
The inspection program is executed and the inspection is performed. Furthermore, time
After a lapse of time, the communication protocol returns to the line normal state,
The execution state of the line normal state is checked by executing a check program.

A communication protocol is executed between the communication processing devices 3 and 4 to establish a line connection through the communication network NW and execute data communication. Thereafter, in order to generate a pseudo line disconnection state, line disconnection request data for requesting the occurrence of the line disconnection state and line disconnection time data for designating the line disconnection state occurrence time are transmitted from the communication processing device 3 to the communication processing. It is transmitted to the device 4 through the communication network NW.

When receiving the line disconnection request data and the line disconnection time data, the communication processing unit 4 stops the execution of the communication protocol in the communication processing unit 4 within the time designated by the communication processing unit 3. As a result, the communication processing devices 3 and 4
A pseudo line disconnection state equivalent to the line disconnection state in the communication network NW occurs within the designated time. Based on this line disconnection state, the communication processing device 3 checks the execution state of the communication protocol in the line disconnection state by executing the inspection program. After a lapse of time, the execution state of the line normal state in the execution of the communication protocol is checked by executing the check program.

Next, the operation of the second embodiment will be described in detail. FIG. 5 is a flowchart of the operation of the communication processing device 3 in the second embodiment, and FIG. 6 is a flowchart of the operation of the communication processing device 4 in the second embodiment. 4 to 6, a communication protocol is executed between the communication processing devices 3 and 4 to perform line connection through the communication network NW, and the data communication is executed. After that, the inspection program processing unit 32 prepares for inspecting the execution state of the inspection target communication protocol processing unit 31 in the line disconnected state or the line normal state (step S21 in FIG. 5).

The inspection program processing unit 32 transmits line disconnection time data for determining the time of the line disconnection state from the communication processing unit 3 to the communication processing unit 4 from the communication control unit 33 to the communication processing unit 4 via the communication network NW. (Step S22 in FIG. 5). In the communication processing device 4, the communication protocol processing unit 41 captures the line disconnection time data from the communication processing device 3 (step S31 in FIG. 6), and sends out the line disconnection time data to the reception data identification unit 42. (Step S32 in FIG. 6). If it is determined that the data is line disconnection time data (S32: Ye
s) The line disconnection time data is transmitted to the reception data identification unit 42.
To the timer control unit 45. If the data is not the line disconnection time data, the process returns to step S31 and repeats the reception of the line disconnection time data.

Next, the inspection program processing section 32 of the communication processing device 3 transmits the line disconnection request data to the communication control device 33,
The data is transmitted to the communication processing device 4 through the communication network NW (step S23 in FIG. 5). Line disconnection request data from the communication processing device 3 is transmitted through the communication network NW.
The communication protocol processing unit 41 of the communication processing device 4 takes in (step S33 in FIG. 6) and sends it to the received data identification unit 42. The received data identification unit 42 identifies whether or not the data is line disconnection request data (step S34 in FIG. 6). If it is determined that the data is line disconnection request data (S34: Y
es), this is sent to the line disconnection state control unit 43.

The line disconnection state control unit 43 controls the communication protocol processing unit 41 to stop the execution of the communication protocol here. The operation of the communication protocol processing unit 41 is stopped in a data processing unit (task) in the execution of the communication protocol or in a state in which the process being executed is temporarily stopped (suspended).
The line disconnection state control unit 43 performs the control.

When the processing is stopped, a pseudo line disconnection state in the communication network NW occurs (step S3 in FIG. 6).
5). At the same time, it sends out the line disconnection request data to the timer control unit 45 when the received data identification unit 42 determines that it is the line disconnection request data. The timer for counting the line disconnection state time by the timer control unit 45 is activated (step S36 in FIG. 6). When the received data identification unit 42 determines that the data is not line disconnection request data, a timer for counting the line disconnection state time
Step S3 is executed without executing the process started by the control unit 45.
Returning to step 3, re-reception of the line disconnection request data is repeated.

The test program processing unit 32 detects the execution state of the communication protocol in the communication protocol processing unit 31 to be inspected in the communication protocol processing unit 31 of the communication processing apparatus 3 based on the pseudo line disconnection state. Next, the communication processing device 4 compares the time measured by the timer control unit 45 with the line time data (step S37 in FIG. 6). This step S37 is repeated until the clock time is reached. When the clock time is reached, the line disconnection state control unit 43 controls the processing of the communication protocol processing unit 41 to release the line disconnection state. With this release, the pseudo line disconnection state returns to the line normal state, and the communication processing device 3 detects the execution state of the communication protocol in the line normal state in the inspection target communication protocol processing unit 31 by the inspection program processing unit 32. Then, the inspection ends (step S38).

