JP2007049318A - Managed device, network management system, and information matching method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress an increase in a load applied to a managing device when matching agent information for indicating the state of a managed device between the managing device and the managed one when starting the managed device in a network management system having the managing and managed devices, and to start management operation by the managing device quickly. <P>SOLUTION: In the network management system, when an event occurs in the managed device 101 during the matching processing of the agent information, information on the occurred event is stored temporarily at the side of the managed device 101, and the trimming of the agent information is completed before the event information indicating the occurred event is notified to the managing device 100. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a managed device, a network management system, and an information matching method, and in particular, in a network management system having a management device (manager) and a managed device (agent), the management device and the managed device Between the agent information indicating the status of the managed device.

Conventionally, there is a network management system in which an agent is managed by a manager.
In such a network management system, the process of matching the information between the manager and the agent, that is, matching the agent information indicating the agent state that the manager has with the agent information indicating the agent state that the agent has, The agent information managed by the manager is kept in agreement with the agent information held on the agent side.

  In addition, in such a network management system, when an agent event such as removal of hardware parts occurs and the agent state changes, the manager side immediately manages the agent information managed by the manager and the agent side. (Patent document 1) which performs matching with the agent information held in

  Hereinafter, a method for combining information between managers and agents disclosed in Patent Document 1 will be described with reference to FIG.

  Here, a case will be described in which agent information is merged between a manager [1], which is a management apparatus, and an agent, which is a managed apparatus managed by the manager [1].

  In the network management system in which the manager manages the agent, when the agent is activated, after the activation process of starting up the agent software, the connection from the manager [1] to the agent is performed and the agent information matching process is started.

  Then, the manager [1] acquires agent information indicating the current state of the agent, and performs a process of combining the acquired agent information with the agent information of the agent managed on the manager [1] side. .

  During this information matching process, if an event occurs on the agent side, for example, a hardware component is removed, the agent updates the agent information indicating the state of the agent, and immediately updates the event information indicating the generated event. Notify the manager. The manager [1] holds event information notified from the agent. Then, the manager [1] reflects all the held event information to the agent information managed by the manager [1] after the information matching process is completed.

  For example, as shown in FIG. 7, when an event (1) occurs such that a hardware component is removed at the agent during the agent information matching process, the agent changes the agent information held by the agent to the event (1). ) Is updated to agent information indicating the state of the agent after occurrence, and event [1] information indicating the event (1) that has occurred is notified to the manager [1]. The manager [1] holds the notified event (1) information.

  Further, when an event (2) occurs, for example, that the remaining amount of the battery that is the power source becomes equal to or less than a reference value, the agent stores the agent information held by the agent after the occurrence of the event (2). The agent information indicating the agent state is updated, and event (2) information indicating the generated event (2) is notified to the manager [1]. The manager [1] holds the notified event (2) information.

  When the agent information matching process is completed, the manager [1] uses the stored event (1) information and event (2) information to the manager [1] obtained by the agent information matching process. 1] is reflected in the agent information managed by [1].

  In this manner, the conventional network management system immediately matches information when an event occurs on the agent side during the process of matching agent information between the manager and the agent. The agent information managed by] is kept consistent with the agent information on the agent side.

FIG. 7 shows the process of combining agent information between the manager [1] and the agent. This agent is managed not only by the manager [1] but also by other managers. In this case, when the agent is activated, the matching process of the agent information between each manager and the agent is sequentially performed.
Japanese Patent Laid-Open No. 9-162863

  However, in the conventional network management system, in the information matching process at the time of starting the agent, the management apparatus rewrites all the agent information of the managed apparatus held by the management apparatus into the agent information held by the managed apparatus. Therefore, the management apparatus has a problem that a load is applied in the process of matching the agent information, and it takes time to complete the matching process of the agent information.

  Further, in the conventional network management system, when an event such as a failure occurs on the managed device side during the agent information matching process, an interrupt is generated to notify the management device of event information indicating the event. Therefore, there has been a problem that a delay occurs in the process of combining agent information in the management apparatus.

