JP3080034B2 - Network communication system and method, network terminal device, information storage medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a network management system in which at least one network management device and a plurality of network terminal devices are connected by a communication network, and the network management device and the network terminal device communicate with each other via the communication network. network communication systems and methods for communications, and network terminal.

[0002]

2. Description of the Related Art Conventionally, a network communication system in which a plurality of network terminal devices are connected to a single network management device via a communication network has been used for a client server system or the like.

For example, SNMP is used as a management protocol.
In a network communication system employing (Simple Network Management Protocol), each of a plurality of network terminal devices executes various processing operations in a stand-alone manner. Therefore, when the network management device transmits polling data to each of the plurality of network terminal devices at a predetermined timing, each of the plurality of network terminal devices generates management data indicating its own various states, and transmits this to the data. The data is attached to the received polling data and transmitted to the network management device.

[0004] Since the management data of each of the plurality of network terminal devices is collected by one network management device, this network management device can recognize and manage the current various states of the plurality of network terminal devices. it can.

For example, in a network communication system disclosed in Japanese Patent Application Laid-Open No. Hei 8-242229, when a network management device transmits polling data to each of a plurality of network terminal devices, the network management device stores the network data stored at that time. The management data of the terminal device is added to the polling data. Then, the network terminal device compares the management data of the received polling data with the current management data of the network terminal device, and adds the latest management data to the polling data only when the difference is different, and transmits the data to the network management device. .

In the network communication system disclosed in Japanese Patent Laid-Open Publication No. Hei 5-347627, when a network management device transmits polling data to each of a plurality of network terminal devices, the plurality of network terminal devices determine whether there is a state change. Is added to the polling data and the data is transmitted to the network management device. Therefore, the network management device collects the management data only from the network terminal device whose status has changed.

In the network communication system disclosed in Japanese Patent Application Laid-Open No. 6-197162, a plurality of LANs
(Local Area Network) connected WAN (Wide
Area Network) is used as the communication network, and the network management device differs from the network terminal device in L
Connected to AN. Therefore, the LAN to which the network management device and the network terminal device are connected and the WAN are connected by IWU (Internet Working Unit), and the polling of the network terminal device is performed by the IWU in LAN units.
U, and the network management device collects polling data accumulated in the IWUs of a plurality of LANs via the IWU connected to the LAN.

In a network communication system in which a communication network is formed in the form of a token ring, the token data circulates through the ring-shaped communication network, so that the network terminal device adds management data to the token data arriving at its own location. Is given.

[0009]

In the above network communication system, when the network management device transmits polling data to each of the plurality of network terminal devices, each of the plurality of network terminal devices transmits its own management data. Since the data is transmitted to the network management device by being added to the polling data, one network management device can manage various states of a plurality of network terminal devices.

However, if one network management device executes data transmission and reception of polling data to each of a plurality of network terminal devices as described above, the load of this data communication is excessive and time is required. .
For example, when the number of network terminal devices is N, the network management device executes data transmission and reception of polling data up to N times, respectively, and thus needs to execute data communication of polling data up to 2N times.

For example, in the case of the network communication system disclosed in Japanese Patent Application Laid-Open No. 8-242229, only when the management data is different from the management data stored in the network management device, the network terminal device sends the management data to the network management device. By transmitting, the burden of data communication is reduced. However, even in this case, it is necessary for the network management device to transmit the polling data to all of the N network terminal devices, and there is a high possibility that the network management device receives the polling data from many network terminal devices depending on the situation.

In the case of the network communication system disclosed in Japanese Patent Application Laid-Open No. Hei 5-347627, only the network terminal device whose status has changed transmits management data to the network management device. Executing the data transmission and the data reception of the polling data to all of the terminal devices does not change.

In the network communication system disclosed in Japanese Patent Application Laid-Open No. 6-197162, a plurality of LANs
Although the burden of data communication on the WAN is reduced by collecting management data of the network terminal device via the IWU, it is necessary to execute polling data communication inside the LAN as in the past, Overall, the burden of data communication is not reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in a network communication system in which at least one network management device and a plurality of network terminal devices are connected to a communication network, the network management device includes a plurality of network management devices. network communication system and method reduces the burden of collecting management data from the network terminal device, and to provide a network terminal device.

[0015]

In a network communication system according to the present invention, at least one network management device and a plurality of network terminal devices are connected by a communication network, and the network management device and the network terminal device are connected to each other. In a network communication system that performs data communication with each other via the communication network, the network management device includes: a polling transmission unit that transmits data to one of the network terminal devices that is set in advance; Polling receiving means for receiving one polling data from one of the network terminal devices, and terminal managing means for individually recognizing a plurality of management data from one polling data, the network terminal device comprises: The thing And polling receiving means for receiving data polling data from the one or the network management device of the network terminal device that is set in a management generating means for generating management data indicating the various states of its own,
Data providing means for providing the generated management data to the polling data received, and polling transmitting means for transmitting the polling data with the management data to one of the network terminal devices or the network management device set in advance. And a route table in which address data in the communication network of a subsequent device for transmitting the polling data is stored, and when the arrival of the polling timing is detected, the route table stores the address data. To read and transmit the polling data ,
In the invention according to claims 1 and 3, the polling data
The network terminal device through which
If the route table is set in multiple stages,
Set the number of passes to the polling data
Read the number of passes from the polling data received
In the invention according to claims 2 and 3,
The network terminal device receives the data from the port.
Referring to the recorded contents of the ring data,
Data is granted, the management data
Do not grant again.