[0042] through that communicates through this way, in the second embodiment, as in the first embodiment the communication network NW
At the time of checking the communication protocol in the communication processing device 3 , it is possible to perform a check automatically set by the control program to a line disconnection state in which data communication on the communication network NW is impossible. At the same time, the execution of the communication protocol by the communication protocol processing unit 41 of the communication
Station 3 stops within the specified time. As a result, the line disconnection state is completed within the designated time, and it is possible to automatically return to the inspection of the normal communication protocol, and the inspection efficiency of the communication protocol is further improved.

The communication processing apparatuses 1 to 4 include the communication protocol (communication operation control program) of the communication protocol processing units 11 and 31 to be inspected in the first and second embodiments, and the first and second embodiments. In general, a general-purpose small computer (personal computer) equipped with a control program to be executed by the inspection program processing units 12 and 32 is used.

In this case, the communication control devices 13, 24, 3
As devices 3 and 44, devices corresponding to the transmission sequence of the communication network NW may be used. For example, an ISDN line is used as a communication network NW, and a communication protocol (communication operation control program) such as TC
P / IP (Transmission Control Protocol / Internet Pr
otocol), the communication control devices 13, 24, 3
3 , 44 is suitably connected to a digital terminal unit (DSU) and a terminal adapter (TA) for connection to a local area network (LAN), and connected to a plurality of general-purpose small computers.

The communication network NW may use a simple communication line, for example, an RS-232C cable. In this case, the communication control devices 13, 24, 33 , 44
May use an RS-232C interface. When the communication network NW is a closed communication line other than a public line and a general-purpose small computer is used as the communication processing devices 1 to 4, a well-known Y / Z-MO is used.
A transmission protocol such as DEM is adopted, and a modulation / demodulation device may be used as the communication control device 13, 24, 33 , 44.

When a general-purpose small computer (personal computer) is used as each of the communication processing apparatuses 1 to 4 in the first and second embodiments shown in FIGS. 1 and 4, the software of the inspection program processing sections 12 and 32 is used. Floppy disk (FD) or replaceable EEPROM
And convert it to package software. As a result, the inspection of the execution state of the communication protocol in the line disconnection state and the line normal state in the first and second embodiments shown in FIGS. 1 and 4 can be easily applied to a general-purpose small computer or the like. Become.

[0047]

As is apparent from the above description, according to the communication protocol inspection system of the present invention, the other communication processing device that has received the line disconnection request data from one communication processing device executes the communication protocol. Is stopped to generate a line disconnection state. According to the line disconnection state, one communication processing device checks the execution state of the communication protocol in the line disconnection state by executing the inspection program.

As a result, at the time of checking the communication protocol in the communication device that communicates through the communication network, the line disconnection state in which data communication on the communication network is impossible is automatically set by the control program, and the automatic setting is performed. The inspection can be performed, and the inspection efficiency of the communication protocol is improved.

Further, according to the communication protocol inspection system of the present invention, the other communication processing device which receives the line disconnection request data and the line disconnection time data from one communication processing device instructs the execution of the communication protocol by the line disconnection time data. The line is stopped within the set time and a line disconnection state or a line normal state is generated. Depending on this line disconnection state or line normal state,
One of the communication processing apparatuses inspects the execution state of the line disconnection state or the line normal state of the communication protocol by executing the inspection program.

Therefore, at the time of checking the communication protocol in the communication device that performs communication through the communication network,
The control program automatically sets the line disconnection state in which data communication on the communication network is not possible in time,
After this time, the line is set to the normal state. As a result,
The execution state of the communication protocol in the line disconnected state and the line normal state can be automatically checked, and the inspection efficiency of the communication protocol is further improved.

Further, with the information recording medium of the present invention, it becomes possible to make the control protocol executed by the inspection program processing unit into a package software in which the control protocol is stored in a floppy disk or an exchangeable EEPROM. As a result, it becomes easy to apply the communication protocol inspection to a general-purpose small computer or the like.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a communication protocol inspection system and an information recording medium according to a first embodiment of the present invention.

FIG. 2 is a flowchart of an operation of one communication processing device in the first embodiment.

FIG. 3 is a flowchart of an operation of the other communication processing device in the first embodiment.

FIG. 4 is a block diagram illustrating a configuration of a communication protocol inspection system and an information recording medium according to a second embodiment.

FIG. 5 is a flowchart of an operation of one communication processing device in the second embodiment.

FIG. 6 is a flowchart of an operation of the other communication processing device in the second embodiment.

