JP2016136705A - Dispersion type network management system, network management device, network device, dispersion type network management method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable real-time resource management corresponding to urgency for an operation management function without increasing the cost and increasing the load of a network management device.SOLUTION: A network management device 1 comprises operation management function parts (15a to c) having a network management function containing at least one of a configuration management function, a trouble management function and a performance management function to which processing priorities are preset, a connection control part 11 for responding a connection request received from a dispersion management agent 21 on the basis of a resource use condition of each operation management function part (15a to c), and a resource management part 13 for calculating the number of rental resources to be leased to the operation management function part (15a to c) on the basis of the resource use condition and processing priority of each operation management function part (15a to c).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a technique for performing resource management according to urgency in a network management system.

  Conventionally, in network operation management, a network management system (NMS) (hereinafter also referred to as NMS) identifies the network status and faults so that faults can be discovered early and recovered quickly. Is responsible. NMS includes a configuration management function that manages information such as device configuration, routes, and bandwidth in the network, a fault management function that identifies the cause of a fault from alarms and logs, and a performance management function that monitors information about equipment and network resources. Has multiple management functions.

  2. Description of the Related Art In recent years, network management information has become more complicated and enlarged with the increase in the number of network facilities and the development of network function virtualization technologies represented by SDN (Software Define Network) and NFV (Network Function Virtualization). For this reason, the load on the conventional NMS (FIG. 1A) that centrally processes network management information increases, making it difficult to process the information in real time. Therefore, a distributed NMS (FIG. 1B) that attempts to offload the processing load by performing the primary processing of the information in a distributed manner on the network side has been studied.

  In Patent Document 1, in order to solve the shortage of resources in the client / server system, when the active server exceeds the load threshold, resources are provided by allocating a new process to the spare server to solve the above problem. Yes. Conventional centralized NMS mainly collects network management system and collects management information in the network. However, distributed NMS is mainly distributed management agent on the network side and collects management information. As a result, processing can be performed at high speed.

  Further, in Patent Document 2, the resource allocation control server collects load information indicating the load when executing the application from the service providing server that executes the application. Then, the resource allocation control server determines whether or not the load indicated by the collected load information exceeds a predetermined threshold value. In addition, when the resource allocation control server determines that the load exceeds a predetermined threshold, it uses the collected load information and the load information collected in the past to calculate the increase / decrease amount of the load when executing the application. calculate. Then, the resource allocation control server determines the resource amount to be allocated to the application based on the calculated increase / decrease amount.

JP 2007-310749 A JP 2014-164715 A

“Proposal of distributed network configuration management function using graph database” IEICE Technical Report vol.113, no. 492, pp. 109-114.

  However, in the distributed NMS, since each distributed management agent operates independently, the NMS asynchronously receives a plurality of network management information such as configuration information, failure information, and performance information. The NMS has a mechanism for sequentially allocating resources (CPU and memory) necessary for processing the received network management information. As a result, for example, in the case of a network failure, when other management functions are consuming resources even though RCA (Root Cause Analysis) by failure management is prioritized, the RCA immediately There is a problem of lack of sex. In order to solve this problem, it is necessary to determine the performance requirements of the NMS so that each management function can be processed at the same time, leading to an increase in equipment cost.

  In Patent Document 1, as a method for resolving a resource shortage in a client / server system, when the active server exceeds a load threshold, a new process is allocated to a spare server to provide resources and solve the resource shortage. Yes. However, there is a concern that the equipment cost will increase due to the introduction of the spare server. In the distributed NMS, management information is temporarily processed on the distributed management agent side, so that the main load of the server system is due to database access, and there are few benefits from balancing multiple server processes.

  In Patent Document 2, the normality of an application is ensured by dynamically changing the amount of resources allocated to each application. However, in a distributed NMS, the execution time of each process is relatively short. Therefore, resource allocation for a large number of processes that occur in bursts at the time of a failure or the like becomes a problem.

  The present invention has been made in view of such circumstances, and does not increase the cost, and does not increase the load of the network management device, so that the resource management according to the urgency can be performed for the operation management function. An object of the present invention is to provide a distributed network management system, a network management device, a network device, a distributed network management method, and a program.