According to a network communication method of the present invention, at least one network management device and a plurality of network terminal devices are connected by a communication network,
In a network communication system in which the network management device and the network terminal device communicate data with each other via the communication network, the network management device transmits polling data to one of the preset network terminal devices. The network terminal device stores address data in the communication network of a subsequent device that transmits the polling data, and transmits polling data from one of the network terminal devices set in advance or the network management device. Receiving data, generating management data indicating its own various states, attaching the generated polling data to the received polling data, and assigning the polling data to which the management data has been assigned to the network of the address data stored in the route table. Data transmission to one of the network terminal devices or the network management device, the network management device receives data of one polling data from one of the network terminal devices set in advance, and performs a plurality of managements from the one polling data. Although the data are individually recognized , the invention according to claims 4 and 6
The network terminal through which signaling data passes up to a plurality of times
The apparatus has the route table set in a plurality of stages.
The number of passes to the polling data to be transmitted.
Set and pass from the polling data received
The destination determined by reading the number of times, according to claim 5, 6
In the invention, the network terminal device receives data.
Refer to the recorded contents of the polling data
After confirming that the management data has been assigned,
Do not add management data again.

[0017]

The network terminal device of the present invention is connected to a network terminal device and another network terminal device via a communication network, and performs data communication with the network terminal device and the network terminal device via the communication network. A polling receiving unit for receiving polling data from one of the network terminal devices set in advance or the network management device; a management generating unit for generating management data indicating various states of the network terminal device; Data providing means for providing the received management data to the received polling data, and transmitting the polling data provided with the management data to one of the previously set network terminal devices or the network management device. Polling transmitting means, and a route table in which address data in the communication network of a subsequent device for transmitting the polling data is stored, and when the arrival of the polling timing is detected, Although the transmission of the polling data data by reading the address data, in the invention according to claim 7 and 9, wherein Po
The route table corresponds to multiple passes of ring data.
Cables are set in multiple stages, and
Set the number of passes to the
Read the number of passes from the polling data to determine the destination
In the invention according to claims 8 and 9, data is received.
In front of itself by referring to the recorded contents of the polling data
Confirm that the management data has been added
Do not re-add the physical data.

Therefore, when the polling transmitting means of the network management device transmits the polling data to one of the network terminal devices set in advance, the network terminal device receives the polling data by the polling receiving device and manages the polling data. The generating means generates management data indicating its own various states. This management data is given to the polling data by the data giving means,
The polling data provided with the management data is transmitted to one of the network terminal devices set in advance.

Similarly, this network terminal device adds management data to the polling data and transmits the data to the subsequent network terminal device. Thus, the polling data is sequentially transmitted from all the network terminal devices. Then, when the management data of all the network terminal devices is added to the polling data, the polling data is transmitted from the polling transmission unit of the network terminal device to the polling reception unit of the network management device.

This network management device individually recognizes a plurality of management data from one polling data received by the terminal management means, so that it is possible to collect and manage all the management data of the plurality of network terminal devices. it can.

The network management device transmits one piece of polling data only to the first one network terminal device, and transfers one piece of polling data provided with management data of all network terminal devices to the last one network terminal device. Since data is received only from the network terminal, it is not necessary for the network management device to transmit and receive polling data to all network terminal devices.

The network communication system according to the present invention may be a system in which at least one network management device and a plurality of network terminal devices are connected via a communication network as described above. For example, a client server system, etc. Tolerate. For example, a host computer or a server unit is allowed as a network management device, a client unit or the like is allowed as a network terminal device, and a LAN or a WAN is allowed as a communication network, for example.

Further, various means referred to in the present invention may be formed so as to realize their functions. For example, dedicated hardware, a computer in which an appropriate program is implemented by software, a combination thereof, and the like are used. Allow. As a method of setting in advance the network terminal device and the network management device at the subsequent stage for transmitting polling data to the network management device and the network terminal device, for example, registering the address of the subsequent device in the communication network in the data table To be allowed.

[0025]

Further, information storage medium of the present invention, at least one network management system and other network terminal devices connected to it freely software reading a computer of the network terminal device communicating data with each other stored by a communication network Receiving the polling data from one of the network terminal devices set in advance or the network management device, generating management data indicating various states of the information storage medium, and generating the management data. To the received polling data, constructing a route table storing the address data in the communication network of the subsequent device for transmitting the polling data, the polling data with the management data root That data transmitted to one or the network management device of the network terminal device of the address data stored in Buru, is stored a program for causing the computer to execute
Cage, in the invention according to claim 10, 12, wherein Poli
Route table in response to multiple passes of
Setting multiple levels, and the
Set the number of passes in the
Read the number of passes from the polling data and send to
Is also stored, and according to claims 11 and 12,
In the described invention, the polling data received
The management data of its own is given by referring to the recorded contents of
Check that the management data is not
That is also stored.

Accordingly, when the computer of the network management device and the network communication device reads the program of the information storage medium as described above and executes the corresponding processing operation, the network management device and the network terminal device can perform the above-described operations. It functions as the network communication system of the present invention.

