JP4984985B2 - Network information control system and network information control method - Google Patents

Description

  The present invention relates to a network information control system and a network information control method.

  In general, when a network terminal is monitored by a monitoring device, setting of the IP address of each network terminal is essential in a monitoring method using a network based on TCP / IP. As a conventional method for assigning an IP address to each network terminal, if the user makes settings for each network terminal one by one, as the number of network terminals to be managed increases, The labor required for assigning IP addresses is greatly increased.

On the other hand, as described in Japanese Patent Laid-Open No. 2005-197793 “Network Address Allocation Device, Network Address Allocation Method, and Network Address Allocation Program” disclosed in Patent Document 1, DHCP (Dynamic Host Configuration)
If a random IP address is assigned by (Protocol), an IP address that is not intended by the user is assigned to each network terminal.

Further, as described in Japanese Patent Laid-Open No. 2001-285305 “IP address setting device and IP address setting method” disclosed in Patent Document 2, when an IP address is assigned by specifying a MAC address by DHCP, It is necessary for the user to know the MAC address of the network terminal in advance.
Japanese Patent Laying-Open No. 2005-197793 (pages 7-8) JP-A-2005-197793 (page 4-5)

  As described above, the conventional IP address setting method has a problem that a burden on the user for assigning the IP address is accompanied or an unintended address is assigned.

  Therefore, an object of the present invention is to set network information such as an intended IP address for each terminal by simply determining the arrangement of each terminal on the network without knowing the MAC address of each terminal. It is an object of the present invention to provide a network information control system and a network information control method.

  In order to solve the above-described problem, the network information control system and the network information control method according to the present invention employ the following characteristic configuration.

(1) managing registration information from a user including at least a terminal that transmits and receives a packet using an IP address via a network, arrangement information indicating a connection relationship between the terminals, and network information to be set in each terminal A network information control system comprising a registration table, and a monitoring device that performs control for setting the network information registered in the registration table in each terminal on the network, wherein the monitoring device is connected to the network A network information control system for performing a network information setting operation for a designated terminal based on a notification from the designated terminal.
(2) The network information control system according to (1), wherein the network information registered in the registration table includes at least an IP address of a terminal.
(3) Among the terminals connected on the network, the network information of the nearest terminal and the IP address of the monitoring apparatus are assigned to the head nearest neighbor terminal directly connected to the monitoring apparatus at the time of constructing the network. The user does not set the network information related to other terminals, and thereafter, among the terminals connected on the network, the terminals for which the network information has been set are the adjacent terminals that are adjacent to each other. When the connection to the network is detected by the STP protocol (Spanning-Tree Protocol), the monitoring device transmits a notification requesting to acquire the network information of the detected adjacent terminal to the monitoring device. Obtain network information of the neighboring terminal from The network information control system according to (1) or (2), wherein the network information is transferred to a terminal and network information is set in the adjacent terminal.
(4) When a terminal for which network information has been set detects that an adjacent terminal adjacent to the terminal is connected to the network, the network information of the detected adjacent terminal is not stored. The network information control system according to (3), wherein a new adjacent terminal detection packet indicating that a connection of the adjacent terminal from which information has not been acquired is newly detected is transmitted to the monitoring device.
(5) When the monitoring apparatus receives the new neighboring terminal detection packet from the terminal, whether or not network information related to the neighboring terminal notified by the new neighboring terminal detection packet has been registered in the registration table. If the network information of the adjacent terminal is not registered, a warning message for notifying the user is output, and the network waits until the user registers the network information of the adjacent terminal in the registration table. Information control system.
(6) When the monitoring apparatus receives the new adjacent terminal detection packet from the terminal, whether the network information related to the adjacent terminal notified in the new adjacent terminal detection packet has been registered in the registration table. If it has been registered, a network information setting packet including at least the network information of the neighboring terminal registered in the registration table and the IP address of the monitoring device is generated, and the new neighboring The network information control system according to (5), wherein the network information control system transmits the terminal detection packet to the transmission source terminal.
(7) The terminal that has received the network information setting packet from the monitoring device stores the network information of the adjacent terminal included in the network information setting packet, and the network information of the adjacent terminal and the monitoring The network information control system according to (6), wherein information including at least the IP address of the device is transmitted as a network information setting MAC frame to the adjacent terminal using the MAC address of the adjacent terminal.
(8) When a terminal for which network information has been set detects that an adjacent terminal adjacent to the terminal is connected to the network, the detected network information of the adjacent terminal is already transferred from the monitoring device. If stored, the existing neighboring terminal detection packet indicating that the connection of the neighboring terminal for which network information has been acquired has been detected is transmitted to the monitoring device, and the stored network information of the neighboring terminal and the The network information control system according to (3), wherein information including at least the IP address of the monitoring device is transmitted to the adjacent terminal as a network information setting MAC frame using the MAC address of the adjacent terminal.
(9) The terminal that has transmitted the network information setting MAC frame to the adjacent terminal repeatedly transmits at a predetermined time interval until receiving a setting reception MAC frame indicating that the network information setting MAC frame has been normally received from the adjacent terminal. The network information control system according to (7) or (8).
(10) When a terminal connected to the network receives the network information setting MAC frame from an adjacent terminal, the terminal has successfully received the network information setting MAC frame from the adjacent terminal. The setting reception MAC frame is returned using the MAC address of the neighboring terminal that is the transmission source, the network information included in the network information setting MAC frame is set in the own terminal, and the IP address of the monitoring device is set. The network information control system according to any one of (7) to (9) to be registered.
(11) When the terminal connected to the network finishes setting the network information and registering the IP address of the monitoring device based on the network information setting MAC frame received from the adjacent terminal, On the other hand, the network information control system according to (10), wherein a monitoring start packet for requesting the start of monitoring as a monitoring target is transmitted using the IP address of the monitoring device.
(12) When the monitoring device receives the monitoring start packet from the terminal, the monitoring device checks whether or not the terminal that is the transmission source of the monitoring start packet has been registered in the registration table, and has been registered In this case, the terminal is registered as a monitoring target, and network information of all terminals that may be connected to the port of the terminal as an adjacent terminal is retrieved with reference to the registration table and connected as an adjacent terminal. The network according to (11), wherein a network information setting packet including at least network information of all possible terminals and an IP address of the monitoring device is generated and transmitted to the terminal that is the transmission source of the monitoring start packet Information control system.
(13) The terminal that has received the network information setting packet from the monitoring device stores the network information of all the terminals that may be connected as neighboring terminals, included in the network information setting packet. The network information control system according to (12) above.
(14) A terminal that stores the network information of all the terminals that are likely to be connected as neighboring terminals included in the network information setting packet received from the monitoring device is adjacent to the terminal. When the connection is detected, it is confirmed whether or not the network information of the detected adjacent terminal is stored, and if it is stored, the network information is acquired and the connection indicating the connection of the adjacent terminal is detected is indicated. An existing adjacent terminal detection packet is transmitted to the monitoring device, and information including at least the stored network information of the adjacent terminal and the IP address of the monitoring device is used as the network information setting MAC frame of the adjacent terminal. The network information control system according to (13), which transmits to the adjacent terminal using a MAC address. .
(15) A terminal that stores network information of all terminals that are likely to be connected as neighboring terminals included in the network information setting packet received from the monitoring device is an adjacent terminal adjacent to the terminal. When the connection is detected, it is confirmed whether or not the network information of the detected neighboring terminal is stored. If not, the fact that the connection of the neighboring terminal that has not acquired network information has been newly detected is detected. (13) The network information control system according to (13), wherein the new adjacent terminal detection packet indicating: is transmitted to the monitoring device.
(16) Manage registration information from a user including at least terminals that transmit and receive packets using IP addresses via a network, arrangement information indicating connection relations between the terminals, and network information to be set in the terminals. A network having a registration table and comprising a monitoring device for controlling the setting of the network information registered in the registration table in each terminal on the network, and controlling the setting of the network information of the terminals connected to the network In the information control method, the monitoring apparatus performs a network information setting operation for a designated terminal based on a notification from a terminal connected on the network.
(17) The network information control method according to (16), wherein the network information registered in the registration table includes at least an IP address of a terminal.
(18) Among the terminals connected on the network, the network information of the nearest terminal and the IP address of the monitoring apparatus are assigned to the head nearest neighbor terminal directly connected to the monitoring apparatus at the beginning of construction of the network. The user does not set the network information related to other terminals, and thereafter, among the terminals connected on the network, the terminals for which the network information has been set are the adjacent terminals that are adjacent to each other. When the connection to the network is detected by the STP protocol (Spanning-Tree Protocol), the monitoring device transmits a notification requesting to acquire the network information of the detected adjacent terminal to the monitoring device. To obtain network information of the neighboring terminal from The network information control method according to (16) or (17), wherein the network information is transferred to a connected terminal and network information is set in the adjacent terminal.