  (1) In order to achieve the above object, the present invention takes the following measures. That is, a distributed network management system in which a network management device performs resource management based on a plurality of types of network management information collected by a plurality of network devices, wherein each network device has a plurality of types of networks via a network. A distributed management agent that collects management information, performs association between necessary network management information from the collected plural types of network management information, and transmits a connection request and the associated network management information to the network management device; The network management device includes an operation management function unit having a network management function including at least one of a configuration management function, a failure management function, and a performance management function, in which processing priorities are set in advance, and each of the operation management function units Based on resource usage And calculating the number of resources to be lent to the operation management function unit based on the connection control unit responding to the connection request received from the distributed management agent, the resource usage status of each operation management function unit, and the processing priority. And a resource management unit.

  In this way, each network device collects a plurality of types of network management information via the network, performs association between necessary network management information from the collected types of network management information, and requests connection to the network management device. The associated network management information is transmitted, and the network management device has a network management function including at least one of a configuration management function, a fault management function, and a performance management function, in which processing priority is set in advance. Based on the resource usage status of the management function unit, respond to the connection request received from the distributed management agent, and based on the resource usage status and processing priority of each operation management function unit, the number of resource loans to be lent to the operation management function unit Since it is calculated, each network device receives a connection request for each network device. Based on the resource usage and processing priorities parts, calculates the number of resource lending, to high manageability unit urgency, it can be carried out preferentially lending resources in real time.

(2) Further, in the distributed network management system of the present invention, the resource management unit sets R as a current number of resource lending of the own device, X denotes a set of operation management function units managed by the own device, and the operation management function unit which is the connection request from the device to the x, current resource number borrowing of the operation management unit x and R _x, a maximum resource lendable number to the operation management unit x and R _{max_x,} the management When the connection request to the unit x per unit time is r _x and the processing priority of the operation management unit x is d _x , the maximum resource lending number is calculated based on the following equation.

  With this configuration, it is possible to calculate the number of resource lending corresponding to the urgency ratio to the operation management function unit by using the resources of the network management device to the maximum.

  (3) In the distributed network management system according to the present invention, the distributed management agent includes a management information collection function for collecting a plurality of types of network management information via the network, and a network required from the collected network management information. A management information processing function for associating management information; and a management information transmission function for transmitting a connection request and the associated network management information to the network management apparatus.

  In this way, the distributed management agent collects a plurality of types of network management information via the network, associates necessary network management information from the collected network management information, and makes a connection request and association to the network management device. Since the network management information is transmitted, the processing load in the system can be distributed and the entire system can be processed at high speed.

  (4) The network management device of the present invention is a network management device that performs resource management based on a plurality of types of network management information collected by a plurality of network devices, and has a processing priority set in advance. An operation management function unit having a network management function including at least one of a configuration management function, a failure management function, and a performance management function, and a distributed management agent included in the network device based on the resource usage status of each operation management function unit A connection control unit that responds to a connection request received from the resource management unit that calculates the resource lending number to be lent to the operation management function unit based on the resource usage status and the processing priority of each operation management function unit; It is characterized by providing.

  As described above, the network management apparatus has a network management function including at least one of a configuration management function, a failure management function, and a performance management function, in which processing priorities are set in advance, and uses resources of each operation management function unit. Based on the situation, respond to the connection request received from the distributed management agent of the network device, and calculate the number of resources to be lent to the operation management function unit based on the resource usage status and processing priority of each operation management function unit Therefore, upon receiving a connection request for each network device, the number of resource lending is calculated based on the resource usage status and processing priority of each operation management function unit, and priority is given to the operation management function unit with high urgency in real time. It is possible to lend resources.

(5) Further, in the network management device of the present invention, the resource management unit sets R as the current resource lending number of the own device, and X denotes a set of operation management function units managed by the own device. the operation management function unit which is the connection request as x, the current resource number borrowing of the operation management unit x and R _x, a maximum resource lendable number to the operation management unit x and R _{max_x,} the operation management unit x The maximum resource lending number is calculated based on the following equation, where r _x is the connection request per unit time to _x and the processing priority of the operation management unit x is d _x .