DESCRIPTION OF SYMBOLS 1-4 Communication processing device 11, 31 Inspection target communication protocol processing unit 12, 32 Inspection program processing unit 13, 24, 33, 44 Communication control device 21, 41 Communication protocol processing unit 22, 42 Received data identification Unit 23, 43 line disconnection state control unit 45 timer control unit NW communication network

Claims (9)

(57) [Claims] 1. One and the other communication processing devices execute a communication protocol to perform a line connection through a communication path, and transmit line disconnection request data from the one communication processing device to the other communication processing device. The other communication processing device that has transmitted and received the line disconnection request data stops executing the communication protocol and generates a line disconnection state, and according to this line disconnection state, the one communication processing device
A communication protocol inspection system for inspecting an execution state of a communication protocol in a line disconnected state by executing an inspection program. 2. The communication processing apparatus according to claim 1, wherein the one communication processing device performs communication with the other communication processing device and executes a communication protocol to be tested for a line disconnection state. An inspection program processing unit for inspecting an execution state of a communication protocol in a line disconnection state in a target communication protocol processing unit, and transmitting line disconnection request data to the other communication processing device. 2. The communication protocol inspection system according to 1. 3. A communication protocol processing unit that executes communication with the one communication processing device and stops execution of the communication protocol under control of generating a line disconnection state, A reception data identification unit for identifying reception of the line disconnection request data from one of the communication processing devices, and when the reception data identification unit identifies the reception of the line disconnection request data, the communication control unit controls the communication protocol processing unit and performs communication. The communication protocol inspection system according to claim 1, further comprising: a line disconnection state control unit that controls to stop the execution of the protocol and generate a line disconnection state. 4. One and the other communication processing devices execute a communication protocol to perform a line connection through a communication path, and transmit the line disconnection request data and the line disconnection time data from the one communication processing device to the other. The other communication processing device that has transmitted the line disconnection request data and the line disconnection time data to the communication processing device stops the execution of the communication protocol within the time specified by the line disconnection time data, and disconnects the line. Is generated, and the one communication processing device is
The execution state of the communication protocol in the line disconnected state is checked by executing the inspection program, and the execution state of the communication protocol in the line normal state after the lapse of time is checked by executing the inspection program. Communication protocol inspection system. 5. The communication to be inspected, wherein the one communication processing device performs communication with the other communication processing device and executes a communication protocol in a line disconnected state or a line normal state within a time or after a lapse of time. A protocol processing unit, and inspects the communication protocol execution state in the line disconnection state or the line normal state in the inspection target communication protocol processing unit, and transmits line disconnection request data and line disconnection time data to the other communication processing device. The communication protocol inspection system according to claim 4, further comprising: an inspection program processing unit that sends the inspection program. 6. The other communication processing device executes communication with one communication processing device, stops execution of a communication protocol by controlling occurrence of a line disconnection state, and changes the line disconnection state. A communication protocol processing unit that executes a communication protocol in a line normal state when the generated control stops; a reception data identification unit that identifies reception of line disconnection request data and line disconnection time data from one communication processing device; A timer control unit that measures the line disconnection time based on the line disconnection time data from the reception data identification unit, and when the reception data identification unit identifies the reception of the line disconnection request data, the timer control unit measures the time. Within the time, the communication protocol processing unit is controlled to stop the execution of the communication protocol to generate the line disconnection state, and to execute the communication protocol in the line normal state after the lapse of time. Communication protocol test system of claim 4, wherein further comprising control and line disconnection state control section for, the that. 7. As the execution stop in the communication protocol processing unit, a task of a data processing unit in the execution of the communication protocol is transited, or a transition is made to a suspend state in which the process of the process being executed is temporarily stopped. The communication protocol inspection system according to claim 1, wherein each control is performed. 8. One and the other communication processing devices execute a communication protocol to perform a line connection through a communication path, and send line disconnection request data from the one communication processing device to the other communication processing device. The other communication processing device that has transmitted and received the line disconnection request data stops executing the communication protocol and generates a line disconnection state, and according to this line disconnection state, the one communication processing device
An information recording medium characterized by recording a control program for inspecting an execution state of a communication protocol in a line disconnected state by executing an inspection program. 9. One and the other communication processing devices execute a communication protocol to perform a line connection through a communication path, and transmit line disconnection request data and line disconnection time data from the one communication processing device to the other. The other communication processing device that has transmitted the line disconnection request data and the line disconnection time data to the communication processing device stops the execution of the communication protocol within the time specified by the line disconnection time data, and disconnects the line. Is generated, and the one communication processing device is
A control program for checking the execution state of the communication protocol in the line disconnected state by executing the check program, and for checking the execution state of the communication protocol in the line normal state after the lapse of time by executing the check program. An information recording medium characterized in that: