JP2012134628A - Monitoring object setting change device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly execute setting change of a monitoring object device required due to increase/decrease of the number of monitoring devices.SOLUTION: A monitoring object setting change device includes: a setting information storage unit 12 for storing setting information for each monitoring device; a monitoring object device information storage unit 13 for storing monitoring object device information including monitoring device identification information indicating one of the monitoring devices for each monitoring object device; an allocation unit 17 for turning, when the monitoring device is increased or decreased, the respective pieces of monitoring device identification information in the monitoring object device information storage unit 13 to all the monitoring device identification information including the monitoring device identification information of the increased monitoring device or all the monitoring device identification information not including the decreased monitoring device identification information of the monitoring device; and a change request processing unit 15 for reading the setting information indicating the monitoring device corresponding to the monitoring device identification information changed in the monitoring object device information storage unit 13 from the setting information storage unit 12 and transmitting the setting information to the monitoring object device corresponding to the monitoring object device information including the monitoring device identification information.

Description

  The present invention relates to a monitoring target setting change device that can quickly change the setting of a monitoring target device that has become necessary due to an increase or decrease in the number of monitoring devices.

  Conventionally, there is a communication system in which a monitoring device monitors a monitoring target device (hereinafter referred to as a monitoring system). In the monitoring system, the address of the monitoring device is set in advance in the monitoring target device, and the monitoring target device corresponds to the address. A notification signal indicating the state of the monitoring target device is transmitted to the monitoring device. In this way, the status of the monitoring target device can be known in the monitoring device by the notification signal.

  FIG. 11 is a diagram illustrating operations before and after increasing the number of monitoring devices in the monitoring system.

  When the number of monitoring devices 3 is increased, the address of the existing monitoring device 3 set for a certain monitoring target device 2 is changed to the increased monitoring device 3 address by an administrator or the like. As a result, the monitoring target device 2 is supposed to transmit a notification signal to the existing monitoring device 3 before the increase in the number of monitoring devices, but after the increase in the number of monitoring devices, the increase. A notification signal is transmitted to the monitoring device 3.

  FIG. 12 is a diagram illustrating operations before and after reducing the number of monitoring devices in the monitoring system.

  When the number of monitoring devices is reduced due to a failure of a certain monitoring device 3, the address of the monitoring device 3 set for a certain monitoring target device 2 is changed to the address of another monitoring device 3 by an administrator or the like. Thereby, the monitoring target device 2 is supposed to transmit a notification signal to the monitoring device 3 that is no longer a monitoring device before the reduction in the number of monitoring devices, but after the reduction in the number of monitoring devices, A notification signal is transmitted to the other monitoring device 3.

JP 2006-222929 A

  As described above, in the conventional monitoring system, it is necessary to change the setting of the monitoring target device by increasing or decreasing the number of monitoring devices. During that time, the notification signal is not transmitted to the correct monitoring device, and the monitoring target device I don't know the situation. If the setting change is delayed due to the circumstances of the administrator, the situation unknown time becomes longer, which is inconvenient. In particular, when there are a large number of devices to be monitored, there is a high possibility of a change delay, which is disadvantageous.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a monitoring target setting change device that can quickly change the setting of a monitoring target device that is required due to an increase or decrease in the number of monitoring devices. There is to do.

  In order to solve the above-described problem, the present invention provides a monitoring system used in a monitoring system in which a notification signal indicating the state of the monitored device is transmitted to the monitoring device indicated by the setting information transmitted to the monitored device. A setting information storage unit that stores setting information indicating the monitoring device for each monitoring device of the one or more monitoring devices; and the monitoring device for each monitoring target device of the one or more monitoring target devices. Monitoring target device information storage unit storing monitoring target device information including monitoring device identification information indicating any monitoring device, and each monitoring device of the monitoring target device information storage unit when the number of monitoring devices increases or decreases The identification information includes all monitoring device identification information including the monitoring device identification information of the increased monitoring device or all monitoring device identification information not including the monitoring device identification information of the decreasing monitoring device. And setting information indicating a monitoring device corresponding to the monitoring device identification information changed in the monitoring target device information storage unit is read from the setting information storage unit and includes the monitoring device identification information. A monitoring target setting change device including a change request processing unit that transmits the setting information to a monitoring target device corresponding to the monitoring target device information is used as a solving means.