  In the conventional network management system, the information matching process between the manager and the agent is performed immediately after the start of the managed device, and the state of the agent may not be stable immediately after the start. As a result, the event that occurs in the agent has a problem that event information indicating this is often not required to be reflected in the agent information managed by the management apparatus.

  The present invention has been made to solve the above-described conventional problems, and suppresses an increase in the load on the manager when matching agent information between the manager and the agent, such as when starting a network management system. An object of the present invention is to provide a managed device, a network management system, and an information matching method capable of promptly starting a management operation by a manager.

  In order to solve the conventional problem, a managed device according to the present invention is a managed device that is managed by one or more management devices connected to a network and whose state changes according to the occurrence of an event, An agent process management unit for managing information matching processing for matching agent information indicating the status of the managed device included in the management device with agent information indicating the latest status of the managed device, and the managed device An event detection unit that detects an event that occurs in the event, an event holding unit that stores event information indicating the event detected by the event detection unit, and an event management that manages event information indicating the event detected by the event detection unit And the event management unit is configured to execute an event in the event detection unit during the information matching process. Event information indicating the detected event is sequentially stored in the event holding unit, and each event information indicating each event detected and stored during the information matching process is stored in the information The management apparatus is notified after completion of the fitting process.

  As a result, in the network management system, even if an event such as a failure occurs on the managed device side during the agent information matching process, an interrupt that notifies the management device of event information indicating the event is generated. Therefore, the agent information can be quickly matched between the management apparatus and the managed apparatus.

  In the managed device according to the present invention, in the managed device, when the event management unit detects an event in the event detection unit during the information matching process, event information indicating the detected event is displayed. It is determined whether or not it should be sent to the management apparatus, and only event information determined to be sent is transmitted to the management apparatus after completion of the information matching process.

  As a result, only event information that is finally necessary from among the events held in the managed device can be notified to the management device. For example, the event information indicating this as a result, such as an event that occurs when the managed device is in an unstable state immediately after startup, does not need to be reflected in the agent information managed by the management device. Thus, notification of event information to the management apparatus can be efficiently performed without notification of the event information to the management apparatus.

  In addition, the managed device according to the present invention includes, in the managed device, agent information indicating the status of the managed device included in each managed device and agent information indicating the latest status of the managed device. A snapshot management unit that creates and manages each snapshot that is a difference, and a snapshot holding unit that stores a dedicated snapshot corresponding to each management device, and the information fitting process includes the snapshot An agent indicating the latest state of the managed device among agent information indicating the state of the managed device possessed by each management device based on the snapshot dedicated to each management device stored in the holding unit Only the difference from the information is rewritten.

  As a result, the management apparatus can reduce the load in the process of combining agent information, and the time required for combining agent information can be shortened.

  The network management system according to the present invention is a network management system having one or more management devices connected to a network and one or more managed devices managed by the management device, wherein the managed devices Is a managed device according to claim 1.

  As a result, in the network management system, even if an event such as a failure occurs on the managed device side during the agent information matching process, an interrupt that notifies the management device of event information indicating the event is generated. Therefore, the agent information can be quickly matched between the management apparatus and the managed apparatus.

  Also, the information matching method according to the present invention matches agent information between one or more management devices and a managed device that is managed by each management device and whose state changes due to the occurrence of an event. The management device side matches agent information indicating the state of the managed device included in the management device with agent information indicating the latest state of the managed device on the management device side. When an event occurs in the managed device during the agent information matching process, the event information of the event is sequentially stored in the managed device and the information matching process is performed. Each event information indicating each event detected and stored in is stored in the management device after the information matching process is completed.

  As a result, even if an event such as a failure occurs on the managed device side during the agent information matching process, it is possible to prevent an interruption that notifies the management device of event information indicating the event. Therefore, it is possible to quickly match the agent information between the management device and the managed device.

