JP2527461B2 - Network configuration identification method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Overview] A network configuration identification method for monitoring the connection status of modems that make up a communication network, and a configuration change is automatically identified based on modem information input from a modem side by a monitoring device. In order to do so, a monitoring device connected to at least one of the modems configuring the network sends a network configuration investigation instruction and a network configuration information upload instruction to another modem via the modem connected to the monitoring device, On the modem that received the network configuration survey instruction,
The received network configuration check instruction is added to the received communication line and modem addresses of the network configuration check instruction to form a new network configuration check instruction, and the procedure is sequentially executed until the end of the network. Then, the modem at the end of the network which has received the instruction to take up the network configuration information instructs the monitoring device to send the addresses of the communication line and the modem itself through the instruction to investigate the network configuration to the modem at the end of the network. The new network configuration check instruction added to the above is sent back as network configuration information.

[Industrial applications]

The present invention relates to a network configuration identification method for monitoring the connection status of modems that form a communication network.

[Conventional technology]

In the conventional communication network, as shown in FIG.
The modem 2 to which the terminal device 1 is connected and the modem 4 to which the terminal device 3 is connected are connected via an analog communication line 5 such as a telephone line, and the monitoring device 6 is connected to one of the modems 2. The monitoring device 6 was made to monitor each of the modems 2 and 4 constituting the network for transmitting and receiving data.

In order to monitor each of the modems 2 and 4, it is necessary to register the information of each of the modems 2 and 4 to be monitored in the monitoring device. There are various kinds of information for each modem 2, 4, but the information specific to each modem 2, 4 such as communication speed, etc., will not work regardless of whether or not there is monitoring, because each modem 2, 4 does not work.
It is set at the site where each modem 2, 4 is installed.

[Problems to be Solved by the Invention]

Since the setting of the information peculiar to the modem in the above-mentioned conventional communication network is a method of manually inputting it at the place where the modem is installed, when the network configuration becomes complicated by a large number of modems, that is, a plurality of modems 2, There was no way to set the connection form between the four, and it was necessary to register directly in the monitoring device 6. This work is complicated and time-consuming, and there is a problem in that registration must be redone each time the network configuration is changed.

The present invention has been made in view of the above problems, and a technical problem set for the purpose of solving the problems is to automatically identify a configuration change based on modem information input from a modem by a monitoring device. It is to provide a network configuration identification method.

[Means for solving the problem]

The present invention, as a specific means for solving the above problems, in configuring a network configuration identification method,
As shown in FIG. 1, a modem 7, which constitutes a network,
A monitoring device 10 connected to at least one of the devices 8 and 9 transmits a network configuration check instruction and a network configuration information uploading instruction to another modem 8 or 9 via the modem 7 connected to the monitoring device 10, The modems 7, 8 and 9 which have received the configuration check instruction add the addresses of the communication line and the modem itself through which the received network configuration check instruction has passed to the instruction to form a new network configuration check instruction. The procedure is sequentially repeated up to the modem 8 at the network end, and the modem 8 at the network end that has received the instruction to take up the network configuration information tells the monitoring device 10 that the communication line through which the instruction in the network configuration inspection instruction has passed. Formed by adding the address of the modem itself to the modem at the end of the network The Tana network configuration investigation instruction is intended to reply as the network configuration information.

[Action]

According to the present invention, with the above-described configuration, the network configuration survey instruction transmitted to each modem 7, 8, 9 and the network configuration information sucking instruction are used to perform communication via the network configuration survey instruction for each modem 7, 8, 9 A new network configuration check instruction is created by adding the address of the line and the modem itself to the instruction and sent to the modem at the end of the network. When the modem reaches the end of the network, the received instruction passes through the communication line and modem. A new network configuration inspection instruction formed by adding its own address to the instruction is returned to the monitoring device 10 side in accordance with the received network configuration information absorption instruction, and the monitoring device 10
Provides the monitoring device 10 with connection information of each modem 7, 8, 9 so that the network configuration can be automatically grasped.

〔Example〕

Hereinafter, as a preferred embodiment of the present invention, in the case of a network configuration in which a plurality of modems are connected to a series, a simplified description will be given.

As shown in FIG. 2, a plurality of (four in the figure) modems 13, 14, 15, 16 are connected between the terminal device 11 and the terminal device 12, and the modem 13 has a monitoring line 17 among them. The monitor device 18 is connected by the above, and the monitor line 19 is also connected between the modem 14 and the modem 15.

Then, digital communication is performed between the terminal device 11 and the modem 13, between the modem 16 and the terminal device 12, between the modem 14 and the modem 15, and on the monitoring lines 17 and 19, and the modem 13 and the modem 14 are connected. Analog communication between the modem 15 and the modem 16.

When the monitoring device 18 monitors such a network, it is as follows.

On the monitoring device 18 side, as shown in FIG.
Sends a configuration check command (command C1) (step 2
1) Then, the terminal modem check command (command C2) is sent (step 22), and the configuration information download command (command C3) is sent (step 23), and the network configuration information (response R3) is sent from the modem 13 side. It can be received (step 24) and the network configuration can be identified based on this information (step 25).