  For example, the monitoring target setting change device includes a resource information acquisition unit that acquires resource information including the resource usage rate in the monitoring device from the monitoring device, and the resource usage rate is equal to or higher than a preset threshold value The monitoring device identification information of the monitoring device is not included in all the monitoring device identification information.

  For example, the protocol of the signal for transmitting the setting information is the protocol of the notification signal.

  For example, the monitoring target setting change device includes a resource information acquisition unit that acquires resource information including a resource usage rate in the monitoring device from the monitoring device, and the allocation unit performs the monitoring in the monitoring target device information storage unit The number of monitoring device identification information of the device is reduced as the usage rate increases.

  ADVANTAGE OF THE INVENTION According to this invention, the monitoring object setting change apparatus which can perform the setting change of the monitoring object apparatus required by increase / decrease in the number of monitoring apparatuses rapidly can be provided.

It is a block diagram of the monitoring system containing the monitoring object setting change apparatus which concerns on this Embodiment. 1 is a configuration diagram of a monitoring target setting changing device 1. FIG. 3 is a configuration diagram of a monitoring device information storage unit 11. FIG. 3 is a configuration diagram of a setting information storage unit 12. FIG. 3 is a configuration diagram of a monitoring target device information storage unit 13. FIG. 3 is a configuration diagram of a set value storage unit 14. FIG. 6 is a flowchart when the monitoring device 3 transmits a change request to the monitoring target setting change device 1. 10 is a flowchart when the monitoring device 3 transmits resource information to the monitoring target setting change device 1. 6 is a flowchart when the monitoring target setting change device 1 changes the setting information of the monitoring target device 2. It is a sequence diagram when the setting information of the monitoring target apparatus 2 is changed in the monitoring system. It is a figure which shows the operation | movement before and behind increasing the number of monitoring apparatuses in the conventional monitoring system. It is a figure which shows the operation | movement before and behind reducing the number of monitoring apparatuses in the conventional monitoring system.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram of a monitoring system including a monitoring target setting change device according to the present embodiment.

  The monitoring target setting change device 1 is connected to a communication network 4, and a plurality of monitoring target devices 2 and a plurality of monitoring devices 3 are connected to the communication network 4.

  Each monitoring target device 2 stores setting information including the address of one of the monitoring devices 3, and the monitoring target device 2 sends a notification signal indicating the state of the monitoring target device 2 to the monitoring device 3 corresponding to the address. It is supposed to send. In this way, the status of the monitoring target device 2 can be known in the monitoring device 3 by the notification signal. For example, the notification signal is a trap signal using an SNMP (Simple Network Management Protocol) protocol.

  FIG. 2 is a configuration diagram of the monitoring target setting changing device 1.

  The monitoring target setting change device 1 sets the monitoring device information storage unit 11 in which the monitoring device information regarding each monitoring device 3 is stored, and the monitoring target device 2 that transmits a notification signal to the monitoring device 3 for each monitoring device 3. A setting information storage unit 12 for storing setting information to be stored, a monitoring target device information storage unit 13 for storing monitoring target device information related to each monitoring target device 2, and a setting value for storing preset setting values A storage unit 14, a change request processing unit 15 that performs processing according to a change request transmitted when the number of monitoring devices 3 increases or decreases, and a resource information acquisition unit 16 that acquires resource information including resource usage from the monitoring device 3. The monitoring device identification information in the monitoring target device information in the monitoring target device information storage unit 13 decreases or decreases all the monitoring device identification information including the monitoring device identification information of the monitoring device that increases. And a allocation unit 17 to change the monitoring target apparatus information storage section 13 so that either all of the monitoring device identification information that does not include the monitoring device identification information of the viewing device.

  FIG. 3 is a configuration diagram of the monitoring device information storage unit 11.

  The monitoring device information storage unit 11 stores monitoring device information regarding each monitoring device 3. The monitoring device information includes monitoring device identification information (hereinafter referred to as monitoring device ID) indicating the corresponding monitoring device 3, an address of the monitoring device 3, and a CPU (arithmetic device) that is one of resources in the monitoring device 3. Rate (expressed in percentage, hereinafter referred to as “CPU usage rate”), usage rate of memory (storage element) that is one of the resources in the monitoring device 3 (expressed in percentage, Hereinafter, the memory usage rate), the usage rate of the traffic processing capacity that is one of the resources in the monitoring device 3, that is, the ratio of the actual traffic volume to the maximum volume corresponding to the processing capacity (expressed as a percentage (Hereinafter referred to as “traffic usage rate”).