  According to the network information control system and the network information control method of the present invention, the following effects can be obtained.

  The first effect is that the user sets the position information of the terminal, that is, the arrangement (port) of the terminal connected to the network as the arrangement information on the monitoring device, so that the user does not care about the MAC address or the like in the terminal. The network information such as the expected IP address can be set. Even if the terminal is replaced, the monitoring device can continue monitoring without concern.

  The second effect is that the user only sets the network information such as the IP address of the first terminal directly connected to the monitoring apparatus manually, and the other terminal is not aware of the desired IP address. It is not necessary to manually set the network information such as, but can be automatically performed.

  The third effect is that it is possible to centrally manage all network information assigned to each terminal on the monitoring device side, and to prevent duplication of IP addresses due to misconfiguration of network information due to human error of the user. It is in that it is.

  Hereinafter, preferred embodiments of a network information control system and a network information control method according to the present invention will be described with reference to the accompanying drawings.

(Features of the present invention)
Prior to the description of the embodiments of the present invention, the features of the present invention will be outlined. In the present invention, network information such as IP addresses of network terminals (hereinafter simply referred to as “terminals”) equivalent to switches and routers is automatically set from the monitoring device as arbitrarily registered on the monitoring device. And the IP address of the monitoring device for packet transmission / reception with the monitoring device can be automatically registered in each terminal.

  Here, the monitoring device has a function of holding arrangement information such as registration information, location information, and connection form information of the IP address of the terminal to be monitored. On the other hand, the terminal has a function capable of setting network information such as an IP address manually (that is, manually), and at the beginning of network construction, the head connected directly to the monitoring device In this terminal, network information such as an IP address can be manually set in advance to communicate with the monitoring device.

  Further, the terminal has a function of recognizing the MAC address of another terminal adjacent to the terminal. Here, since it is possible to search for adjacent terminals by using a well-known STP protocol (Spanning-Tree Protocol), detailed description thereof is omitted here.

  Furthermore, since the terminal is physically connected between the ports (including wireless communication) with respect to other terminals adjacent to the own terminal, the terminal has a function of performing communication using only the MAC frame. It has a function capable of transmitting a “network information setting MAC frame” for setting network information such as an IP address to other adjacent terminals.

  Furthermore, when a “network information setting MAC frame” is received from another adjacent terminal, the terminal sets the network information setting function such as the IP address and the “network information setting MAC frame” to the terminal. It has a function of registering the IP address of the monitoring device that has been notified. Further, in the terminal, the “configured MAC frame” (that is, the self-configured MAC frame) that means a response to the “network information setting MAC frame” is transmitted to another adjacent terminal that has transmitted the “network information setting MAC frame”. A MAC frame indicating that the terminal network information has been normally received).