That is, the network management device transmits one piece of polling data only to the first one network terminal device, and transfers one piece of polling data to which the management data of all network terminal devices is added to the last one network device. Since data is received only from the terminal devices, it is not necessary for the network management device to execute data transmission and data reception of polling data to all network terminal devices.

The information storage medium referred to in the present invention may be any medium in which a program for causing a computer to execute various processes is stored in advance. For example, the information storage medium may be fixedly installed in a system including a computer. R connected
OM (lead only memory) and HDD (hard disc)
Drive), CD (Compact Disc) -ROM or FD that is removably loaded into a system that includes a computer
(Floppy Disc), etc. are allowed.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing the entire structure of the network communication system according to the present embodiment.
Is a block diagram showing the physical structure of the network management device, FIG. 3 is a schematic diagram showing the logical structure of the network management device and the network communication device, FIG. 4 is a schematic diagram showing the storage structure of the route table, and FIG. It is a schematic diagram which shows the data content of data.

As shown in FIG. 1, a network communication system 1 according to the present embodiment includes one network management device 2 and five network terminal devices 3A to 3E. 3A to 3E are connected by a communication network 4.

As shown in FIG. 2, the network management device 2 has a CPU (Central
Processing Unit) 101, and this CP
U101 is connected to the ROM 10 by the bus line 102.
3. RAM (Random Access Memory) 104, HDD
105, FD 106 loaded FDD (FD Drive)
107, a CD drive 109 in which a CD-ROM 108 is loaded, a keyboard 110, a mouse 111, a display 112, a communication I / F (Interface) 113, and the like are connected.

The communication network 4 is connected to the communication I / F 113, and the network terminal devices 3A to 3E are connected to the communication network 4.
The hardware configuration of these network terminal devices 3 is the same as that of the network management device 2, so that the description is omitted here.

In the network communication system 1 of the present embodiment, the ROM 103, the RAM 104, the H
DD105, FD106, CD-ROM108
And the like correspond to information storage media in which various programs and various data necessary for various operations of the devices 2 and 3 are stored as software.

For example, a control program for causing the CPU 101 to execute various processing operations is written in the FD 106 or the CD-ROM 108 in advance. Such software is installed in the HDD 105 in advance, and when the devices 2 and 3 are started, the RA
The data is copied to M104 and read by the CPU 101.

Similarly, when the devices 2 and 3 are activated, the H
As software of the setting data copied from the DD 105 to the RAM 104, a route table 5 is constructed in the devices 2 and 3, and the route table 5 has the devices 2, 3A to 3A as shown in FIG. Devices 3A to 3E in which the 3E performs data communication of polling data,
2 stores address data in the communication network 4.

As described above, the CPU 101 reads appropriate setting data and control programs and executes various processing operations, whereby the network management device 2 and the network terminal device 3 of the present embodiment have various functions. Have been realized as various means. That is, as such various means, the network management device 2 logically includes a polling transmission unit 10, a polling reception unit 11, a terminal management unit 12, and the like. Means 13, management generation means 14, data provision means 15, polling transmission means 1
6, etc. are logically provided.

The polling transmission means 10 of the network management apparatus 2 sets the polling data in advance by the CPU 101 executing a predetermined processing operation in accordance with the control program and setting data stored in the RAM 104 and the like. Said network terminal device 3A ~
Data is transmitted to one of the 3Es.

More specifically, when the CPU 101 of the network management device 2 detects the arrival of the polling timing set in advance by an internal clock, for example, the CPU 101 reads the address of the network terminal device 3A from the route table 5 of the RAM 104. The data is read, and the polling data corresponding to the data is read from the communication I / F 113.
Transmits data to the network terminal device 3A via the communication network 4. As described above, the polling data transmitted from the network management device 2 to the first network terminal device 3A is as shown in FIG.
As shown in (1), the address information includes the address data of the network terminal device 3A as the transmission destination and the network management device 2 as the transmission source.

The polling receiving means 13 of the network terminal device 3 executes the predetermined processing operation by the CPU 101 corresponding to the control program stored in the RAM 104 or the like, so that the network terminal device set in advance is Polling data is received from one of the network management apparatuses 2 or 3A to 3E.

More specifically, in the first network terminal device 3A, when the communication I / F 113 receives polling data from the network management device 2 via the communication network 4, the polling data is transmitted to the first network terminal device 3A. The CPU 101 temporarily stores the data in a work area of the RAM 104 or the like. The second to fifth network terminal devices 3B to 3E transmit polling data from the preceding network terminal devices 3A to 3D via the communication network 4 to the communication I / F1.
When the data is received by the CPU 13, the polling data is temporarily stored in the work area of the RAM 104 by the CPU 101.

In this embodiment, the polling data is returned from the first network terminal device 3A to the network management device 2, so that the first network terminal device 3A is connected to the second network terminal device 3A. It has a two-stage route table 5 in which address data of the terminal device 3B and the network management device 2 are stored.

Similarly, when the CPU 101 executes a predetermined processing operation in accordance with the control program stored in the RAM 104 or the like, the management generation means 14 of the network terminal devices 3A to 3E can execute its own various operations. The management data indicating the status is generated, and the data
Adds the generated management data to the polling data that has received the data.