  FIG. 4 is a configuration diagram of the setting information storage unit 12.

  The setting information storage unit 12 stores, for each monitoring device 3, setting information to be set in the monitoring target device 2 that transmits a notification signal to the monitoring device 3. The setting information stores the monitoring device ID indicating the corresponding monitoring device 3, the address of the monitoring device 3, that is, the address of the transmission destination of the notification signal, and the like.

  FIG. 5 is a configuration diagram of the monitoring target device information storage unit 13.

  The monitoring target device information storage unit 13 stores monitoring target device information regarding each monitoring target device 2. The monitoring target device information includes the address of the corresponding monitoring target device 2, the monitoring device ID of the monitoring device 3 that is the transmission destination of the notification signal transmitted from the monitoring target device 2, and the change of the setting information in the monitoring target device 2. A flag indicating necessity is stored. Flags “0” and “1” indicate that a change is necessary and unnecessary, respectively.

  FIG. 6 is a configuration diagram of the set value storage unit 14.

  The set value storage unit 14 stores threshold values set for each CPU usage rate, memory usage rate, and traffic usage rate (FIG. 6A). The threshold value is expressed as a percentage, like the CPU usage rate.

  The set value storage unit 14 stores weight values set for each CPU usage rate, memory usage rate, and traffic usage rate (FIG. 6B). Each weight value is 1, 2, and 1, for example.

(Operation of this embodiment)
Next, the operation of the monitoring system according to the present embodiment will be described.

  FIG. 7 is a flowchart when the monitoring device 3 transmits a change request to the monitoring target setting changing device 1.

  When the monitoring device 3 becomes a monitoring device (when the number of monitoring devices increases), or when the monitoring device 3 is no longer a monitoring device due to a failure or the like (when the number of monitoring devices decreases), A change request with information indicating whether the monitoring device 3 is a monitoring device or no longer a monitoring device, that is, increase / decrease information indicating an increase or decrease in the number of monitoring devices, is sent to the monitoring target setting change device 1 together with the address of the monitoring device 3. Transmit (S1).

  FIG. 8 is a flowchart when the monitoring device 3 transmits resource information to the monitoring target setting change device 1.

  When the monitoring device 3 receives the resource information acquisition request from the resource information acquisition unit 16 of the monitoring target setting change device 1 (S11: YES), the resource including the CPU usage rate, the memory usage rate, and the traffic usage rate of the monitoring device 3 Information is transmitted to the resource information acquisition unit 16 (S13).

  FIG. 9 is a flowchart when the monitoring target setting changing device 1 changes the setting information of the monitoring target device 2.

  This operation is performed when all the flags in the monitoring target device information storage unit 13 are “0”, that is, all the monitoring target devices 2 do not need to change the setting information, that is, the monitoring target device 2 sends a notification signal. This is started when it is sufficient to transmit to the address of the transmission destination in the setting information of the monitoring target apparatus 2.

  The change request processing unit 15 waits for a change request, increase / decrease information and address accompanying the change request, and when these are received (S101: YES), if the increase / decrease information indicates an increase in the number of monitoring devices, the monitoring device information storage unit 11 sets new monitoring device information and sets the address and a unique monitoring device ID in the monitoring device information, and sets new address information in the setting information storage unit 12 and sets the address as a transmission destination. If the increase / decrease information indicates a decrease in the number of monitoring devices, the monitoring device information storage unit 11 is searched for the monitoring device information including the address, and is deleted or disabled (S103).

  Next, the change request processing unit 15 instructs the resource information acquisition unit 16 to acquire resource information from the monitoring device 3 (S104).

  Thereby, the resource information acquisition unit 16 reads an address from each piece of monitoring device information in the monitoring device information storage unit 11 and performs the following processing for each address.

  That is, the resource information acquisition unit 16 transmits a predetermined resource information acquisition request to the monitoring device 3 corresponding to the address, that is, performs polling, and receives the resource information transmitted from the monitoring device 3 in response thereto. Receive (S105).

  Next, the resource information acquisition unit 16 reads each threshold value from the setting value storage unit 14, and whether the CPU usage rate, the memory usage rate, and the traffic usage rate included in the received resource information are all less than the corresponding threshold value. Or, it is determined whether at least one is greater than or equal to the threshold (S107), and if all three are determined to be less than the threshold (S107: YES), the address of the monitoring device 3 that has transmitted the resource information is assigned to the allocating unit 17 Notification is made (S109).