  Furthermore, in the terminal, when the setting of the network information is completed, the “monitoring start packet” that requests monitoring as the monitoring target for the IP address of the monitoring device registered by the “network information setting MAC frame” It has the function to transmit. The monitoring device has a function capable of detecting whether the network information designated for the transmission source terminal has been set by receiving the “monitoring start packet”.

  The monitoring apparatus sends a packet including network information about all adjacent terminals that may be connected to the terminal and the IP address of the monitoring apparatus to the terminal that is the transmission source of the “monitoring start packet”. It has a function of transmitting as a “network information setting packet” for setting network information when a connection is detected. In addition, when a “network information setting packet” is received from the monitoring device, the terminal stores the network information of the adjacent terminal, and when the adjacent terminal to which the network information is to be set is detected, On the other hand, it has a function of transmitting a “network information setting MAC frame” including at least the network information to be set and the IP address of the monitoring device. Further, it has a function of transmitting a “setting reception packet” (that is, a reception confirmation packet of a “network information setting packet”) to the transmission source monitoring apparatus.

  As described above, in the present invention, network information uniquely allocated by the monitoring device does not need to be individually set on the terminal side, and can be automatically set by exchanging information with the monitoring device. It is possible. In addition, the IP address of the monitoring device can be automatically registered to the terminal, and the IP address of the monitoring device is automatically assigned to the terminal that conventionally required to set the IP address of the monitoring device individually. It is possible to register.

(Configuration of Example)
FIG. 1 is a system configuration diagram showing an example of the configuration of a network information control system according to the present invention. In the configuration example shown in FIG. 1, a monitoring device a01 and terminals b01, b02, b03 are connected to a network such as a LAN.

  At the beginning of network construction, the monitoring device a01 and the nearest terminal b01 directly connected to the monitoring device a01 can perform network communication between the monitoring device a01 and the terminal b01 using IP packets. In order to be able to do this, it is necessary to manually set network information such as each IP address in advance (by hand). Here, in FIG. 1, the MAC addresses of the terminals b01, b02, and b03 are “00-0C-76-00-00-01”, “00-0C-76-00-00-02”, “00-”, respectively. 0C-76-00-00-03 ", and the IP addresses assigned by the user to the monitoring device a01 and the terminal b01 are" 192.168.0.1 "and" 192.168.0.2 ", respectively. The terminals b02 and b03 are not yet assigned IP addresses.

  On the other hand, as shown in FIG. 2, in the monitoring device a01, as the network information control system MAP, an arrangement diagram for setting arrangement information indicating a connection relationship between terminals, and network information such as an IP address to be assigned to each terminal The network information control system MAP (registration table) includes registration information including at least a network information allocation table for registering. In the monitoring device a01, it is possible for the user to create an arrangement diagram of the terminals b01, b02, and b03 for each terminal to be monitored in the monitoring device a01. In addition, an arbitrary IP address is assigned to the terminals b01, b02, and b03 by the user in the layout drawing creation process. FIG. 2 illustrates the layout of the terminals b01, b02, b03 created by the user in the monitoring device a01 of the network information control system according to the present invention and the network information control system MAP (registration table) for registering the network information to be assigned to each. It is a schematic diagram for doing.

  In the layout diagram of FIG. 2, the nearest terminal directly connected to the monitoring device a01 is the terminal b01, the adjacent terminal b02 is connected to the Port1, and the adjacent terminal b03 is connected to the Port2 of the terminal b02. The case where it is connected is shown. Here, as shown in the IP address column of the IP address assignment table of FIG. 2, the IP addresses registered in advance in the monitoring device a01 as IP addresses that the user wants to assign to the terminals b01, b02, b03 are respectively “192”. .168.0.2 "," 192.168.0.3 "," 192.168.0.4 ".

  As shown in the assignment column of the IP address assignment table of FIG. 2, among these, the terminal b01 directly connected to the monitoring device a01 is connected to the monitoring device a01 at the beginning of the network construction as described in FIG. A state where an IP address is set manually (manually) so that communication using an IP packet is possible and has already been assigned, but no IP address has been set yet for the terminals b02 and b03. It is in. In each of the terminals b01, b02, and b03, the subnet mask (subnet mask) is “255.255.255.0”, and the default gateway (default gateway) is “192.168.0.254”. It is said. Hereinafter, information set in the IP address allocation table is referred to as network information.

  Each terminal b01, b02, b03 has an adjacent terminal search processing function based on the STP protocol, and can search for the MAC address of the adjacent terminal. The terminal b01 can acquire information on the MAC address of the terminal b02 as an adjacent terminal to Port1. Also, the terminal b02 can acquire information on the MAC address of the terminal b01 as an adjacent terminal to Port1 and the terminal b03 as an adjacent terminal to Port2. The terminal b03 can acquire information on the MAC address of the terminal b02 as an adjacent terminal to Port1.

  Next, the sequence chart of FIG. 3 is shown for an example of the operation of setting the network information registered in the network information allocation table of the monitoring device a01 for the terminals b02 and b03 for which the network information such as the IP address is not set. It explains using. FIG. 3 is a sequence chart illustrating an example of an operation for setting network information from the monitoring device a01 to the terminals b02 and b03 for which network information is not set. When the monitoring device a01 sets network information in the terminal b02, FIG. It explains mainly on the flow of.