  Further, the information matching method according to the present invention is the information matching method, wherein the event information detected and stored during the information matching process on the managed device side is stored in the management device. It is determined whether to send to the management apparatus, and only the event information determined to be sent is notified to the management apparatus after the agent information matching process is completed.

  As a result, it is possible to notify only the necessary event information of the event information indicating the event that occurred during the agent information matching process to the management device, and to efficiently notify the event information to the management device. Can do.

  The information matching method according to the present invention is the information matching method according to the above information matching method, wherein the managed device side includes the agent information of the managed device included in each managed device and the latest status of the managed device. Each management device created by the managed device on the management device side by creating a dedicated snapshot corresponding to each management device, which is a difference between the agent information shown in FIG. Rewriting only the difference between the agent information indicating the state of the managed device and the agent information indicating the latest state of the managed device based on the dedicated snapshot corresponding to Features.

  As a result, the management apparatus can reduce the load in the process of combining agent information, and the time required for combining agent information can be shortened.

  According to the present invention, when agent information is combined between a management apparatus and a managed apparatus such as at the time of starting a network management system, an increase in the load on the management apparatus is suppressed, and a management operation by the management apparatus is promptly performed. Can be started.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
FIG. 1 is a diagram for explaining a network management system according to Embodiment 1 of the present invention.

  The network management system according to the first embodiment includes a management apparatus 100 that is connected to a network and manages the system, and a managed apparatus 101 that is managed by the management apparatus 100 and that changes its state when an event occurs. It is a thing. In this system, a plurality of managers, each of which is a management apparatus, manages an agent that is the managed apparatus 101. In FIG. 1, the management apparatus that manages the managed apparatus 101 is a manager [ 1] only. The system may include a plurality of agents that are managed devices managed by a plurality of managers, such as the managed device 101 described above.

  The managed device 101 includes a transmission / reception unit 102 that manages message transmission / reception processing between the management device 100 and the managed device 101, and a status of the managed device between the management device 100 and the managed device 101. An agent process management unit 103 that manages the combination of agent information indicating the status of the managed device 101, an information management unit 104 that manages the status of the managed device 101, and an agent that stores the agent information indicating the status of the managed device 101 And an information holding unit 105.

  The managed device 101 includes an event management unit 106 that manages an event that has occurred in the managed device 101, an event holding unit 107 that stores event information indicating an event that has occurred in the managed device 101, and a managed device 101. And an event detection unit 108 that detects an event that has occurred.

  The managed device 101 stores agent information indicating the status of the managed device 101 held by each of the plurality of management devices that manage the managed device 101 as dedicated agent information corresponding to each managed device. It includes a snapshot management unit 109 to manage and a snapshot holding unit 110 to store dedicated agent information corresponding to each management apparatus.

  Here, when the event detection unit 108 detects an event during the information matching process, the event management unit 106 sequentially stores event information regarding the detected event in the event holding unit 107, and performs the information matching process. Event information indicating each event detected and stored during execution is notified to the management apparatus 100 after the information matching process is completed. Further, the snapshot management unit 109 compares the agent information indicating the state of the managed device 101 included in the management device 100 with the agent information indicating the latest state of the managed device 101, and these agent information. Is generated as dedicated agent information corresponding to each management apparatus.

Next, the operation will be described.
In the following description of the operation, agent information between a specific management device (manager [1]) 100 and a managed device (agent) 101 among a plurality of management devices that manage the management target device 101 is described. A case of performing the fitting process will be described.

  First, the operation when no event occurs during the agent information matching process will be described with reference to FIG.

  In the network management system of the first embodiment, when the managed device 101 is started, a startup process for starting up the software of the managed device 101 is performed, and then the management device (manager [1]) 100 and the managed device are started. When the connection of the (agent) 101 is established, agent information indicating the state of the managed device 101 held by the management device 100 is sent from the management device 100 to the managed device 101.