  With this configuration, it is possible to calculate the number of resource lending corresponding to the urgency ratio to the operation management function unit by using the resources of the network management device to the maximum.

  (6) Moreover, the network device of the present invention is a network device that transmits a plurality of types of network management information to the above-described network management device, and is a management that collects a plurality of types of network management information via the network. An information collection function, a management information processing function for associating necessary network management information from the collected network management information, and a management information transmission function for transmitting a connection request and the associated network management information to the network management device And a distributed management agent.

  As described above, the network device is a network device that transmits a plurality of types of network management information to the network management device described above, collects a plurality of types of network management information via the network, and collects the collected network management information. Necessary network management information is correlated from information, and connection requests and associated network management information are transmitted to the network management device, so that the processing load in the system is distributed and the entire system is processed at high speed Can do.

  (7) The distributed network management method of the present invention is a distributed network management method in which the network management device performs resource management based on a plurality of types of network management information collected by a plurality of network devices, Each network device collects a plurality of types of network management information via the network, performs association between necessary network management information from the collected plurality of types of network management information, and connects the network management device with the connection request. A network management function including at least one of a configuration management function, a failure management function, and a performance management function, in which the processing priority is set in advance in the network management device, Resources for each operation management function Based on the usage status, if resource lending is not possible, a notification of connection disapproval and retransmission time is sent to the distributed management agent of the network device, and if resource lending is possible, to the distributed management agent, A step of transmitting a notification of connection permission, a step of calculating the number of resource lending to be lent to the operation management function unit based on the resource usage status and the processing priority of each operation management function unit, and lending the resource; When the resource is lent, the network management information is updated.

  In this way, each network device collects a plurality of types of network management information via the network, performs association between necessary network management information from the collected types of network management information, and requests connection to the network management device. The network management information is transmitted and the network management device has a network management function including at least one of a configuration management function, a failure management function, and a performance management function. Based on the resource usage status of the management function unit, if resource lending is not possible, a notification of connection disapproval and retransmission time is sent to the distributed management agent of the network device. If resource lending is possible, the distributed management agent A notification of connection permission is sent to each operation Based on the resource usage status and processing priority of the function unit, calculate the number of resource lending to be lent to the operation management function unit, lend the resource, and update the network management information when lending the resource, Upon receiving a connection request for each network device, calculate the number of resource lending based on the resource usage status and processing priority of each operation management function unit, and give priority to resources in real time for the highly urgent operation management function unit Can be lent.

  (8) The program of the present invention is a network management device program for performing resource management based on a plurality of types of network management information collected by a plurality of network devices, and processing priority is set in advance. A network management function including at least one of a configuration management function, a failure management function, and a performance management function, and a connection received from a distributed management agent of the network device based on the resource usage status of each operation management function unit A series of processes including a process for responding to a request and a process for calculating the number of resources lent to the operation management function unit based on the resource usage status and the processing priority of each operation management function unit. It is made to perform.

  As described above, the network management apparatus program for managing resources of the network management system has a network management function including at least one of a configuration management function, a fault management function, and a performance management function, in which processing priority is set in advance. In response to the connection request received from the distributed management agent of the network device based on the resource usage status of each operation management function unit, the operation management is performed based on the resource usage status and processing priority of each operation management function unit. Since the number of resource lending to be lent to the functional unit is calculated, the number of resource lending is calculated based on the resource usage status and processing priority of each operation management functional unit upon receiving a connection request for each network device, which is highly urgent It is possible to lend resources preferentially in real time to the operation management function unit.

  (9) A program of the present invention is a program for a network device that transmits a plurality of types of network management information to the network management device, and a process for collecting a plurality of types of network management information via a network; A series of processes including a process of associating necessary network management information from the collected network management information and a process of transmitting a connection request and the associated network management information to the network management apparatus is executed on a computer It is characterized by making it.