  When the terminal b01 for which the network information has been set detects that the terminal 02 of the new adjacent terminal is connected to the Port 1 by the adjacent terminal search processing function based on the STP protocol, the terminal b01 is adjacent to the port number Port 1 with respect to the monitoring device a01. A “new neighbor terminal detection packet” notifying that the terminal b02 has been newly connected as a terminal is set and transmitted with the IP address of the monitoring device a01 set (sequence SQ1). That is, if the terminal b01 has not yet received from the monitoring device a01 the network information related to the adjacent terminal b02 for Port1 detected as the result of the adjacent terminal search process, the network information that has no network information is not set. 4 is generated, and a “new adjacent terminal detection packet” as shown in FIG. 4 is generated and transmitted to the monitoring device a01.

  FIG. 4 is a packet format showing an example of a “new adjacent terminal detection packet” for notifying the monitoring apparatus a01 that a new adjacent terminal b02 having no network information and having no network information set is detected. The “Neighbor” column indicating the detected adjacent terminal is “NEW (new)”, and the “Port” column indicating the detected port number is “Port1”. When notifying the monitoring device a01 that an adjacent terminal already having network information has been detected, an “existing adjacent terminal detection packet” as shown in FIG. 5 is generated and sent to the monitoring device a01. Send to. FIG. 5 is a packet format showing an example of an “existing adjacent terminal detection packet” for notifying the monitoring apparatus a01 that an existing adjacent terminal already having network information has been detected. “Neighbor” column indicating “FOUND (detected)” and “Port” column indicating the detected port number are “Port1”.

  The monitoring apparatus a01 that has received the “new neighbor terminal detection packet” indicating that the terminal b02 that does not have network information as a neighbor terminal for the Port1 from the terminal b01 has been newly connected is detected by the network shown in FIG. On the information control system MAP, it is confirmed whether or not the network information of the terminal connected to Port 1 of the terminal b01, that is, the terminal b02 has been registered, and if it has been registered, the “network” illustrated in FIG. The “information setting packet” is transmitted to the terminal b01 that is the transmission source of the “new adjacent terminal detection packet” (sequence SQ2).

  FIG. 6 is a packet format showing an example of a “network information setting packet” for notifying network information to be set to a new adjacent terminal b02 for which network information is not set, and the network information of the monitoring device a01 This notifies the control system MAP that the network information of the terminal b02 that has been registered manually is set.

  In the example of FIG. 6, as shown in the network information control system MAP of FIG. 2, the neighboring terminal detected at “Port 1” shown in the “Port” column with respect to the terminal b 01 that is the transmission source of the “new neighboring terminal detection packet” As the network information related to the terminal b02, “192.168.0.3” shown in the “IP Address” column, “255.255.255.0” shown in the “Subnet Mask” column, and “Default Gateway” column shown in the “Default Gateway” column “192.168.0.254” is set in the “Observer Address” field for notifying the terminal b02 of the IP address of the transmission source monitoring device a01, the monitoring device a01 “192.168.0.1” An example of transmission is shown together with the IP address.

  Note that the monitoring device a01 that has received the “new adjacent terminal detection packet” indicating that the terminal b02 has been detected as a new adjacent terminal at the port b1 of the terminal b01 is displayed on the network information control system MAP illustrated in FIG. If the network information related to the terminal connected to Port1, that is, the terminal b02 is not registered, the user is notified that the network information related to the terminal connected to Port1 of the terminal b01, that is, the terminal b02 is not registered. A warning message is output, and the monitoring device a01 temporarily enters a standby state until the user finishes registration of the network information related to the terminal b02 connected to Port1 of the terminal b01. , "Network information setting shown in FIG. "To the" packet performs the transmission source terminal b01 of the new neighboring terminal detection packet "(sequence SQ2).

  The terminal b01 that has received the “network information setting packet” from the monitoring device a01 returns a “setting reception packet” as a reception confirmation packet of the “network information setting packet” to the transmission source monitoring device a01 (sequence). SQ3). As shown in FIG. 7, the “setting reception packet” is configured to set the information received as the “network information setting packet” as it is.

  FIG. 7 is a packet format showing an example of a “setting reception packet” to be returned as a reception confirmation packet of the “network information setting packet”. For the monitoring device a01 that is the transmission source of the “network information setting packet”, It notifies that it has been received.

  In the example of “set reception packet” in FIG. 7, “Port 1” shown in the “Port” column, “192.168.0.3” shown in the “IP Address” column, “255.255” shown in the “Subnet Mask” column. .255.0 "," 192.168.0.254 "shown in the" Default Gateway "column," 192.168.0.1 "shown in the" Observer Address "column, and the received" Network Information Setting "in FIG. In this example, the content of the “packet” is set as it is and returned.

  Further, the terminal b01 that has received the “network information setting packet” stores the network information related to the terminal b02 of the adjacent terminal connected to the Port1 set in the “network information setting packet” and has been searched in advance. The MAC address of the adjacent terminal b02 is checked again if there is an adjacent terminal for Port 1 specified in the “network information setting packet”. If there is, the MAC address of the adjacent terminal b02 is extracted. Then, a “network information setting MAC frame” as illustrated in FIG. 8 is created and transmitted to the terminal b02 of the adjacent terminal (sequence SQ4).

  FIG. 8 is a frame format showing an example of a “network information setting MAC frame” for instructing an adjacent terminal to set network information. The monitoring apparatus a01 uses the “network information setting packet” as shown in FIG. The network information related to the notified terminal b02 is set as it is. That is, for the MAC address “00-0C-76-00-00-02” of the adjacent terminal b02, the IP address “192.168.0.3” of the “network information setting packet” received from the monitoring device a01. , Subnet Mask “255.255.255.0”, Default Gateway “192.168.0.254”, and Observer Address “192.168.0.1” indicating the IP address of the monitoring device a01 are connected to the adjacent terminal b02. Is to be transferred to.