More specifically, the network terminal devices 3A to 3E sequentially add their own management data to the polling data received as shown in FIG.
Further, the address data of the transmission source set in the polling data is overwritten with its own address data, and the address data of the transmission destination is overwritten with the address data set in the route table 5.

The polling transmission means 16 of each of the network terminal devices 3A to 3E is connected to the network management device 2
As in the case of the polling transmission means 10, the polling data to which the management data is added is transmitted to one of the previously set network terminal devices 3A to 3E or the network management device 2.

More specifically, since the address data of the transmission destination is read from the route table 5 and set as polling data as described above, the polling data corresponds to the set address data at the subsequent stage. Is transmitted to the devices 3B to 3E and 2 described above.

Since the polling data to which the management data is added by the fifth network terminal device 3E is transmitted to the first network terminal device 3A as described above, the first network terminal device 3A
When polling data is transmitted from the fifth network terminal device 3E, as shown in FIG. 3, the polling data is transmitted to the network management device 2 without adding management data again.

The polling receiving means 11 of the network management device 2 is provided with the network terminal devices 3A to 3E.
The polling data is received from the first network terminal device 3A set in advance, similarly to the polling receiving means 13 of FIG. More specifically, when the communication I / F 113 receives polling data from the network terminal device 3A via the communication network 4, the CPU 101 temporarily stores the polling data in a work area or the like of the RAM 104.

The terminal management means 12 of the network management device 2 converts management data of a plurality of network terminal devices 3A to 3E from one polling data received from the first network terminal device 3A as described above. Recognize individually. More specifically, the RAM 10
4, a plurality of management data are individually extracted from the polling data temporarily stored in the work area or the like based on an identifier such as a header.

The various means as described above are realized by using hardware such as the keyboard 110 and the display 112 as necessary, and the main means is the RAM.
104 corresponding to the software written in
This is realized by the operation of the PU 101.

For example, the software of the network management device 2 sets the address data stored in the route table 5 as polling data, and sets the polling data to the communication I / F at a predetermined timing.
Transmitting data from the first network terminal device 3A to the first network terminal device 3A via the communication network 4; and polling data received by the communication I / F 113 from the first network terminal device 3A via the communication network 4 Is stored in the work area of the RAM 104, and the management data of the plurality of network terminal devices 3A to 3E are individually recognized from the stored polling data.
RA program as a control program for causing
It is stored in an information storage medium such as M104.

The software of the network terminal device 3 stores polling data received by the communication I / F 113 via the communication network 4 in the work area of the RAM 104 and manages various states of its own. Generating data, adding the generated management data to the polling data that has been received, updating the address data of the source and destination of the polling data, and transmitting the polling data to the communication I.
/ F 113 to control the RAM 104 as a control program for causing the CPU 101 or the like to execute processing operations such as transmitting data to the next-stage devices 3A to 3E and 2.
And the like.

A network communication method using the network communication system 11 of the present embodiment in the above configuration will be described below. First, usually, a plurality of network terminal devices 3A to 3E individually execute stand-alone processing operations, and accumulate management data in the RAM 104 or the like corresponding to the processing contents. Then, for example, upon detecting the arrival of a preset time, the network management device 2 starts a polling operation for collecting management data of the network terminal devices 3A to 3E.

In that case, the network management device 2
By referring to the route table 5 stored in the AM 104 or the like, it recognizes that the transmission destination is the first network terminal device 3A, and transmits polling data in which address data of the transmission source and the transmission destination are set to the communication I / O. F113 via the communication network 4 to the first network terminal device 3A
Send data to

This first network terminal 3A
When polling data is received from the network management device 2 via the communication network 4 by the communication I / F 113, its own management data is added to this polling data, and the polling data is transmitted to the transmission destination with reference to the route table 5. Overwrite the original address data.

Similarly, the polling data is sequentially transmitted from the first network terminal device 3A to the fifth network terminal device 3E, and the management data is transmitted to each of the second to fifth network management devices 3B to 3E. Granted. In this way, all the network terminal devices 3A-
The polling data provided with the management data of 3E is returned to the first network terminal device 3A.

This first network terminal device 3A
Checking the recorded content of the received polling data and confirming that its own management data has been added,
The polling data is transmitted to the network management device 2 by referring to the second row of the route table 5 without adding the management data again.

As described above, one piece of polling data received by the network management device 2 is provided with all the management data of the plurality of network terminal devices 3A to 3E as described above. Extract multiple management data from polling data individually.

In the network communication system 1 of the present invention, as described above, the network management device 2 can collect all management data of the plurality of network terminal devices 3A to 3E. However, the network management device 2
Only needs to transmit the polling data to the first one of the network terminals 3A and to receive the polling data only from the last one of the network terminals 3A.
Since it is not necessary to individually execute polling data transmission and data reception for each of the Es, the burden of data communication on the network management device 2 is reduced.

The present invention is not limited to the above-described embodiment, and allows various modifications without departing from the scope of the invention. For example, in the above embodiment, the first network terminal device 3A receives polling data from the network management device 2 and transmits polling data to the network management device 2 as an example.
It is also possible to transmit polling data from the network management device 2 to the first network terminal device 3A and transmit polling data from the fifth network terminal device 3E to the network management device 2.