On the other hand, when the modem 13, 14, 15, or 16 on the receiving side sees the configuration check command (command C1) as seen from the device transmitting the command (step 31). Then, it is discriminated whether the command is received from the digital line (case in the figure) or received from the analog line (case in the figure) (step 32). As a result of this identification,
When it is received from the analog line, the fact that it is received from the analog side is added to the command (step 33), and when it is received from the digital line, the fact that it is received from the digital side is added to the command (step 34). Then, the address of the own station is added to the command to which the reception path is added (step 35). After storing the entire text of the command added up to the address of your own station (step 36), send it to the modem (modem 14, 15, or 16) connected to the sending side of this modem, and as described later, Modem check command (command C2)
If it is received, the fact that it is a modem (intermediate point) with a modem connected to the transmission side (response R2) is returned to the modem that issued the command to this modem (step 3).
7).

All the modems 13, 14, 15, and 16 execute the above processing in order, and when it becomes the modem 16, since the modem is not connected to the sending side, the configuration information sucking command (command C3) is received as described later. If so, the entire text (response R3) of the command in which the line name and address pair is sequentially added to the configuration check command (command C1) is returned to the monitoring device 18.

In response to the terminal modem investigation command (command C2), the modem
13, 14, or 15 receives the command (step 38) as shown in FIG. 5, and the monitoring device is sent via the modem on the calling side.
The response R2 is returned to the 18 side (step 39).

As shown in FIG. 6, each of the modems 13, 14, 15, and 16 constantly monitors the response R2 sent by another modem (step 41), and checks whether or not the response R2 passes (step 42). If the response R2 passes, it recognizes that it is not the modem located at the end and stores it (step 43),
If the response R2 does not pass, it recognizes that it is the modem located at the end and stores it (step 44).

In response to the configuration information sucking-up command (command C3), each of the modems 13, 14, 15, and 16 checks whether it recognizes itself as the terminal modem by passing the response R2 as shown in FIG. 7 ( If it is recognized as the terminal modem, the response R3 is returned to the monitoring device 18 side (step 46), and if it is not recognized as the terminal modem, the response R3 'is returned to the monitoring device 18 side (step 46). 47).

In this way, to the command C1 transmitted from the monitoring device 18 side, as shown in FIG. 8, the fact that the command is received from the digital line is added, and next, the address of the modem 13 is added and the response R3 is added. Is formed. Further, the fact that it has been received from the analog line is added, and then the address of the modem 14 is added to form a new response R3.

This data addition process is repeated until the modem 16
When the response R3 is formed, network configuration information that causes the monitoring device 18 to be eccentric is formed.

Thus, in this embodiment, the monitoring device 18 is
Data communication with 13,14,15, and 16 allows network information to be automatically collected, eliminating the need to manually input network configuration information. Therefore, it becomes easy to change the modem or network, and the registration of the modem information accompanying the change of the modem can be minimized, so that the registration work can be simplified. This not only reduces the number of registration errors, but also prevents the registered content from being different from the actual network configuration.

〔The invention's effect〕

As described above, in the present invention, as the network configuration identification method, the addresses of the communication line and the modem itself, which are sequentially received by the instruction from the monitoring device 10 to the modem 8 at the network end, are added to the instruction. Then, new instruction information for clarifying the network configuration is generated, and the information is sent back from the modem 8 at the end of the network to the monitoring device 10 so that the monitoring device 10 can automatically grasp the network configuration. This eliminates the need to manually register the network configuration and does not require special registration even if the network configuration changes.
Moreover, it is possible to prevent the registered content from being different from the actual network configuration.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a network to which the present invention is applied, FIG. 2 is a block diagram showing a network of an example according to the present invention, and FIG. 3 is a flow chart showing a monitoring procedure of a monitoring device, FIG. 4 is a flowchart showing the command C1 processing of the modem, FIG. 5 is a flowchart showing the command C2 processing of the modem, FIG. 6 is a flowchart showing the response R2 monitoring procedure of the modem, and FIG. FIG. 8 is a flow chart showing the command C3 process, FIG. 8 is an explanatory diagram showing a change in a signal due to information added to a command transmitted from the monitoring device, and FIG. 9 is a configuration diagram showing a conventional network, 7, 8, 9,13,14,15,16 …… Modem 11,12 …… Terminal device 10,18 …… Monitoring device 17,19 …… Monitoring line

Claims (1)

(57) [Claims] 1. A modem (7,8,9) constituting a network
From the monitoring device (10) connected to at least one of the above, to the other modems (8, 9) via the modem (7) connected to the monitoring device (10), the network configuration check instruction and the network configuration information upload instruction The modem (7,8,
In 9), the address of the communication line through which the received network configuration check instruction has passed and the modem itself are added to the received network configuration check instruction to form a new network configuration check instruction, and the procedure is added to the network end. From the modem (8) at the end of the network that received the instruction to suck up the network configuration information to the monitoring device (10),
A new network configuration inspection instruction formed by adding the addresses of the communication line through which the network configuration inspection instruction has passed and the modem itself to the modem (8) at the end of the network is formed as network configuration information. Network configuration identification method characterized by sending back a reply.