  The terminal b02 that has received the “network information setting MAC frame” from the terminal b01 sets the network information of the terminal b02 itself according to the content of the received “network information setting MAC frame”, and the IP address “of the monitoring device a01” 192.168.0.1 "is registered and stored. The terminal b02 sets the network information of the terminal b02 itself, registers the IP address of the monitoring device a01, extracts the MAC address of the terminal b01 that is the transmission source of the “network information setting MAC frame”, and sends it to the terminal b01. On the other hand, a “setting reception MAC frame” (that is, a network information received MAC frame) as illustrated in FIG. 9 which means a response to the “network information setting MAC frame” is transmitted (sequence SQ5).

  FIG. 9 is a frame format showing an example of a “setting reception MAC frame” to be returned as a response frame of “network information setting MAC frame”, to the terminal b01 that is the transmission source of “network information setting MAC frame” The network information is normally received. That is, for the MAC address “00-0C-76-00-00-01” of the adjacent terminal b01, the IP address “192.168.0.3” of the received “network information setting MAC frame”, Subnet Mask “255.255.255.0”, Default Gateway “192.168.0.254”, and Observer Address “192.168.0.1” indicating the IP address of the monitoring device a01 are transmitted. This is returned to the original adjacent terminal b01.

  At this time, the terminal b02 further requests the monitoring device a01 to start monitoring the terminal b02 with the IP address of the monitoring device a01 registered based on the received “network information setting MAC frame” as the destination. For this purpose, a “monitoring start packet” as illustrated in FIG. 10 is transmitted (sequence SQ6). FIG. 10 is a packet format showing an example of a “monitoring start packet” for notifying the monitoring device a01 that the setting of network information instructed by the “network information setting packet” is completed and requesting the start of monitoring. In addition to the IP address (Observer Address) “192, 168.0.1” of the monitoring device a01, the IP address “192.168.0.3” of the terminal b02 to be monitored is also requested. include.

  The monitoring device a01 that has received the “monitoring start packet” from the terminal b02 registers the terminal b02 as a monitoring target, starts monitoring, and has already been assigned to the assignment field on the network information control system MAP shown in FIG. Set up. Furthermore, the monitoring device a01 checks whether there is an adjacent terminal that may be connected to the terminal b02 that is the transmission source of the “monitoring start packet” based on the network information control system MAP shown in FIG. As shown in FIG. 2, when there is a terminal b03 as an adjacent terminal of the terminal b02, for example, a “network information setting packet” for setting the network information of the terminal b03 is transmitted to the terminal b02. (Sequence SQ7). Here, the “network information setting packet” transmitted from the monitoring apparatus a01 to the terminal b02 that is the transmission source of the “monitoring start packet” is not only the network information of one terminal, for example, the terminal b03, but a plurality of It may be a terminal, and includes network information related to all terminals that may be connected to the port of the terminal b02 registered in the network information control system MAP.

  The terminal b02 that has received the “network information setting packet” instructing the setting of the network information of the terminal b03 from the monitoring device a01 confirms whether or not the terminal b03 is connected to the Port 2, and then further, the terminal of the adjacent terminal The network information of b03 is acquired and checked whether it has already been stored. If the terminal b02 has already been stored and has the network information of the terminal b03, the network information is An “existing adjacent terminal detection packet” as shown in FIG. 5 indicating that the existing terminal b03 of the adjacent terminal is detected is generated and transmitted to the monitoring apparatus a01 (sequence SQ8).

  Further, since the terminal b02 detects the terminal b03 connected to the Port 2, the network information already stored and the terminal included in the “network information setting packet” for the terminal b03 received from the monitoring device a01 FIG. 8 shows the network information of the terminal b03 overwritten and stored in the “network information setting packet”, and sets the network information in the terminal b03. A “network information setting MAC frame” as shown is generated and transmitted to the terminal b03 of the adjacent terminal (sequence SQ9).

  Thereafter, by repeating the same operation, the network information preset in the monitoring device a01 is automatically set and registered together with the IP address of the monitoring device a01 for each terminal, and the monitoring operation of the monitoring device a01 is performed. Allows to be launched. As a result, it is possible to automate the procedure that conventionally had to manually set the IP address and register the IP address of the monitoring device for each terminal.

(Description of operation of the embodiment)
Next, the operation of the monitoring device a01 will be further described using the flowchart of FIG. FIG. 11 is a flowchart showing an example of the operation of the monitoring device a01 of the network information control system according to the present invention, and shows an example of the operation when the monitoring device a01 receives a packet.

  When the monitoring device a01 receives a packet from any of the terminals b01, b02, and b03, the operation of FIG. 11 is activated (step S01), and first determines the type of the received packet (step S02).

  When the “monitoring start packet” is received (in the case of the “monitoring start packet” in step S02), the transmission source terminal of the “monitoring start packet” is registered in the network information control system MAP as a monitoring target terminal. A “network information setting packet” including network information related to all terminals that may be connected to the Port of the terminal is transmitted to the terminal of the transmission source (step S03). The “network information setting packet” transmission operation repeats the retransmission operation at a predetermined time interval until a “setting reception packet” indicating reception confirmation (response) is received from the destination terminal.

  Also, when a “setting reception packet” indicating a response (reception confirmation) to the transmitted “network information setting packet” is received (in the case of “setting reception packet” in step S02), transmission of “network information setting packet” is performed. If it is determined that the packet is correctly received by the previous terminal and the retransmission operation of the “network information setting packet” is repeated, the retransmission operation is stopped.

  In addition, when a “neighboring terminal detection packet” for notifying that a new or existing neighboring terminal has been detected is received (in the case of the “neighboring terminal detection packet” in step S02), It is determined whether or not an “existing adjacent terminal detection packet” has been received (step S04).