  As described above, in a network device program for transmitting a plurality of types of network management information to the network management device, a plurality of types of network management information are collected via the network, and necessary network management information is obtained from the collected network management information. Since the connection request and the associated network management information are transmitted to the network management apparatus, the processing load in the system can be distributed and the entire system can be processed at high speed.

  According to the present invention, the network management information is acquired without increasing the load of the network management device, the number of resource lending is calculated based on the resource usage status and processing priority of the operation management function unit of the NMS, It is possible to lend resources preferentially in real time to operation management function units with high urgency.

It is a schematic block diagram of a centralized network management system. It is a schematic block diagram of a distributed network management system. 1 is a schematic configuration diagram of a distributed network management system according to the present embodiment. It is a schematic block diagram of the network device concerning this embodiment. It is a sequence diagram which shows the basic operation | movement of the distributed network management system which concerns on this embodiment. It is a flowchart which shows the process sequence which calculates the resource lending number performed with a resource management part. It is a flowchart which shows the resource return process sequence from the operation management part x performed with a resource management part. It is an image figure which shows the resource lending condition to the operation management function part in NMS. It is an image figure which shows the resource lending condition to the operation management function part in NMS. It is the graph which showed the result of having verified the resource usage condition of distributed NMS. It is the graph which showed the result of having verified the resource usage condition of distributed NMS.

  In the distributed NMS, the present inventors have sequentially lent out the resources necessary for processing the received network management information. As a result, the resources are allocated to the management function unit that is to preferentially perform processing. Inability to lend and lack of immediacy, and in order to solve this problem, it becomes necessary to determine that each management function unit can be processed simultaneously regarding the performance requirements of NMS, resulting in an increase in equipment costs The amount of resource lending based on the resource usage status and processing priority of each operation management function unit while distributing the processing load in the system and performing high-speed processing as a whole system It is possible to lend resources preferentially in real time to the highly urgent operation management function unit. Out, it has led to the present invention.

  That is, the distributed network management system of the present invention is a distributed network management system in which a network management device performs resource management based on a plurality of types of network management information collected by a plurality of network devices, and each of the network devices Collects a plurality of types of network management information via a network, associates necessary network management information from the collected types of network management information, and requests connection to the network management device and the associated network management. An operation management function having a network management function including at least one of a configuration management function, a fault management function, and a performance management function, each of which includes a distributed management agent for transmitting information, and in which the processing priority is set in advance Department and each A connection control unit that responds to a connection request received from the distributed management agent based on the resource usage status of the management function unit, and the operation management based on the resource usage status and the processing priority of each operation management function unit And a resource management unit that calculates the number of resource lending to be lent to the functional unit.

  Accordingly, the present inventors receive a connection request from each network device, calculate the number of resource lending based on the resource usage status and processing priority of each operation management function unit of the NMS, and have high urgency It is now possible to lend resources preferentially in real time to the operation management function section. Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

  FIG. 2 is a diagram showing a schematic configuration of the distributed network management system according to the present embodiment. The distributed network management system includes a network management device 1 and a plurality of network devices 2. In order to make the explanation easy to understand, only one network device 2 is illustrated, but the number is not limited to one.

  The network management device 1 includes at least a connection control unit 11, a resource management unit 13, and one or more operation management function units (15-ac). Each operation management function unit includes a storage device (17-ac). Each network device 2 includes a distributed management agent 21.

  Next, each function which comprises the network management apparatus 1 is demonstrated. The connection control unit 11 receives a connection request from the distributed management agent 21 of the network device 2, makes a resource lending request to the resource management unit 11, and confirms whether or not the resource can be lent received from the resource management unit 11. Is transmitted to the distributed management agent 21. When the resource can be lent, the connection control unit 11 connects the distributed management agent 21 to a desired operation management function unit (15-ac).

  The resource management unit 13 responds to the resource lending request from the connection control unit 11 based on the current resource usage status and the priority of the operation management function unit (15-ac) set in advance as the connection request destination. Calculate the number of loans. Based on the calculated result of resource lending, the result of confirming whether or not the resource can be lent is transmitted to the connection control unit 11.