In the above embodiment, since the first network terminal device 3A receives and transmits polling data to and from the network management device 2, only the first network terminal device 3A sets the route table in two stages. However, as described above, even if the data communication with the network management device 2 is not performed as described above, the route table is set in a plurality of stages in the network terminal device 3 through which the polling data passes a plurality of times by setting the transmission route. Preferably.

However, if the number of passes is three or more and the route table is three or more, it is expected that it will be difficult to determine the destination after the second time.
It is preferable to set the number of passes in the polling data transmitted by the network terminal device 3 having a large number of passes, and to determine the transmission destination by reading the number of passes from the polling data received.

In the above embodiment, only one polling data transmission route has been set for a plurality of network terminal devices 3. However, for example, a second and third transmission route and a transmission destination are set. In addition, it is possible to prevent the data transmission of the polling data from being interrupted even if one of the network terminal devices 3 goes down.

Further, in the above-described embodiment, the various means of the network management device 2 and the network terminal device 3 are realized by the operation of the CPU 101 according to the control program stored as software in the RAM 104 or the like. However, it is also possible to form each of these various means as unique hardware, and it is also possible to store a part of the various means as software in the RAM 104 or the like and form a part as hardware.

In the above embodiment, when the network management device 2 or the network terminal device 3 is started, the software stored in the HDD 105 is copied to the RAM 104, and the CPU 101 reads the software stored in the RAM 104 in this manner. Assuming that such software is stored in the HDD 105 and the CP
It is also possible for the U101 to use it or to write it fixedly in the ROM 103 in advance.

Further, software is written in the FD 106 or CD-ROM 108 which is an information storage medium which can be handled alone, and the FD 106 and the RAM 104
It is also possible to install software in the FD1 or the like without executing such an installation.
It is also possible for the CPU 101 to directly read the software from 06 or the like and execute the processing operation.

That is, when various means of the network communication system 1 of the present invention are realized by software, the software only needs to be in a state where the CPU 101 can read and execute the corresponding operation. It is also possible to form a control program for realizing the various means as described above by a combination of a plurality of software. In this case, the information storage medium as a single product includes the network communication system 1 of the present invention. It is sufficient to store only the minimum necessary software for realizing the above.

For example, the network management device 2 on which an existing operating system is mounted has a CD-R
In a case where application software is provided by an information storage medium such as the OM 108, software for implementing various units of the network communication system 1 of the present invention is implemented by a combination of application software and an operating system, and thus depends on the operating system. The software of the part to be performed can be omitted from the application software of the information storage medium.

The method of supplying the software described on the information storage medium to the CPU 101 is not limited to loading the information storage medium directly into the network management apparatus 2. For example, it is also possible to store the above software in an information storage medium of a host computer, connect the host computer to a terminal computer via a communication network 4, and supply the software from the host computer to the terminal computer by data communication. It is.

[0070]

[0071]

Since the present invention is configured as described above, it has the following effects.

[0072] The network communication system of the present invention according to claim 1 to 3. These are connected by at least one of the network management device and a plurality of network terminal devices and communication network, and the network management device and the network terminal device In a network communication system that performs data communication with each other via the communication network, the network management device includes a polling transmission unit that transmits polling data to one of the preset network terminal devices, Polling receiving means for receiving one piece of polling data from one of the network terminal devices, and terminal managing means for individually recognizing a plurality of pieces of management data from one piece of polling data. Is Polling receiving means for receiving polling data from one of the network terminal apparatuses set in advance or the network management apparatus, management generating means for generating management data indicating various states of the apparatus itself, and data generated from the generated management data. Data assigning means for assigning to the received polling data, polling sending means for sending the polling data to which the management data has been assigned to one of the network terminal devices or the network management apparatus set in advance, A route table in which address data of the subsequent device for transmission in the communication network is stored, and when the arrival of the polling timing is detected, the address data is read from the route table to read the polling data. Data transmission
In the invention according to claims 1 and 3, the polling data
Said network terminal device through which data passes up to several times
The route table is set in multiple stages,
Set the number of passes to the polling data to be transmitted
And the number of passes from the polling data received
Determining the destination by reading, originating in claim 2, 3
In the description, the network terminal device receives data.
Referring to the recorded contents of the polling data,
After confirming that management data has been assigned,
By not reassigning data , the network management device can collect management data of a plurality of network terminals, but it is not necessary to individually communicate polling data with the plurality of network terminals to perform this. Instead, it is only necessary to transmit one piece of polling data to one network terminal device and receive one piece of polling data from one network terminal device, so that the burden of data communication on the network management device can be reduced.