  When the “existing adjacent terminal detection packet” has been received (in the case of “existing” in step S04), not only the network information related to the transmission source terminal of the “existing adjacent terminal detection packet” but also the Port of the terminal. Recognize that the network information related to all the neighboring terminals that may be connected to is a terminal that has already been transmitted, and terminate the process.

  On the other hand, when the “new adjacent terminal detection packet” has been received (in the case of “new” in step S04), the network information of the newly detected connection destination adjacent terminal of the Port is displayed on the network information control system MAP. It is determined whether or not it is registered (step S05). If the terminal is not registered on the network information control system MAP (in the case of “unregistered” in step S05), the user is prompted to register the network information of the corresponding terminal on the network information control system MAP. After displaying the warning message (step S06), the system once returns to the standby state, and after a predetermined time has elapsed or when a registration completion notification is input from the user, it is restarted and the confirmation operation in step S05 is performed. Resume.

  If the terminal is registered on the network information control system MAP (in the case of “registered” in step S05), the terminal registered in the network information control system MAP is newly connected to the corresponding Port. A “network information setting packet” instructing to set the network information of the adjacent terminal is transmitted to the terminal that is the transmission source of the “new adjacent terminal detection packet” (step S07).

  Thereafter, it is confirmed whether or not a “setting reception packet” indicating reception confirmation of the “network information setting packet” has been received from the terminal (step S08). If it has not been received yet (“not received” in step S08). In the case of "", the process returns to step S07 at predetermined time intervals until the "setting reception packet" is received from the terminal, and periodically repeats the transmission of the "network information setting packet". When “packet” is received (in the case of “reception” in step S08), the retransmission operation of “network information setting packet” is stopped.

  By repeating the above operation, setting of network information and registration of the IP address of the monitoring device a01 for all terminals connected to the network of the monitoring device a01, assignment to the network information control system MAP in the monitoring device a01 And monitoring target terminals can be registered. In addition, when network information is not registered in the network information control system MAP, it is possible to always maintain the monitoring state regarding the latest terminal connected to the network by prompting the user to register the network information. It is.

  Next, the operation at the time of detecting an adjacent terminal on the terminal side will be further described with reference to the flowchart of FIG. FIG. 12 is a flowchart showing an example of an operation at the time of detecting an adjacent terminal on the terminal side of the network information control system according to the present invention, and shows an example of an operation when detecting that an adjacent terminal is connected to the Port. .

  First, when the terminal detects that the terminal is connected to the Port as an adjacent terminal, the “network information setting packet” from the monitoring device a01 including the network information of the terminal corresponding to the Port that detected the adjacent terminal is received. It is determined whether or not it has been received (step S11). If the network information of the terminal has not been received yet (No in step S11), the monitoring device a01 displays a “new adjacent terminal detection packet” indicating that a new adjacent terminal that has not yet received network information has been detected. (Step S12). Thereafter, the process is temporarily terminated, and the process waits until a “network information setting packet” including network information related to the newly detected adjacent terminal is received from the monitoring device a01.

  On the other hand, if the network information of the terminal has already been received (Yes in step S11), an “existing adjacent terminal detection packet” indicating that the adjacent terminal that has already received the network information has been detected is sent to the monitoring device a01. (Step S13). After that, the operation of transmitting the “network information setting MAC frame” including the network information related to the adjacent terminal corresponding to the Port that detects the connection of the terminal to the detected adjacent terminal is performed from the adjacent terminal as “network information setting”. Until the “setting reception MAC frame” indicating that the network information based on the “MAC frame” has been normally received is returned (No in step S14, step S15).

  When a “setting reception MAC frame” indicating that the “network information setting MAC frame” has been received is returned from the adjacent terminal as a response frame to the “network information setting MAC frame” (Yes in step S14), Stops the retransmission operation of the “network information setting MAC frame”.

  By performing the above operation every time the terminal detects an adjacent terminal, the network information setting and the monitoring apparatus a01 are set for the adjacent terminal for which the network information setting and the IP address registration of the monitoring apparatus a01 are not completed. It becomes possible to perform IP addresses sequentially.

  Next, the operation when receiving a packet or MAC frame on the terminal side will be further described with reference to the flowchart of FIG. FIG. 13 is a flowchart showing an example of the operation when receiving a packet or MAC frame on the terminal side of the network information control system according to the present invention.

  When the terminal receives a packet from the monitoring device a01 or a MAC frame from an adjacent terminal, the operation of FIG. 13 is started, and first, the type of the received packet or the type of the MAC frame is determined (step S21).

  If the received packet or MAC frame is a “network information setting MAC frame” from an adjacent terminal (in the case of the “network information setting MAC frame” in step S21), a network information setting instruction is sent to the terminal. Yes, first, a “setting reception MAC frame”, which is a response frame to the “network information setting MAC frame”, is returned to the transmission source terminal of the “network information setting MAC frame” (step S22), and the received “ Set according to the network information such as the IP address specified in the “network information setting MAC frame” and store and register the IP address of the monitoring device a01 included in the “network information setting MAC frame” ( Step S23).

  It should be noted that the transmission source terminal of the “network information setting MAC frame” is repeatedly transmitted at predetermined time intervals until reception of the “setting reception MAC frame” is detected.

  Thereafter, a “monitoring start packet” requesting to start monitoring of the terminal is transmitted to the monitoring device a01 (step S24), and the process is terminated.

  If the received packet or MAC frame is a “setting reception MAC frame” from an adjacent terminal (in the case of “setting reception MAC frame” in step S21), the “network that is repeatedly transmitted at a predetermined time interval” The retransmission operation of the “information setting MAC frame” is stopped, and the process is terminated.