  The operation management function units (15-ac) indicate a set of network management functions (hereinafter also simply referred to as management functions) such as a configuration management function, a failure management function, and a performance management function. For example, all configuration management functions may be handled as one operation management function unit, or sub-functions of the configuration management function such as MPLS path information between network devices may be defined as one operation management function unit. In addition, by deploying multiple operation management function units with the same function and defining the operation management function unit connected by the network equipment monitored by the distributed management agent, the same management function can be prioritized according to the equipment. Control can be performed. The operation management function unit can operate a plurality of threads or processes independently of each other, and can operate in parallel with requests from a plurality of distributed management agents.

  FIG. 3 is a schematic configuration diagram of a network device according to the present embodiment. The network device 2 includes a distributed management agent 21. The distributed management agent 21 has a management information collection function 25, a management information processing function 27, and a management information transmission function 29.

  The management information collection function 25 collects network configuration information, failure information, and performance information obtained from MIB (Management Information Base), command output results, SNMP traps, and syslogs held by the network device 2. The management information processing function 27 filters unnecessary information from each piece of information collected by the management information collection function 25 and links related information to process the information. The management information transmission function 29 transmits the information processed by the management information processing function 27 to the network management apparatus 1.

  Next, the basic operation of the distributed network management system according to the present embodiment will be described with reference to FIGS. FIG. 4 is a sequence diagram showing the basic operation of the distributed network management system according to this embodiment. First, in order to transmit network management information from the distributed management agent 21 of the network device 2 to the network management device 1, a connection request is made to the connection control unit 11 of the network management device 1 (step S1). The connection request includes information for identifying the operation management function unit x (x corresponds to one of the operation management function units (15-ac) in FIG. 2) as the connection request destination. In response to the connection request from the distributed management agent, the connection control unit 11 makes a resource lending request to the resource management unit 13 as to whether or not the resource lending number of the operation management function unit x is empty (step S2). The resource lending request includes information for identifying the operation management function unit x.

  The resource management unit 13 receives a resource lending request from the connection control unit 11 and calculates the resource lending number of the operation management function unit x (step S3). If resource lending is not possible as a result of calculating the resource lending number, the connection control unit 11 is notified that resource lending is not possible (step S4-1). The notification information indicating that the resource cannot be rented includes the product of information indicating that the resource cannot be lent, the processing priority of the operation management function unit x obtained by resource calculation, and the number of connection requests to the operation management function unit x per unit time. Contains a value. The connection control unit 11 transmits to the distributed management agent 21 the connection disapproval notification received from the resource management unit 13 (step S5-1). The connection disapproval notification information includes information indicating connection disapproval and information indicating a retransmission time (hereinafter also referred to as a timeout time) derived from the connection disapproval notification information received from the resource management unit. .

  On the other hand, when the resource management unit 13 receives a resource lending request from the connection control unit 11 and performs resource calculation, if the resource lending is possible, the connection control unit 11 is notified that the resource lending is possible (step) S4-2). The resource lending notification information includes information indicating resource lending. The connection control unit 11 transmits the connection permission notification received from the resource management unit 13 to the distributed management agent 21 (step S5-2). The connection permission notification information includes information indicating connection permission.

  Next, after receiving a notice that the lending is possible from the resource management unit 13, the connection management unit 11 starts up a program related to the operation management function unit x and waits for update information from the distributed management agent 21. At this time, the connection control unit 11 sets a time-out time, and when time-out occurs, terminates the program related to the operation management function unit x and returns the resource to the resource management unit 13.

  Next, the distributed management agent 21 receives notification of connection permission from the connection control unit 11 and transmits network management information to the operation management function unit x (step S6). The operation management function unit x updates the network management information stored in the storage device of the operation management function unit x using the network management information acquired from the distributed management agent. The operation management function unit x returns the resource borrowed from the resource management unit 13 to the resource management unit 13 after the information update is completed (step S7). Then, the operation management function unit x transmits a management information update completion notification to the distributed management agent 21 (step S8). The management information update completion notification information includes information indicating that the update has been normally completed.