  Then, the transmission / reception unit 102 of the managed device 101 receives the agent information from the management device 100 and sends the received agent information to the agent process management unit 103. In addition, the agent process management unit 103 instructs the information management unit 104 to acquire current agent information indicating the latest state of the managed device 101 from the agent information holding unit 105. Upon receiving this command, the information management unit 104 acquires the latest agent information indicating the state of the managed device 101 at the time of establishing the connection from the agent information holding unit 105 and outputs it to the agent processing management unit 103.

  The agent processing management unit 103 performs snapshot management of the agent information indicating the managed device 101 sent from the management device 100 and the latest agent information indicating the state of the managed device 101 acquired by the information management unit 104. Passed to part 109. The snapshot management unit 109 compares the agent information indicating the state of the managed device 101 sent from the management device 100 with the latest agent information indicating the state of the managed device 101, and compares these agent information. The difference is generated as a snapshot for manager [1].

  The snapshot management unit 109 sends the manager [1] snapshot to the snapshot holding unit 110 and also to the agent processing management unit 103. The manager [1] snapshot sent to the snapshot holding unit 110 is held here, and the manager [1] snapshot sent to the agent processing management unit 103 is sent to the management apparatus 100 via the transmission / reception unit 102. Sent.

  In the management apparatus 100, based on the manager [1] snapshot from the managed apparatus 101, the agent information related to the managed apparatus 101 of the management apparatus 100 is updated to match the agent information. At this time, the matching of the agent information performed by the management apparatus 100 is specifically, based on the manager [1] snapshot, out of the agent information indicating the state of the managed apparatus 101 included in the management apparatus 100. Only the difference with respect to the agent information indicating the latest state of the managed device 101 is rewritten.

  Then, the management device 100 notifies the managed device 101 of the completion of the alignment of the agent information.

  When the managed device 101 receives a notification that the agent information matching has been completed, the snapshot management unit 109 deletes the manager [1] snapshot held in the snapshot holding unit 110.

  Hereinafter, the process in which the snapshot management unit 109 generates the manager [1] snapshot will be described in detail with reference to FIGS. 3 (a) and 3 (b).

  The snapshot management unit 109 receives the latest agent information indicating the status of the managed device 101 acquired by the information management unit 104 (step S31), and further displays the status of the managed device 101 sent from the management device 100. When the agent information shown is acquired (step S32), a correspondence table T1 between the agent information held by the management apparatus 100 and the agent information held by the managed apparatus shown in FIG. For each item such as the remaining amount, it is determined whether or not there is a difference between the two agent information (step S33).

  Here, the left column of the correspondence table T1 shows the item of agent information, and here, the remaining battery level and the remaining ink level are shown. Further, the central column of the correspondence table T1 shows the agent information that the management apparatus 100 has for each item. In the agent information that the management apparatus 100 has, the remaining battery level is 90% and the remaining ink level is 45%. Yes. The right column of the correspondence table T1 shows the agent information of the managed device 101 by item. In the agent information of the managed device 101, the remaining battery level is 75% and the remaining ink level is 77%. It has become.

  Subsequently, the snapshot management unit 109 compares the agent information held by the management apparatus 100 and the agent information held by the managed apparatus 101 for each item of the correspondence table T1 shown in FIG. If there is no difference between the two agent information for any item, the snapshot (1) is not generated (step S35). On the other hand, if there is a difference between the two agent information for any item, a snapshot (1) indicating the difference for the item having the difference is generated (step S34).

  Next, an operation when an event occurs during the process of combining the agent information will be described with reference to FIGS.

  Here, the basic operation of the managed apparatus 101 when an event occurs during the agent information matching process is as shown in the flow of FIG.

  That is, when an event occurs during the agent information matching process, the managed device 101 detects the occurrence of the event (step S41) and holds event information indicating the detected event (step S42). Further, the managed device 101 updates the agent information indicating the current state of the managed device in accordance with the occurrence of the event (step S43), and holds the event information after completing the matching of the agent information. Is notified to the management apparatus 100 (step S44).