  If the received packet or MAC frame is a “network information setting packet” from the monitoring device a01 (in the case of the “network information setting packet” in step S21), first, the “network information setting packet” A “setting reception packet” indicating reception confirmation is returned to the monitoring device a01 (step S25), and the network information included in the “network information setting packet” and information relating to the IP address of the monitoring device a01 are received by the terminal. The data is stored and saved in the internal memory (step S26).

  Thereafter, it is confirmed whether or not the connection of the adjacent terminal is detected at the Port corresponding to the received “network information setting packet” (step S27). When the adjacent terminal is not detected (No in step 27), the process is terminated.

  On the other hand, when an adjacent terminal is detected (Yes in step 27), a “network information setting MAC frame” including the network information related to the adjacent terminal and the IP address of the monitoring device a01 is transmitted to the adjacent terminal. (Step S28), it is confirmed whether or not a “setting reception MAC frame” that is a response frame of the “network information setting MAC frame” has been returned from the adjacent terminal (step S29). If the “setting reception MAC frame” has not been received yet (No in step S29), the process returns to step S28 at a predetermined time interval until the “setting reception MAC frame” is received, and “network information setting” "MAC frame" is retransmitted repeatedly.

  When the “setting reception MAC frame” is received (Yes in step S29), the retransmission operation of the “network information setting MAC frame” is stopped and the processing is ended.

  Each time a terminal receives a packet or a MAC frame, the terminal repeats the above operation to transmit a “network information setting MAC frame” to the newly detected adjacent terminal, and the network information and the monitoring device a01. IP address registration can be prompted. Further, the terminal that has received the “network information setting MAC frame” sets the network information of the terminal itself, and transmits a “monitoring start packet” to the monitoring apparatus a01, whereby the monitoring apparatus a01. It is possible to register as a monitoring target and request the start of the monitoring operation.

(Other embodiments of the invention)
In the above-described embodiment, the case where there are three terminals to be monitored by the monitoring device a01 has been described. .

(Explanation of the effect of this embodiment)
As described in detail above, in the embodiment according to the present invention, the following effects can be obtained.

  The first effect is that the user cares about the MAC address or the like in the terminal by setting the position information of the terminal, that is, the arrangement (Port) of the terminal connected to the network, as the arrangement information on the monitoring device a01. The network information such as an expected IP address can be set. Even if the terminal is replaced, the monitoring device a01 can continue monitoring without concern.

  The second effect is that the user only manually sets the network information of the first terminal directly connected to the monitoring device a01, and manually sets the network information without being conscious of other terminals. There is no need to do this, but it can be done automatically.

  The third effect is that all network information assigned to each terminal can be centrally managed on the monitoring device a01 side, and it is possible to prevent network information from being erroneously set due to a human error, especially duplication of IP addresses. It is in that it is.

  The configuration of the preferred embodiment of the present invention has been described above. However, it should be noted that such examples are merely illustrative of the invention and do not limit the invention in any way. Those skilled in the art will readily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention.

It is a system configuration diagram showing an example of the configuration of a network information control system according to the present invention. It is the model for demonstrating the network information control system MAP which registers the layout of the terminal which a user produces with the monitoring apparatus of the network information control system by this invention, and the network information which should be allocated to each. It is a sequence chart explaining an example of the operation | movement which sets network information from a monitoring apparatus with respect to the terminal to which network information is not set. It is a packet format showing an example of a “new adjacent terminal detection packet” for notifying the monitoring apparatus that a new adjacent terminal not having network information has been detected. It is a packet format showing an example of an “existing adjacent terminal detection packet” for notifying the monitoring apparatus that an existing adjacent terminal already having network information has been detected. It is a packet format showing an example of a “network information setting packet” for notifying network information to be set to a new adjacent terminal for which network information is not set. It is a packet format showing an example of a “setting received packet” returned as a reception confirmation packet of a “network information setting packet”. This is a frame format showing an example of a “network information setting MAC frame” for instructing adjacent terminals to set network information. It is a frame format showing an example of a “setting reception MAC frame” returned as a response frame of “network information setting MAC frame”. This is a packet format showing an example of a “monitoring start packet” for notifying the monitoring apparatus that the setting of network information designated by the “network information setting packet” is completed and requesting the start of monitoring. It is a flowchart which shows an example of operation | movement of the monitoring apparatus of the network information control system by this invention. It is a flowchart which shows an example of the operation | movement at the time of the adjacent terminal detection in the terminal side of the network information control system by this invention. It is a flowchart which shows an example of the operation | movement at the time of the reception of the packet or MAC frame in the terminal side of the network information control system by this invention.

Explanation of symbols

a01 Monitoring device b01, b02, b03 Terminal (network terminal)

Claims (16)