  Next, the resource information acquisition unit 16 determines whether or not the above processing has been performed for the monitoring devices 3 of all the read addresses (S111), and if the processing has not been performed for all the monitoring devices 3 (S111: NO), while returning to step S105, if all the monitoring devices 3 have been processed (S111: YES), the allocation unit 17 is instructed to start processing (S112).

  Thereby, the allocation unit 17 searches the monitoring device information storage unit 11 for the monitoring device information including the address for each address notified from the resource information acquisition unit 16, reads the monitoring device ID from the monitoring device information, The monitoring target device information storage unit 13 is changed so that the monitoring device ID of each monitoring target device information in the monitoring target device information storage unit 13 becomes one of all the read monitoring device IDs (S113).

Here, the allocating unit 17 reads each weight value from the setting value storage unit 14, and first calculates the free resource amount M for each read monitoring device ID using the equation (1).

  However, R1, R2, and R3 are a CPU usage rate, a memory usage rate, and a traffic usage rate in the monitoring device information including the corresponding monitoring device ID, respectively.

  r1, r2, and r3 are weight values for the CPU usage rate, the memory usage rate, and the traffic usage rate, respectively. As described above, the weight values are, for example, 1, 2, and 1, respectively, that is, are set so that the memory usage rate is particularly reflected in the free resource amount M.

For example, the weight value is set to 1, 2, and 1 as described above, and there are three corresponding monitoring device IDs. The CPU usage rate, the memory usage rate, and the traffic in the monitoring device information including the first monitoring device ID The usage rates are 30, 10, and 30, respectively, and the CPU usage rate, the memory usage rate, and the traffic usage rate in the monitoring device information including the second monitoring device ID are 50, 70, and 50, respectively. When the CPU usage rate, the memory usage rate, and the traffic usage rate in the monitoring device information including the monitoring device ID are 60, 60, and 60, respectively, the free resource amount M (M1) corresponding to the first monitoring device ID The free resource amount M (referred to as M2) corresponding to the second monitoring device ID and the free resource amount M (referred to as M3) corresponding to the third monitoring device ID are calculated as follows.

Next, the allocating unit 17 calculates the number N of monitoring target devices for each read monitoring device ID according to the equation (2).

  Here, Ntotal is the total number of the monitoring target devices 2.

  M is the amount of free resources calculated for the corresponding monitoring device ID.

  Mtotal is the sum of all the calculated free resource amounts.

When Ntotal is 900, the number N of monitoring target devices corresponding to the first monitoring device ID (referred to as N1), the number N of monitoring target devices corresponding to the second monitoring device ID (referred to as N2), and the third monitoring The number N of monitoring target devices (referred to as N3) corresponding to the device ID is calculated as follows.

  Next, the allocation unit 17 makes the total number of the monitoring device IDs in the monitoring target device information storage unit 13 equal to the number N of monitoring target devices calculated for the monitoring device ID for each of the monitoring device IDs read out. The monitoring device ID in the monitoring target device information storage unit 13 is changed as appropriate.

  Next, the allocating unit 17 changes all the flags in the monitoring target device information including the changed monitoring device ID from “0” to “1” (S114). The flag in the monitoring target device information including the monitoring device ID that is not changed remains “0”.

  Next, the allocation unit 17 notifies the change request processing unit 15 of all addresses in the monitoring target device information including the changed monitoring device ID (S115).

  Accordingly, the change request processing unit 15 performs the following processing for each notified address.

  That is, the change request processing unit 15 transmits a predetermined setting information change notification to the monitoring target device 2 corresponding to the address, that is, performs polling (S116).

  In contrast, the monitoring target device 2 transmits a predetermined setting information acquisition request to the change request processing unit 15.

  The change request processing unit 15 determines whether or not a setting information acquisition request has been received from the monitoring target apparatus 2 that is the transmission destination of the setting information change notification (S117). If the setting information acquisition request has not been received (S117). : NO), the setting information change notification is transmitted again (S116).

  If the change request processing unit 15 receives the setting information acquisition request (S117: YES), the change request processing unit 15 sends the monitoring target device information including the address (corresponding address notified from the allocation unit 17) from the monitoring target device information storage unit 13. Search, read the monitoring device ID from the monitoring target device information, search the monitoring device information storage unit 11 for the monitoring device information including the monitoring device ID, read the address from the monitoring device information, and send the destination equal to the address Is read from the setting information storage unit 12, and the setting information is transmitted to the monitoring target device 2 and stored (set) in the monitoring target device 2 (S191).