According to a fourth aspect of the present invention, there is provided the network communication method, wherein at least one network management device and a plurality of network terminal devices are connected by a communication network, and the network management device and the network terminal device are connected to each other. In a network communication system in which data communication with each other is performed via the communication network, the network management device transmits polling data to one of the network terminal devices set in advance, and the network terminal device transmits the polling data. Address data in the communication network of a subsequent device for transmitting data is stored, and receives polling data from one of the network terminal devices or the network management device set in advance,
It generates management data indicating its own various states and adds it to the received polling data, and sends the polling data with the management data to one of the network terminal devices or the network of the address data stored in the route table. While transmitting data to a management device, the network management device receives one piece of polling data from one of the network terminal devices set in advance, and individually recognizes a plurality of management data from the one piece of polling data . Claims 4 and 6
Before the polling data passes through multiple times,
The network terminal device has a plurality of route tables.
The polling data for data transmission
Data, set the number of passes, and
The destination determined by reading the number of times passing from Gudeta, 請
In the inventions according to claims 5 and 6, the network terminal device is provided.
Is the recorded content of the polling data received.
That the management data of its own is given by referring to
By confirming that the management data is not added again , the network management device can collect management data of a plurality of network terminal devices, but in order to execute this, individually collect the plurality of network terminal devices and polling data. There is no need for data communication, so one polling data can be sent to one network terminal device and one polling data can be received from one network terminal device, reducing the data communication load on the network management device. can do.

[0074]

[0075] The network terminal device of the invention according to claim 7-9, which is connected to a network terminal and another network terminal device by a communication network, the communication network to these network terminal device and said network terminal device A network terminal device that performs data communication with each other via a network, generates polling reception means for receiving polling data from one of the network terminal devices set in advance or the network management device, and generates management data indicating its various states. Management generating means for performing the processing, a data providing means for providing the generated management data to the polling data received, and one of the network terminal apparatuses or the network management in which the polling data provided with the management data is preset. And a route table storing address data in the communication network of a subsequent device for transmitting the polling data, and detecting the arrival of the polling timing. Then the the polling data data transmission by reading the address data from the route table, but of claim 7, 9
According to the invention, it is possible to cope with the passage of the polling data a plurality of times.
The route table is set in multiple stages,
Set the number of passes to the polling data to be transmitted
And the number of passes from the polling data received
The destination is determined by reading the data, and the destination according to claim 8 or 9 is determined.
In the description, the data received in the record of the polling data
That the management data of its own
By not applying the control data to check the door again, for example, when the network terminal device by connecting the nets <br/> work management device to form a network communication system of the present invention, the network management device includes a plurality of The management data of the network terminal device can be collected, but it is not necessary to individually communicate polling data with a plurality of network terminal devices in order to execute this, and one polling data is transmitted to one network terminal device. Since it is only necessary to transmit and receive one polling data from one network terminal device, it is possible to reduce the load of data communication on the network management device.

[0076]

The information storage medium according to the tenth to twelfth aspects of the present invention is readable by a computer of a network terminal device connected to at least one network management device and another network terminal device via a communication network and mutually communicating data. Receiving the polling data from one of the network terminal devices set in advance or the network management device, generating management data indicating various states of the own device, and generating the data. Adding the management data to the received polling data, constructing a route table storing address data in the communication network of a subsequent device for transmitting the polling data, and providing the management data. Poling de To data transmission the data to one or the network management device of the network terminal device of the address data stored in the route table, which is stored a program for causing the computer to perform, according to claim 10, Departure No. 12
In the above description, the polling data corresponds to multiple passes.
Setting the route table in multiple stages by using
Specify the number of passes for the polling data to be transmitted.
And the number of passes from the polling data received
To read and determine the destination, is also stored
According to the eleventh and twelfth aspects of the present invention, before data is received.
Refer to the recorded contents of the polling data and
After confirming that the management data has been
It does not confer over data again, by being also stored, the program information storage medium of the present invention to read in a computer network terminal, for example, to connect the network management device to the network terminal device network When a communication system is formed, the network management device can collect management data of a plurality of network terminals, but it is not necessary to individually communicate polling data with the plurality of network terminals to perform this. Since it is only necessary to transmit one piece of polling data to one network terminal device and receive one piece of polling data from one network terminal device, the burden of data communication on the network management device can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an overall structure of a network communication system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a physical structure of a network management device and a network terminal device.

FIG. 3 is a schematic diagram illustrating a logical structure of a network management device and a network terminal device.

FIG. 4 is a schematic diagram showing setting contents of a route table.

FIG. 5 is a schematic diagram showing setting contents of polling data.

[Explanation of symbols]

 Reference Signs List 1 network communication system 2 network management device 3 network terminal device 4 communication network 5 route table 10 polling transmission means 11 polling reception means 12 terminal management means 13 polling reception means 14 management generation means 15 data addition means 16 polling transmission means 101 computer CPU 102 Bus line 103 ROM as an information storage medium 104 RAM as an information storage medium 105 HDD as an information storage medium FD 107 FDD 108 as an information storage medium CD-ROM 109 as an information storage medium CD drive 110 Keyboard 111 Mouse 112 Display 113 Communication I / F 114 Connector

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04L 12/28 H04L 12/24 H04L 12/26 JICST file (JOIS)

Claims (12)