FIG. 5 is a flowchart illustrating a processing procedure for calculating the number of resource lending executed by the resource management unit 13. The resource management unit 13 receives a resource lending request from the connection control unit 11 to the operation management function unit x (step S101). To a connection request to the operation management function unit x the distributed management agent 21 connecting the control unit 11 has received is desired, compares the current load L _c and load threshold L _t of NMS (step S102). L _c and results of comparison with the _{L t,} if _{L c} is less than or equal to _{L t,} 1 resource borrowing number _{R x may} manageability unit x is borrowed from the resource management section 13 added (step S103 ) Notifying the connection control unit 11 that the resource can be lent (step S104).

On the other hand, if L _c exceeds L _t in step S102, R indicating the current resource lending number of the NMS, the resource number R _x currently borrowed by the operation management function unit x, and the operation management function unit x The connection request number r _x per unit time is acquired (step S105). R, the r _x, and the processing priority d _x of predefined operation management function unit x, the R _{max_x} the operation management function unit x indicates the maximum number of resources that can borrow using Equation (1), is calculated (Step S106).

Result of comparison of R _x and _{R max_x} (step S107), if _{R x} is less than _{R max_x,} the process proceeds to step S103. On the other hand, as a result of comparing _Rx and _{Rmax_x} (step S107), when _Rx is _{equal to} or greater than _{Rmax_x} , the connection control unit 11 is notified that resource lending is not possible (step S108).

FIG. 6 is a flowchart showing a resource return processing procedure from the operation management unit x executed by the resource management unit 13. The resource management unit 13 receives a resource return request from the operation management function unit x (step S201). The operation management function unit x subtracts 1 from the resource borrowing number _Rx borrowed from the resource management unit 13 (step S202).

7A and 7B are image diagrams showing resource lending statuses to the operation management function unit in the NMS. The NMS has operation management function units A, B, and C. FIG. 7A is an image diagram showing a resource lending status to each operation management function unit in the NMS when L _c is _{equal to} or less than L _t . Since L _c is _{equal to} or less than L _t , all resources required by each operation management function can be lent out.

On the other hand, FIG. 7B is an image diagram showing a resource lending status of each management function unit in the NMS when L _c is greater than L _t. For example, the current resource lending number R = 36 of the NMS and the operation priorities of the operation management function units A, B, and C are preset as d _a = 5, d _b = 10, and d _c = 2, respectively. The connection request to each management function unit per unit time is calculated as r _A = 20, r _B = 30, and r _C = 5. From these information and the equation (1), the maximum resource rentable number to each management function unit is calculated as R _{max_A} = 9, R _{max_B} = 26, and R _{max_C} = 1. By lending resources based on the calculated maximum resource lending number to each management function unit, it becomes possible to lend resources preferentially to the operation management function unit to be prioritized.

  FIG. 8A and FIG. 8B are graphs showing the results of verifying the resource usage of the conventional distributed network management system and the distributed network management system according to the present invention. In FIG. 8A, resources are lent out in the order of arrival of connection requests from the distributed management agent to each operation management function unit. Therefore, it can be seen that each operation management function unit performs processing in parallel regardless of urgency. FIG. 8B shows the result of processing performed by each operation management function unit using the method proposed in the present invention. Since the processing priority is set for each operation management function unit, and the number of resource lending for each management function unit is determined using the processing priority and the number of connection requests to each operation management function unit, the processing priority is It can be seen that the processing is performed in order from the processing set higher.

  As described above, according to the present embodiment, the network management information is acquired without increasing the load on the network management apparatus, and the resource is determined based on the resource usage status and the processing priority of the operation management function unit of the NMS. It is possible to preferentially lend resources to a highly urgent operation management function unit.

