JP2002117039A - Network managing method using management information base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retrieve a management object fast however large a scale of a management base is and whatever tree structure the management base has. SOLUTION: This method has step S301 for receiving an operation request including a management object retrieval key representing a detailed position from a control manager managing a network to a network management system including a management information base managing the relation between management objects, step S311 for performing retrieval using a retrieval key when the retrieval key including the detailed position is available, and step S306 for replying and transmitting the retrieval result including the retrieval key to the control manager.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network management system in which a management target is represented by a management object, and the management object is managed using a management information base. .

[0002]

2. Description of the Related Art A conventional sequential search method performed by a managed object processing unit will be described. FIG. 13 is a diagram showing one configuration example of a conventional network management system. In the figure, 101 is a management manager, 102 is a network management system managed by the management manager 101, 121 is a management information base provided in the network management system 102 for managing information in a tree structure, 211, 212, and Reference numeral 213 denotes a part of the management objects managed by the management information base 121, 122 denotes a management object processing unit that performs processing relating to these management objects, and 123 denotes a management information base file that stores information of the management information base 121. is there. Reference numeral 103 denotes a management object operation request from the management manager 101 to the network management system 102, and reference numerals 141, 142, and 143 denote management object operation responses from the network management system 102 to the management manager 101 in response to the management object operation request 103. Is a search using a relative identification attribute of a managed object managed in the management information base 121. The network management system 2 may have a plurality of the same configuration and may be managed by the management manager 1 at the same time.

Next, the operation will be described. When the network management system 102 receives the management object operation request 103 from the management manager 101, the content of the request is, for example, “generate a child management object 213 of the child management object 212 of the management object 211”, as shown in FIG. As shown in a), it is composed of a set of relative identification attributes up to the managed object to be operated and the request content. At this time, the management information base 121 and the management object processing unit 122 perform a search using a set of relative identification attributes of the management object according to an operation flow as shown in FIG. Then, a management object operation response 141 as shown in FIG.

When the network management system 102 receives a management object operation request 103 for a management object 213 in the management information base 121 from the management manager 101, the management object processing unit 12
2 retrieves the management object 213 from the management information base 121. At this time, the management object operation request 10
The search key of the management object 213 assigned to No. 3 is a set of relative identification attributes up to the operation target management object as shown in FIG. Therefore, the management information base 121 performs a search using a set of relative identification attributes of the management object according to the operation flow shown in FIG. 16 to specify the operation target object. Then, the managed object processing unit 122 executes the managed object operation request 3 on the specified operation target.

[0005] When the network management system 2 receives a management object operation request 103 from the management manager 101, which is a request to acquire all information necessary for management,
The managed object processing unit 122 searches for all managed objects to be operated by the above-described method, and issues a managed object operation request 1 to each managed object.
03, and the managed object operation responses 141 and 14 are executed.
The response to the operation of all managed objects including 2 and 143 is transmitted to the management manager 101. At this time, in order to reduce the number of management object operation responses,
There is also a method of transmitting the operation responses to the management manager 101 collectively.

[0006]

Since the conventional network management system is configured as described above, the management information base is large-scale and its tree structure has a large number of children for one parent. When the number of hierarchies is large, there are many inquiries to the management information base file when searching for a management object to be operated, so that there is a problem that a long time is required for search processing. Also, when the network management system receives a management object operation request for a large number of management objects (for example, a request for acquiring all the information necessary for management described above), similarly, it takes a long time to search for management objects. In addition, there has been a problem that the number of responses to the operation of the management object has increased, and the management manager cannot manage it.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and a management object search request for a management object operation request is made even if the management information base is large and has any tree structure. Do fast,
In addition, the number of management object searches and the number of operation responses when the network management system receives a predetermined acquisition request for all information necessary for management are reduced.

[0008]

According to the present invention, there is provided a network management method using a management information base, wherein a management manager for managing a network transfers a management information base including a management information base file for managing objects such as a tree structure. , In a search request for a managed object,
When an operation request including a detailed search key is received from the management manager, a step of directly executing a search based on the detailed search key, and a result of executing the operation request,
Sending a response to the management manager including a new next detailed search key if necessary.

Further, when performing a hierarchical search of a tree structure, when the management information base receives the upper first search key, the management information base performs a search directly with the upper first search key. Transmitting the search result with a lower second search key added thereto, and upon receiving the lower second search key, performing a direct search and, if necessary, retrieving the result of this search in a third And sending a response with a search key added.