  More specifically, during the agent information matching process, as described above, the agent information indicating the status of the managed device 101 sent from the management device 100 and the status of the managed device 101 are displayed. A difference from the latest agent information shown is generated as a snapshot for the manager [1], the snapshot for the manager [1] is sent to the snapshot holding unit 110, and the snapshot for the manager [1] is sent to the transmission / reception unit 102. To the management apparatus 100.

  For example, when the event (1) occurs during the agent information matching process, the event detection unit 108 detects the occurrence of the event (1). Then, the event management unit 106 holds event information indicating the detected event (1) in the event holding unit 107, and the information management unit 104 further stores the agent information held in the agent information holding unit 105. , Updated as the event (1) occurs. Further, after that, when event (2) occurs and event detection unit 108 detects the occurrence of event (2), event management unit 106 stores event information indicating event (2) that has occurred in event holding unit 107. Further, the information management unit 104 updates the agent information held in the agent information holding unit 105 in accordance with the occurrence of the event (2).

  When the managed device 101 receives a notification from the management apparatus 100 that the matching of the agent information is completed, the snapshot management unit 109 generates the snapshot holding unit 110 generated during the matching process of the agent information. The event management unit 106 notifies the management apparatus 100 of event information related to the event (1) and event information related to the event (2).

  Then, the management device 100 updates the old agent information using the event information from the managed device.

  In the above description, matching of agent information between a specific management device (manager [1]) that is one of a plurality of management devices that manage the managed device 101 and the managed device 101 is performed. The agent information matching process between the managed device and the management device is performed between management devices other than the specific management device 100 that manages the managed device 101. However, it is performed in the same manner as described above.

  As described above, in the first embodiment, in the network management system having the plurality of management devices 100 and the managed device 101 managed by the plurality of management devices, the connection between the management device 100 and the managed device 101 is established. Thereafter, the difference between the latest agent information indicating the state of the managed device 101 at the time of connection establishment and the agent information indicating the state of the managed device 101 held by the management device 100 is used for the manager [1]. Since the difference agent information is obtained as a snapshot and is transmitted to the management apparatus 100, the management apparatus 100 side manages the managed apparatus included in the management apparatus 100 based on the transmitted manager [1] snapshot. Of the agent information indicating the status of 101, the latest status of the managed device 101 is indicated. Agent information matching processing can be performed by rewriting only the difference with respect to agent information, and the processing load required for agent information matching in the management device can be greatly reduced, and the agent information matching processing time Can be shortened.

  If an event occurs in the managed device 101 during the information matching process, the managed device 101 temporarily stores information on the generated event, and the matching of the agent information is completed. Since the event information indicating the occurred event is notified to the management apparatus 100 after that, it is possible to avoid the interruption for performing the event notification from the managed apparatus to the management apparatus during the information matching process as in the prior art. It is possible to further reduce the processing time for matching agent information.

(Embodiment 2)
Hereinafter, a network management system according to the second embodiment of the present invention will be described.
In the first embodiment, event information related to all events that occurred in the managed device during the information matching process is notified to the management device. However, in the second embodiment, only necessary events are managed. It is characterized by notifying the device.

FIG. 5 is a diagram for explaining a network management system according to the second embodiment.
As in the first embodiment, the network management system according to the second embodiment includes a plurality of management devices connected to the network and a managed device 101a managed by the management device.

  Then, the managed device 101a replaces the event management unit 106 that notifies the management device 100 of any event information indicating an event detected during the agent information matching process of the first embodiment. Among the event information indicating the events detected during the information matching process, the event management unit 106a that selects the necessary information in the management apparatus 100 and notifies the management apparatus 100 of the event information is provided.

  The event management unit 106a operates in the same manner as the event management unit 106 of the first embodiment except that event information to be notified to the management apparatus is selected. The configuration of the managed apparatus 101a of the second embodiment other than the event management unit 106a is the same as that of the first embodiment.

Next, the operation will be described.
The second embodiment is the same as the first embodiment except for the operation of selecting event information to be notified to the management apparatus after the agent information matching process is completed. An event determination method will be described with reference to FIG.