  Here, the change request processing unit 15 preferably uses, for example, the SNMP protocol as the notification signal protocol for the signal for transmitting the setting information, and thus the monitoring target apparatus 2 implements a new protocol. There is no need to do it.

  Next, the change request processing unit 15 changes the flag of the monitoring target device information from “1” to “0” (S121).

  When the above processing is performed for each notified address, the change of the setting information is completed.

  FIG. 10 is a sequence diagram when the setting information of the monitoring target device 2 is changed in the monitoring system.

  One monitoring device 3 is used when the monitoring device 3 becomes a monitoring device (when the number of monitoring devices increases), or when the monitoring device 3 is no longer a monitoring device due to a failure or the like (when the number of monitoring devices decreases). (T1), information indicating whether the monitoring device 3 has become a monitoring device or no longer a monitoring device, that is, a change request accompanied with increase / decrease information indicating an increase or decrease in the number of monitoring devices, together with the address of the monitoring device 3, It transmits to the change device 1 (T3).

  The change request processing unit 15 receives the change request, the increase / decrease information and the address accompanying the change request, and if the increase / decrease information indicates an increase in the number of monitoring devices, the change request processing unit 15 provides new monitoring device information in the monitoring device information storage unit 11 The address and unique monitoring device ID are set in the monitoring device information (T5), and new setting information is provided in the setting information storage unit 12 and the address is set as the transmission destination (T6). If the reduction in the number of devices is indicated, the monitoring device information including the address is searched from the monitoring device information storage unit 11 and deleted or disabled (T5).

  Next, the change request processing unit 15 instructs the resource information acquisition unit 16 to acquire resource information from the monitoring device 3 (T7).

  Thereby, the resource information acquisition unit 16 reads an address from each monitoring device information in the monitoring device information storage unit 11, transmits a resource information acquisition request to the monitoring device 3 corresponding to the address (T9), and the monitoring device 3 The resource information transmitted from is received (T11).

  Next, the resource information acquisition unit 16 reads each threshold value from the setting value storage unit 14, and whether the CPU usage rate, the memory usage rate, and the traffic usage rate included in the received resource information are all less than the corresponding threshold value. Alternatively, it is determined whether at least one is greater than or equal to the threshold value, and if all three are determined to be less than the threshold value, the allocation unit 17 is notified of the address of the monitoring device 3 that has transmitted the resource information (T13).

  For each address notified from the resource information acquisition unit 16, the allocation unit 17 searches the monitoring device information storage unit 11 for the monitoring device information including the address, reads the monitoring device ID from the monitoring device information (T15), The monitoring target device information storage unit 13 is changed so that the monitoring device ID of each monitoring target device information in the monitoring target device information storage unit 13 is one of all the read monitoring device IDs. Is changed from “0” to “1” (T17).

  Next, the allocation unit 17 notifies the change request processing unit 15 of the address of the monitoring target device 2 in the monitoring target device information including the changed monitoring device ID (T19).

  The change request processing unit 15 transmits a setting information change notification to the monitoring target device 2 corresponding to the notified address (T21).

  Each monitoring target device 2 receives the setting information change notification and transmits a setting information acquisition request (T23).

  The change request processing unit 15 receives the setting information acquisition request, and searches for monitoring target device information including the address of the monitoring target device 2 that has transmitted the setting information acquisition request (the corresponding address notified from the allocation unit 17). The monitoring device ID is read from the monitoring target device information, the monitoring device information including the monitoring device ID is searched, the address is read from the monitoring device information, and the setting information including the destination address equal to the address is set as the setting information. The setting information is read from the storage unit 12 (T25) and transmitted to the monitoring target device 2 (T27).

  Each monitoring target device 2 receives the setting information and replaces the original setting information with the setting information (T29).

  Each monitoring target device 2 transmits a notification signal indicating the state of the monitoring target device 2 to the monitoring device 3 corresponding to the transmission destination address in the replaced setting information. Thus, for example, in the increased number of monitoring devices 3, the state of the monitoring target device 2 can be quickly known by the notification signal.