A registration table for managing registration information from a user including at least a terminal that transmits and receives packets using an IP address via a network, arrangement information indicating a connection relationship between the terminals, and network information to be set in each terminal has, in the network information control system including a monitoring apparatus that performs control of setting the network information registered in the registration table to each terminal on the network,
Among the terminals connected on the network, the user sets the network information of the nearest terminal and the IP address of the monitoring apparatus in the head nearest neighbor terminal directly connected to the monitoring apparatus at the beginning of the construction of the network The user does not need to set network information related to other terminals, and after that, among the terminals connected on the network, the terminal for which network information has been set and the adjacent terminal connected to the network When it is detected by the STP protocol (Spanning-Tree Protocol), a notification requesting to acquire network information of the detected neighboring terminal is transmitted to the monitoring device, so that the monitoring device Get the network information of the terminal A network information control system for transferring and setting network information in the adjacent terminal .   The network information control system according to claim 1, wherein the network information registered in the registration table includes at least an IP address of a terminal.   When a terminal for which network information has been set detects that an adjacent terminal adjacent to the terminal is connected to the network, the network information is not stored when the detected network information of the adjacent terminal is not stored. The network information control system according to claim 1 or 2, wherein a new adjacent terminal detection packet indicating that a connection of the acquired adjacent terminal is newly detected is transmitted to the monitoring device.   When the monitoring apparatus receives the new adjacent terminal detection packet from the terminal, the monitoring apparatus checks whether the network information related to the adjacent terminal notified in the new adjacent terminal detection packet has been registered in the registration table. 4. If not registered, a warning message notifying the user is output, and the user waits until the network information of the adjacent terminal is registered in the registration table. The network information control system described.   When the monitoring apparatus receives the new adjacent terminal detection packet from the terminal, the monitoring apparatus checks whether the network information related to the adjacent terminal notified in the new adjacent terminal detection packet has been registered in the registration table. If registered, the network information setting packet including at least the network information of the neighboring terminal registered in the registration table and the IP address of the monitoring device is generated, and the new neighboring terminal detection packet is generated. The network information control system according to claim 4, wherein the network information control system transmits the information to a transmission source terminal.   The terminal that has received the network information setting packet from the monitoring device stores the network information of the adjacent terminal included in the network information setting packet, and also stores the network information of the adjacent terminal and the IP of the monitoring device. 6. The network information control system according to claim 5, wherein information including at least an address is transmitted to the adjacent terminal using a MAC address of the adjacent terminal as a network information setting MAC frame.   When a terminal for which network information has been set detects that an adjacent terminal adjacent to the terminal is connected to the network, the detected network information of the adjacent terminal is transferred from the monitoring device and is already stored. If there is an existing neighboring terminal detection packet indicating that the connection of the neighboring terminal for which network information has been acquired has been detected is transmitted to the monitoring device, the stored network information of the neighboring terminal and the monitoring device The network information control system according to claim 1, wherein information including at least an IP address is transmitted to the adjacent terminal using a MAC address of the adjacent terminal as a network information setting MAC frame.   The terminal that has transmitted the network information setting MAC frame to the adjacent terminal repeatedly transmits at a predetermined time interval until receiving a setting reception MAC frame indicating that the network information setting MAC frame has been normally received from the adjacent terminal. The network information control system according to claim 6 or 7.   When the terminal connected to the network receives the network information setting MAC frame from the neighboring terminal, the setting receiving MAC indicating that the terminal has successfully received the network information setting MAC frame from the neighboring terminal Returning the frame using the MAC address of the neighboring terminal that is the transmission source, setting the network information included in the network information setting MAC frame in the own terminal, and registering the IP address of the monitoring device The network information control system according to any one of claims 6 to 8.   When the terminal connected to the network finishes setting the network information and registering the IP address of the monitoring device based on the network information setting MAC frame received from the adjacent terminal, The network information control system according to claim 9, wherein a monitoring start packet for requesting the start of monitoring is transmitted using the IP address of the monitoring device as a monitoring target.   When the monitoring device receives the monitoring start packet from the terminal, the monitoring device checks whether the terminal of the transmission source of the monitoring start packet is registered in the registration table. While registering a terminal as a monitoring target, network information of all terminals that may be connected to the port of the terminal as an adjacent terminal is retrieved with reference to the registration table, and may be connected as an adjacent terminal The network information setting packet including at least network information of all terminals and the IP address of the monitoring device is generated and transmitted to the terminal that is the transmission source of the monitoring start packet. The network information control system described.   The terminal that has received the network information setting packet from the monitoring device stores the network information of all the terminals that may be connected as neighboring terminals, included in the network information setting packet. The network information control system according to claim 11. A terminal that stores the network information of all terminals that may be connected as neighboring terminals included in the network information setting packet received from the monitoring device is connected to neighboring terminals adjacent to the terminal. upon detection, to confirm whether or not storing the detected network information of said adjacent terminal, if stored, indicates to existing adjacent to the effect that the network information detected the acquired connection of the adjacent terminal The terminal detection packet is transmitted to the monitoring device, and the information including at least the stored network information of the adjacent terminal and the IP address of the monitoring device is used as the MAC address for setting the network information, and the MAC address of the adjacent terminal 13. The network information system according to claim 12, wherein the network information system is transmitted to the adjacent terminal using a network. System. A terminal that stores the network information of all terminals that may be connected as neighboring terminals included in the network information setting packet received from the monitoring device is connected to neighboring terminals adjacent to the terminal. upon detection, to confirm whether or not storing the detected network information of said adjacent terminal, if it was not stored, shows the effect that the connection network information of the non-acquisition of the adjacent terminal has detected a new network information control system according to claim 12, wherein sending a new neighbor terminal detection packet to the monitoring device. A registration table for managing registration information from a user including at least a terminal that transmits and receives packets using an IP address via a network, arrangement information indicating a connection relationship between the terminals, and network information to be set in each terminal A network information control method for controlling setting of network information of a terminal connected to the network, and a monitoring device that performs control for setting the network information registered in the registration table in each terminal on the network in,
Among the terminals connected on the network, the user sets the network information of the nearest terminal and the IP address of the monitoring apparatus in the head nearest neighbor terminal directly connected to the monitoring apparatus at the beginning of the construction of the network The user does not need to set network information related to other terminals, and after that, among the terminals connected on the network, the terminal for which network information has been set and the adjacent terminal connected to the network When it is detected by the STP protocol (Spanning-Tree Protocol), a notification requesting to acquire network information of the detected neighboring terminal is transmitted to the monitoring device, so that the monitoring device Get the network information of the terminal A network information control method comprising: transferring and setting network information in the adjacent terminal .   The network information control method according to claim 15, wherein the network information to be registered in the registration table includes at least an IP address of a terminal.

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