(57) [Claims] 1. A network in which at least one network management device and a plurality of network terminal devices are connected by a communication network, and the network management device and the network terminal device perform data communication with each other via the communication network. In the communication system, the network management device transmits polling data to one of the network terminal devices set in advance, and a polling transmission unit, and transmits one polling data from one of the network terminal devices set in advance. Polling receiving means for receiving data, and terminal management means for individually recognizing a plurality of management data from one polling data, the network terminal device, one of the previously set network terminal device or Said Polling receiving means for receiving polling data from the network management apparatus, management generating means for generating management data indicating its own various states, data providing means for providing the generated management data to the received polling data, Polling transmission means for transmitting data to one of the network terminal devices or the network management device which has been set in advance, to which polling data to which management data has been added, and an address in the communication network of a subsequent device for transmitting the polling data. a route table in which the data is stored, and includes a said polling data reads the address data from said route table and to detect the arrival of the polling timing and data transmission, through the polling data to a plurality of times The net to
In the work terminal device, the route table is set in a plurality of stages.
The polling data to be transmitted
The polling data for which the number of times has been set and data has been received
A network communication system characterized in that a transmission destination is determined by reading the number of passages from the network. 2. A network in which at least one network management device and a plurality of network terminal devices are connected by a communication network, and wherein the network management device and the network terminal device perform data communication with each other via the communication network. In the communication system, the network management device transmits polling data to one of the network terminal devices set in advance, and a polling transmission unit, and transmits one polling data from one of the network terminal devices set in advance. Polling receiving means for receiving data, and terminal management means for individually recognizing a plurality of management data from one polling data, the network terminal device, one of the previously set network terminal device or Said Polling receiving means for receiving polling data from the network management apparatus, management generating means for generating management data indicating its own various states, data providing means for providing the generated management data to the received polling data, Polling transmission means for transmitting data to one of the network terminal devices or the network management device which has been set in advance, to which polling data to which management data has been added, and an address in the communication network of a subsequent device for transmitting the polling data. a route table in which the data is stored, and includes a said come to transmit the polling data reads the address data from said route table and to detect data polling timing, the network terminal device, the data Said Poe was Shin
Referring to the recorded contents of the ring data,
Data is granted, the management data
A network communication system which is not re-assigned . 3. A network in which at least one network management device and a plurality of network terminal devices are connected by a communication network, and wherein the network management device and the network terminal device perform data communication with each other via the communication network. In the communication system, the network management device transmits polling data to one of the network terminal devices set in advance, and a polling transmission unit, and transmits one polling data from one of the network terminal devices set in advance. Polling receiving means for receiving data, and terminal management means for individually recognizing a plurality of management data from one polling data, the network terminal device, one of the previously set network terminal device or Said Polling receiving means for receiving polling data from the network management apparatus, management generating means for generating management data indicating its own various states, data providing means for providing the generated management data to the received polling data, Polling transmission means for transmitting data to one of the network terminal devices or the network management device which has been set in advance, to which polling data to which management data has been added, and an address in the communication network of a subsequent device for transmitting the polling data. a route table in which the data is stored, and includes a said polling data reads the address data from said route table and to detect the arrival of the polling timing and data transmission, through the polling data to a plurality of times The net to
In the work terminal device, the route table is set in a plurality of stages.
The polling data to be transmitted
The polling data for which the number of times has been set and data has been received
The network terminal device determines the transmission destination by reading the number of passages from the
Referring to the recorded contents of the ring data,
Data is granted, the management data
A network communication system which is not re-assigned . 4. A network in which at least one network management device and a plurality of network terminal devices are connected by a communication network, and wherein the network management device and the network terminal device perform data communication with each other via the communication network. In the communication system, the network management device transmits polling data to one of the network terminal devices set in advance, and the network terminal device transmits data of the polling data to a subsequent device in the communication network. The address data is stored, the polling data is received from one of the network terminal devices set in advance or the network management device, and the management data indicating various states of the device is generated and the polling data is received. Granted to over data, and the data transmits the polling data assigned with the management data to one or the network management device of the network terminal device of the address data stored in the route table, passing the polling data to a plurality of times The net
In the work terminal device, the route table is set in a plurality of stages.
It is, through the polling data to the data transmission
The polling data for which the number of times has been set and data has been received
The network management device receives one polling data from one of the network terminal devices set in advance and reads a plurality of management data from the one polling data individually. A network communication method, characterized in that: 5. A network in which at least one network management device and a plurality of network terminal devices are connected by a communication network, and wherein the network management device and the network terminal device perform data communication with each other via the communication network. In the communication system, the network management device transmits polling data to one of the network terminal devices set in advance, and the network terminal device transmits data of the polling data to a subsequent device in the communication network. The address data is stored, the polling data is received from one of the network terminal devices set in advance or the network management device, and the management data indicating various states of the device is generated and the polling data is received. Granted to over data, and the data transmits the polling data assigned with the management data to one or the network management device of the network terminal device of the address data stored in the route table, the network terminal device, the data receiving Said po
Referring to the recorded contents of the ring data,
Data is granted, the management data
Without providing again, the network management device receives one piece of polling data from one of the network terminal devices set in advance, and individually recognizes a plurality of management data from the one piece of polling data. Network communication method to use. 6. A network in which at least one network management device and a plurality of network terminal devices are connected by a communication network, and wherein the network management device and the network terminal device perform data communication with each other via the communication network. In the communication system, the network management device transmits polling data to one of the network terminal devices set in advance, and the network terminal device transmits data of the polling data to a subsequent device in the communication network. The address data is stored, the polling data is received from one of the network terminal devices set in advance or the network management device, and the management data indicating various states of the device is generated and the polling data is received. Granted to over data, and the data transmits the polling data assigned with the management data to one or the network management device of the network terminal device of the address data stored in the route table, passing the polling data to a plurality of times The net