DESCRIPTION OF SYMBOLS 1 Network management apparatus 2 Network apparatus 11 Connection control part 13 Resource management part 15-ac Operation management function part 17-ac Storage device 21 Distributed management agent 25 Management information collection function 27 Management information processing function 29 Management information transmission function

Claims (9)

A distributed network management system in which a network management device performs resource management based on a plurality of types of network management information collected by a plurality of network devices,
Each of the network devices is
Collect a plurality of types of network management information via the network, perform association between necessary network management information from the collected types of network management information, and send a connection request to the network management device and the associated network management information. With a distributed management agent to send,
The network management device includes:
An operation management function unit having a network management function including at least one of a configuration management function, a failure management function, and a performance management function, in which processing priority is set in advance;
A connection control unit responding to a connection request received from the distributed management agent based on the resource usage status of each operation management function unit;
A distributed network management system comprising: a resource management unit that calculates a resource lending number to be lent to the operation management function unit based on a resource usage status of each operation management function unit and the processing priority. The resource management unit
Let R be the current resource lending number of the device.
Let X be the set of operation management function units managed by the device itself,
The operation management function part requested for connection from the network device is x,
The current resource borrowing number of the operation management unit x is R _x ,
The maximum resource rentable number to the operation management unit x is R _{max_x} ,
The connection request per unit time to the operation management unit x is r _x ,
The processing priority of the operation management unit x is taken as d _x, distributed network management system according to claim 1, wherein the calculating the maximum number of resource lending based on the following equation.

The distributed management agent is:
Management information collection function that collects multiple types of network management information via the network,
Management information processing function for associating necessary network management information from the collected network management information;
The distributed network management system according to claim 1, further comprising: a management information transmission function that transmits a connection request and the associated network management information to the network management device. A network management device that performs resource management based on a plurality of types of network management information collected by a plurality of network devices,
An operation management function unit having a network management function including at least one of a configuration management function, a failure management function, and a performance management function, in which processing priority is set in advance;
A connection control unit that responds to a connection request received from a distributed management agent of the network device based on the resource usage status of each operation management function unit;
A network management apparatus comprising: a resource management unit that calculates a resource lending number to be lent to the operation management function unit based on a resource usage status of each operation management function unit and the processing priority. The resource management unit
Let R be the current resource lending number of the device.
Let X be the set of operation management function units managed by the device itself,
The operation management function part requested for connection from the network device is x,
The current resource borrowing number of the operation management unit x is R _x ,
The maximum resource rentable number to the operation management unit x is R _{max_x} ,
The connection request per unit time to the operation management unit x is r _x ,
Wherein the processing priority of the operation management unit x is taken as d _x, network management apparatus according to claim 4, wherein the calculating the maximum number of resource lending based on the following equation.

A network device that transmits a plurality of types of network management information to the network management device according to claim 4 or 5,
Management information collection function that collects multiple types of network management information via the network,
Management information processing function for associating necessary network management information from the collected network management information;
A network device comprising: a distributed management agent having a management information transmission function for transmitting a connection request and the associated network management information to the network management device. A distributed network management method in which a network management device performs resource management based on a plurality of types of network management information collected by a plurality of network devices,
In each network device,
Collect a plurality of types of network management information via the network, perform association between necessary network management information from the collected types of network management information, and send a connection request to the network management device and the associated network management information. Sending, and
In the network management device,
A network management function including at least one of a configuration management function, a failure management function, and a performance management function, in which processing priorities are set in advance,
Based on the resource usage status of each operation management function unit, when resource lending is not possible, a notification of connection disapproval and retransmission time is sent to the distributed management agent of the network device, and when resource lending is possible Sending a connection permission notification to the distributed management agent;
Based on the resource usage status of each of the operation management function units and the processing priority, calculating the number of resource lending to be lent to the operation management function unit, and lending resources;
And a step of updating the network management information when a resource is lent. A network management device program that performs resource management based on a plurality of types of network management information collected by a plurality of network devices,
A network management function including at least one of a configuration management function, a failure management function, and a performance management function, in which processing priorities are set in advance,
Processing to respond to a connection request received from a distributed management agent of the network device, based on the resource usage status of each operation management function unit;
A computer is caused to execute a series of processes including a process of calculating the number of resource lending to be lent to the operation management function unit based on the resource usage status of each operation management function unit and the processing priority. program. A network device program for transmitting a plurality of types of network management information to the network management device according to claim 6,
A process of collecting multiple types of network management information via the network;
Processing for associating necessary network management information from the collected network management information;
A program causing a computer to execute a series of processes including a process of transmitting a connection request and the associated network management information to the network management apparatus.

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