  Therefore, according to the present embodiment, the monitoring target setting change device 1 determines the state of the monitoring target device 2 with respect to the monitoring device 3 indicated by the setting information transmitted from the monitoring target setting change device 1 to the monitoring target device 2. (1) Setting information in which setting information indicating the monitoring device is stored for each monitoring device of one or more monitoring devices 3 A storage unit 12; and (2) a monitoring target device information storage unit 13 that stores monitoring target device information including monitoring device identification information indicating any monitoring device for each monitoring target device of one or more monitoring target devices 2. (3) When the number of monitoring devices increases or decreases, all the monitoring device identification information (in the monitoring target device information) in the monitoring target device information storage unit 13 includes all the monitoring device identification information of the increased monitoring devices. An allocating unit 17 configured to be one of all the monitoring device identification information not including the visual device identification information or the monitoring device identification information of the monitoring device to be reduced, and (4) the monitoring changed in the monitoring target device information storage unit 13 A change request processing unit that reads setting information indicating a monitoring device corresponding to the device identification information from the setting information storage unit 12 and transmits the setting information to the monitoring target device 2 corresponding to the monitoring target device information including the monitoring device identification information. 15, the setting information is transmitted to the monitoring target device 2 corresponding to the monitoring target device information including the changed monitoring device identification information, and thus the monitoring target device required by the increase / decrease in the number of monitoring devices is transmitted. It is possible to change settings quickly and reduce operation. In addition, the time during which the monitoring system cannot be used can be shortened. As a result, maintainability can be improved.

  In addition, the monitoring target setting change device 1 includes a resource information acquisition unit 16 that acquires resource information including the resource usage rate from the monitoring device, and when the resource usage rate is equal to or higher than a preset threshold, Since the monitoring device identification information of the monitoring device is not included in all the monitoring device identification information, the notification signal can be prevented from being transmitted to the monitoring device.

  In addition, by setting the protocol of the signal for transmitting the setting information as the protocol of the notification signal, it is not necessary to implement a new protocol in the monitoring target device.

  In addition, the monitoring target setting change device 1 includes a resource information acquisition unit 16 that acquires resource information including a resource usage rate from the monitoring device, and the allocation unit 17 monitors the monitoring device in the monitoring target device information storage unit 13. By reducing the number of device identification information as the usage rate increases, the number of monitoring target devices that transmit a notification signal to the monitoring device can be reduced as the usage rate increases, that is, the number of monitoring target devices can be reduced. It can be appropriate depending on the amount of resources available.

DESCRIPTION OF SYMBOLS 1 ... Monitoring object setting change apparatus 2 ... Monitoring object apparatus 3 ... Monitoring apparatus 11 ... Monitoring apparatus information storage part 12 ... Setting information storage part 13 ... Monitoring object apparatus information storage part 14 ... Setting value storage part 15 ... Change request process part 16 ... resource information acquisition unit 17 ... allocation unit

Claims (4)

A monitoring target setting change device used in a monitoring system in which a notification signal indicating the state of the monitoring target device is transmitted to the monitoring device indicated by the setting information transmitted to the monitoring target device,
A setting information storage unit that stores setting information indicating the monitoring device for each monitoring device of the one or more monitoring devices;
A monitoring target device information storage unit that stores monitoring target device information including monitoring device identification information indicating any one of the monitoring devices for each monitoring target device of the one or more monitoring target devices;
When the number of monitoring devices increases or decreases, each monitoring device identification information in the monitoring target device information storage unit includes all the monitoring device identification information including the monitoring device identification information of the increasing monitoring device or the monitoring device of the decreasing monitoring device. An allocating unit that makes any one of all monitoring device identification information not including identification information;
The setting information indicating the monitoring device corresponding to the monitoring device identification information changed in the monitoring target device information storage unit is read from the setting information storage unit, and the monitoring target device corresponding to the monitoring target device information including the monitoring device identification information And a change request processing unit that transmits the setting information to the monitoring target setting changing device. A resource information acquisition unit that acquires resource information including a resource usage rate in the monitoring device from the monitoring device;
The monitoring device identification information of the monitoring device is not included in all the monitoring device identification information when the resource usage rate is equal to or higher than a preset threshold value. The monitoring target setting change device described. The monitoring target setting change device according to claim 1 or 2, wherein a protocol of a signal for transmitting the setting information is a protocol of the notification signal. A resource information acquisition unit that acquires resource information including a resource usage rate in the monitoring device from the monitoring device;
4. The monitoring target setting change device according to claim 1, wherein the allocation unit reduces the number of monitoring device identification information of the monitoring device in the monitoring target device information storage unit as the usage rate increases. 5.

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