In the work terminal device, the route table is set in a plurality of stages.
The polling data to be transmitted
The polling data for which the number of times has been set and data has been received
The network terminal device determines the transmission destination by reading the number of passages from the
Referring to the recorded contents of the ring data,
Data is granted, the management data
Without providing again, the network management device receives one piece of polling data from one of the network terminal devices set in advance, and individually recognizes a plurality of management data from the one piece of polling data. Network communication method to use. 7. A network terminal device connected to a network terminal device and another network terminal device by a communication network and performing data communication with the network terminal device and the network terminal device via the communication network. Polling receiving means for receiving polling data from one of the network terminal apparatuses set in advance or the network management apparatus, management generating means for generating management data indicating various states of the apparatus itself, and data generated from the generated management data. Data assigning means for assigning to the received polling data, polling sending means for sending the polling data to which the management data has been assigned to one of the previously set network terminal devices or the network management device; A route table storing address data in the communication network of a device at a later stage for transmitting ring data, and when the arrival of the polling timing is detected, the address data is read from the route table. The polling data is transmitted, and the polling data is transmitted in response to a plurality of passages of the polling data.
When the data table is set in multiple stages,
Set the number of passes to the polling data
Read the number of passes from the polling data
A network terminal device for determining a transmission destination . 8. A network terminal device connected to a network terminal device and another network terminal device by a communication network and performing data communication with the network terminal device and the network terminal device via the communication network. Polling receiving means for receiving polling data from one of the network terminal apparatuses set in advance or the network management apparatus, management generating means for generating management data indicating various states of the apparatus itself, and data generated from the generated management data. Data assigning means for assigning to the received polling data, polling sending means for sending the polling data to which the management data has been assigned to one of the previously set network terminal devices or the network management device; A route table storing address data in the communication network of a device at a later stage for transmitting ring data, and when the arrival of the polling timing is detected, the address data is read from the route table. the polling data to the data transmission, see the recorded contents of the polling data data received
And confirm that the above management data is given
Then, the management data is not added again . 9. A network terminal device connected to a network terminal device and another network terminal device by a communication network, and performing data communication with the network terminal device and the network terminal device via the communication network. Polling receiving means for receiving polling data from one of the network terminal apparatuses set in advance or the network management apparatus, management generating means for generating management data indicating various states of the apparatus itself, and data generated from the generated management data. Data assigning means for assigning to the received polling data, polling sending means for sending the polling data to which the management data has been assigned to one of the previously set network terminal devices or the network management device; A route table storing address data in the communication network of a device at a later stage for transmitting ring data, and when the arrival of the polling timing is detected, the address data is read from the route table. The polling data is transmitted, and the polling data is transmitted in response to a plurality of passages of the polling data.
When the data table is set in multiple stages,
Set the number of passes to the polling data
Read the number of passes from the polling data
Determine the transmission destination and refer to the recorded contents of the polling data received.
And confirm that the above management data is given
Then, the management data is not added again . 10. An information storage medium in which computer readable software of a network terminal device that is connected to at least one network management device and another network terminal device via a communication network and that performs data communication with each other is stored. Receiving polling data from one of the network terminal devices set as described above or the network management device, generating management data indicating its own various states, and attaching the generated management data to the received polling data. Constructing a route table in which address data in the communication network of a subsequent device for transmitting the polling data is stored, and before storing the polling data with management data in the route table. That data transmitted to one or the network management device of the network terminal device of address data, said Le corresponding to the plurality of times of passing of the polling data
Set the number of pass tables in the polling data to be sent by setting the port table in multiple stages
The number of passes from the polling data received.
An information storage medium, which stores a program for causing the computer to execute reading and determining a transmission destination . 11. An information storage medium in which computer readable software of a network terminal device that is connected to at least one network management device and another network terminal device via a communication network and performs data communication with each other is stored. Receiving polling data from one of the network terminal devices set as described above or the network management device, generating management data indicating its own various states, and attaching the generated management data to the received polling data. Constructing a route table in which address data in the communication network of a subsequent device for transmitting the polling data is stored, and before storing the polling data with management data in the route table. That data transmitted to one or the network management device of the network terminal device address data, see the recorded contents of the polling data data received
And confirm that the above management data is given
An information storage medium, which stores a program for causing the computer to execute the step of not giving the management data again . 12. An information storage medium in which computer-readable software stored in a network terminal device connected to at least one network management device and another network terminal device via a communication network and performing data communication with each other is stored. Receiving polling data from one of the network terminal devices set as described above or the network management device, generating management data indicating various states of itself, and adding the generated management data to the received polling data. Constructing a route table in which address data in the communication network of a subsequent device for transmitting the polling data is stored, and before storing polling data with management data in the route table. That data transmitted to one or the network management device of the network terminal device of address data, said Le corresponding to the plurality of times of passing of the polling data
Set the number of pass tables in the polling data to be sent by setting the port table in multiple stages
The number of passes from the polling data received.
To determine the destination , refer to the recorded contents of the polling data received
And confirm that the above management data is given
An information storage medium, which stores a program for causing the computer to execute the step of not giving the management data again .