Further, when the operation request from the management manager is a new integrated operation request, the step of transmitting a response from the management information base to the management manager includes the step of transmitting the response to the management information base file required for the search. Sent the search key of each hierarchy and the relational structure of managed objects.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, an embodiment of the present invention for performing a direct lower-order search will be described with reference to the drawings. In FIG. 1, 1 is a management manager, 2 is a network management system managed by the management manager 1, 21 is a management information base provided in the network management system 2, 211, 212 and 2
Reference numeral 13 denotes a part of the management objects managed by the management information base 21, reference numeral 22 denotes a management object processing unit for performing processing relating to these management objects, and reference numeral 23 denotes a management information base file for storing information of the management information base 21. . Reference numerals 231, 232, and 233 denote management object search keys for directly specifying storage locations of the management objects 211, 212, and 213 in the management information base file 23, respectively. Reference numeral 24 denotes a connection between the management manager 1 and the network management system 2. , A management object operation request from the management manager 1 to the network management system 2, 41, 42 and 43, a network management system 2 for the management object operation request 3 Is a part of the management object operation response from the management object 1 to the management manager 1.

Further, reference numeral 51 denotes a search using the relative identification attribute of the management object managed in the management information base 21, and reference numeral 52 denotes a search result using the management object search keys 231, 232 and 233. Reference numeral 6 denotes a request for acquisition of all information necessary for management from the management manager 1 to the network management system 2. Reference numeral 7 denotes a request for acquisition of all information necessary for management from the network management system 2 to the management manager 1. Acquisition response of all information. As shown in FIG. 2, the network management system 2 may have a plurality of the same configuration and may be configured to be managed by the management manager 1 at the same time.

The management object managed by the management information base 21 is not limited to a tree structure, and may be managed in any structure. In the following, it is assumed that the management object has a tree structure, and FIG. Will be explained. First,
In the management information base 21 of the network management system 2, a management object 211 serving as a vertex of the tree structure has already been generated, and in step S301 (hereinafter, the description of the steps is omitted), the management object 1 shown in FIG. Is received, the connection request including the search key 231 is received. here,
The management object search key 231 directly specifies the storage location of the management object 211 in the management information base file 23, for example, the head address of the storage area. The same applies to the management object search keys 232 and 233.

When a management object operation request 3 of “generate a child management object 212 with the management object 211 as an operation target” is received from the management manager 1, for example, the management object processing unit 22
Is based on the request in FIG.
From the management information base 21. At this time, if the management object search key 231 as shown in FIG. 5 is given to the management object operation request 3, the management information base 21 will be able to execute S302 to S304 or S31 in FIG.
The management object 211 is searched from the management information base file 23 using this search key according to the operation flow of 1. Then, the management object 212 is generated in the management information base 21, and the management object operation response 41 including the management object search key 232 as shown in FIG.

When the management object processing unit 22 receives a management object operation request 3 from the management manager 1, for example, "generate a child management object 213 for the child management object 212 of the management object 211". Object 2
12 is retrieved from the management information base 21. At this time, if the management object search key 232 as shown in FIG. 7 is given to the management object operation request 3, the management information base 21 stores S 301 through S 331 as shown in FIG.
Search according to the operation flow up to. In this case, since there is the search key 232, the management object 212 is searched from the management information base file 23 in S331. Therefore, the number of inquiries to the management information base file is reduced as compared with the conventional example. And the management object 2
13 is generated in the management information base 21, and the management object operation response 4 including the management object search key 232 as shown in FIG.

The network management system 2 sends the management object 2 in the management information base 21 from the management manager 1.
When the management object processing unit 22 receives the management object operation request 3 (deletion, setting, reading, operation) for the management object 213, the management object processing unit 22 stores the management object 213 in the management information base 2.
Search from 1. At this time, a management object search key 23 as shown in FIG.
If 3 is given, the management information base 21 searches according to the operation flow as shown in S351 to S358 in FIG. In this case, since there is the search key 233, the management object 213 is searched from the management information base file 23 in S361. Therefore, the number of inquiries to the management information base file is reduced as compared with the related art. Then, a management object operation request 3 is executed in S357. Thereafter, the transmission to the management manager 1 in S358 is also transmitted collectively. With respect to such a management object generation request and operation request, the same processing is performed when another management object in the management information base 21 is an operation target.