  Since the event management unit 106a can predict what kind of event will occur on the managed device 101 side, it notifies the management device based on the correspondence table T2 (see FIG. 6B) created in advance. The event information to be determined is determined. The correspondence table T2 shows the contents of the event that occurs and the notification destination that notifies the event information indicating the event that has occurred.

  In this correspondence table T2, event information indicating an event that the remaining battery level or remaining ink level is below a certain reference value should be notified to both the management device and the managed device. The event information indicating such an event is information that should be notified only to the managed device, that is, notification to the management device is unnecessary.

  For example, for the event that occurred in the managed device 101a during the information matching process, event information indicating each event is held in the event holding unit 107, and therefore the event management unit 106a has the managed device 101a. When the notification indicating that the agent information matching process has been completed from the management apparatus 100 is received, whether the event information held in the event holding unit 107 should be notified to the management apparatus 100 is determined. A check is made according to the correspondence table T2 (step S51).

  For example, if the events (1) and (2) that occurred during the agent information matching process that is performed when the managed device 101a is started are an internal error and a decrease in the remaining battery level below the reference value, Regarding the event information indicating the event (1), the management unit 106a is notified only of the managed device 101a from the correspondence table T2 illustrated in FIG. It is determined that the event information is not to be notified to 100, and the event information is discarded (step S53).

  On the other hand, for the event information indicating the event (2), the event management unit 106a is notified of the event information indicating the remaining battery level from both the managed device and the management device from the correspondence table T2 illustrated in FIG. Therefore, it is determined that the event information should be notified to the management apparatus 100 (step S52).

  Then, the event management unit 106 a extracts event information determined to be notified to the management apparatus from the event information holding unit 107 after completion of the information matching process, and transmits the event information to the management apparatus 100 via the transmission / reception unit 102.

  As described above, by notifying only event information that is finally required from among the events held in the managed device 101a, this occurs when the state is not stable, such as immediately after the managed device 101a is started. There is no need to notify the event, and the information matching process can be made highly efficient.

  In such a second embodiment, after establishing a connection between the management apparatus 100 and the managed apparatus 101a in the network management system having the plurality of management apparatuses 100 and the managed apparatus 101a managed by the plurality of management apparatuses. The difference between the latest agent information indicating the state of the managed device 101a at the time of connection establishment and the agent information indicating the state of the managed device 101a held by the management device 100 is obtained, and Since the agent information is transmitted to the management apparatus 100, the matching process of the agent information on the management apparatus 100 side is performed by rewriting only the difference between the agent information of the management apparatus 100 and the agent information of the managed apparatus 101a. Agent information on the management device. The processing load at the time of Align lump can be greatly reduced.

  In the second embodiment, when an event occurs in the managed apparatus 101a during the information matching process, the management apparatus 100 displays event information indicating the generated event after the matching of the agent information is completed. Therefore, it is possible to avoid an interrupt for performing event notification from the managed device to the management device during the information matching process.

  Further, in the second embodiment, since only the necessary information is selected by the management apparatus 100 from the event information indicating the events detected during the matching process of the agent information, the management apparatus 100 is notified. Of the event information indicating the events that occurred during the agent information matching process, only the event information necessary for the management device can be notified to the management device, and the event information can be efficiently notified to the management device. be able to.

  In the network management system according to the present invention, the information matching process for matching the agent information indicating the status of the managed device between the management device and the managed device can be performed quickly without increasing the load on the management device. It can be applied, and can be applied to uses such as Internet home appliances, which will increase in the future, and has high industrial applicability.

It is a block diagram of the managed apparatus of the network management system by Embodiment 1 of this invention. It is a figure for demonstrating the information matching process performed with the network management system by Embodiment 1 of this invention, and has shown the case where an event does not generate | occur | produce during an information matching process. It is a figure for demonstrating the information matching process performed with the network management system by Embodiment 1 of this invention, and has shown the case where an event generate | occur | produced during the information matching process. It is a figure explaining the method to create a snapshot with the managed apparatus by Embodiment 1 of this invention. It is a figure which shows the corresponding | compatible table T1 used by creation of the snapshot in the management apparatus by Embodiment 1 of this invention. It is a figure for demonstrating the information matching process at the time of the event generation in the managed device by Embodiment 1 of this invention, and shows operation | movement of the event management part when an event generate | occur | produces during an information matching process Yes. It is a block diagram of the managed apparatus of the network management system by Embodiment 2 of this invention. It is a figure for demonstrating the method to select the event which should be notified to a management apparatus with the managed apparatus by Embodiment 2 of this invention. It is a figure which shows the corresponding | compatible table T2 used by selection of the event which should be notified to the management apparatus in the managed apparatus by Embodiment 2 of this invention. It is a figure for demonstrating the information matching process performed between a manager and an agent in the conventional network management system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Management apparatus 101,101a Managed apparatus 102 Transmission / reception part 103 Agent processing management part 104 Information management part 105 Agent information holding part 106,106a Event management part 107 Event holding part 108 Event detection part 109 Snapshot management part 110 Snapshot holding part

Claims (7)

A managed device that is managed by one or more management devices connected to the network and whose state changes due to the occurrence of an event,
An agent processing management unit for managing information matching processing for matching agent information indicating the status of the managed device of the management device with agent information indicating the latest status of the managed device;
An event detection unit for detecting an event occurring in the managed device;
An event holding unit for storing event information indicating an event detected by the event detection unit;
An event management unit for managing event information indicating an event detected by the event detection unit,
The event management unit
When an event is detected by the event detection unit during the information matching process, event information indicating the detected event is sequentially stored in the event holding unit, and is detected and stored during the information matching process. Each event information indicating each event is notified to the management apparatus after the information matching process is completed.
A managed device characterized by that. The managed device according to claim 1,
The event management unit
When an event is detected by the event detection unit during the information fitting process, it is determined whether or not event information indicating the detected event should be sent to the management device, and only event information that is determined to be sent , Transmit to the management device after completion of the information matching process,
A managed device characterized by that. The managed device according to claim 1,
A snapshot management unit that creates and manages each snapshot that is a difference between each agent information indicating the status of the managed device included in each management device and agent information indicating the latest status of the managed device; ,
A snapshot holding unit for storing a dedicated snapshot corresponding to each management device,
The information matching process includes the agent information indicating the state of the managed device of each management device based on a snapshot dedicated to each management device stored in the snapshot holding unit. Rewrite only the difference with the agent information indicating the latest status of the managed device.
A managed device characterized by that. A network management system having one or more management devices connected to a network and one or more managed devices managed by the management device,
The managed device is the managed device according to claim 1.
A network management system characterized by that. A method of combining agent information between one or more management devices and a managed device that is managed by each management device and whose state changes due to the occurrence of an event,
On the management device side, the agent information indicating the status of the managed device included in the management device is matched with the agent information indicating the latest status of the managed device,
When an event occurs in the managed device during the agent information matching process on the managed device side, event information of the event is sequentially stored in the managed device,
Each event information indicating each event detected and stored during the information matching process is notified to the management apparatus after the information matching process is completed.
Information combining method characterized by the above. In the information fitting method according to claim 5,
On the managed device side, it is determined whether or not each event information detected and stored during the information matching process should be sent to the management device, and event information determined to be sent Only notify the management device after the completion of the agent information matching process,
Information combining method characterized by the above. In the information fitting method according to claim 5,
The managed device side compares the agent information of the managed device included in each managed device with the agent information indicating the latest state of the managed device, and is the difference between the agent information, Create a dedicated snapshot for each management device,
Based on the dedicated snapshot corresponding to each management device created by the managed device on the management device side, among the agent information indicating the status of the managed device that the management device has, the managed device Rewrite only the difference with the agent information indicating the latest status of
Information combining method characterized by the above.

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