Embodiment 2 FIG. In the above embodiment, the operation has been described on the assumption that the management manager knows the configuration of the management object of the network management system and the search key. However, when the management manager first manages the network management system, or when the management object system of the network management system is changed, it is important that the management manager obtains the latest data. In the present embodiment, a method of obtaining necessary data in a short time by reducing the number of times of data exchange between each other even in such a preparation stage will be described. In such a case, first, the management manager 1 sends a comprehensive management object operation request 3 (for example, full reading) to the network management system 2.

If the connection between the network management system 2 and the management manager 1 is cut off for some reason, or if the network management system 2 and / or the management manager 1 cut off the connection voluntarily, the connection is re-established. The connection is made. At this time, the management manager 1
Does not hold the information of the network management system 2, it is necessary to obtain from the network management system 2 all the predetermined information (including the management object search keys 231, 232 and 233) necessary for management.
Even when the management manager 1 holds the information of the network management system 2, there is a possibility that a discrepancy of information may occur during the period when the connection is disconnected. It must be obtained from the management system 2.

Therefore, when the network management system 2 receives from the management manager 1 a management object operation request 3, which is a request to acquire all predetermined management-required information, the management object processing unit 22 executes the processing shown in FIG. In accordance with a simple operation flow, the file 24 of all information is acquired from the management information base file 23 without performing any management object search, and is configured as one management object operation response and transmitted to the management manager 1. Thus, even in a large-scale search and transmission such as full-scale reading, the number of searches and the number of responses can be reduced.

[0020]

As described above, according to the present invention, there are provided an operation request receiving step including a lower-level managed object search key and a step of directly performing a required search by using this key. Regardless of the size of the management information base in the system and the structure of the management objects, the number of inquiries to the management information base file when searching for management objects is reduced, and the search processing time is reduced. This has the effect of shortening.

[0021] Furthermore, since there are provided a plurality of integrated operation request receiving steps and an integrated response transmitting step, a management object operation response when the network management system receives a request for obtaining all information necessary for management predetermined. Is reduced to one, and the management is easily managed by the management manager. The first and second effects reduce the response time and the number of responses to an operation request per one network management system, so that a plurality of network management systems can be managed by one management manager.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a network management system according to Embodiments 1 and 2 of the present invention.

FIG. 2 is a diagram showing a configuration of another network management system according to the first embodiment.

FIG. 3 is a diagram showing an operation flow (generation) of a managed object processing unit according to the first embodiment.

FIG. 4 is a diagram showing a content example of a management object operation request according to the first embodiment;

FIG. 5 is a diagram showing an example of the content of another management object operation request according to the first embodiment.

FIG. 6 is a diagram showing a content example of a managed object operation response according to the first embodiment.

FIG. 7 is a diagram showing an example of the content of another management object operation request according to the first embodiment.

FIG. 8 is a diagram showing an operation flow (generation) of another managed object processing unit according to the first embodiment.

FIG. 9 is a diagram showing an example of contents of another management object operation response according to the first embodiment.

FIG. 10 is a diagram showing a content example of a management object operation request (deletion, setting, reading) according to the second embodiment of the present invention;

FIG. 11 is a diagram showing an operation flow of an operation flow (deletion, setting, reading) of a managed object processing unit according to the second embodiment.

FIG. 12 is a diagram showing an operation flow when a request to acquire all information necessary for management according to the second embodiment is received.

FIG. 13 is a configuration diagram of a conventional network management system.

FIG. 14 is a diagram illustrating an example of a conventional managed object operation request and operation response.

FIG. 15 is a diagram showing an operation flow (generation) of a conventional managed object processing unit.

FIG. 16 is a diagram showing an operation flow of an operation flow (deletion, setting, reading) of a conventional managed object processing unit.

[Explanation of symbols]

1 management manager, 2,251,252 network management system, 3,31,32 management object operation request, 6 management required all information acquisition request, 7 management required all information acquisition response, 21 management information base, 22
Management object processing unit, 23 management information base file, 24 files of all information necessary for management, 41, 4
2, 43, 44, 45, 46 managed object operation response, 51 search using relative identification attribute, 52 search using managed object search key, 211, 212, 2
13 management object, 231, 232, 233 management object search key, S301 operation request receiving step, S306 management object operation response step,
S311 Search 52 execution step using search key 231; S325 Management object 213 execution step using management object 212 as a parent; S331 Search 52 execution step using search key 232; S371 Management object operation request (all acquisition) reception step; S37
2 Management object operation response (all acquisition) transmission step.

Claims (3)

[Claims] 1. An operation request including a detailed search key from a management manager in a search request for a management object from a management manager managing a network to a management information base including a management information base file for managing objects such as a tree structure. And receiving the operation request directly, based on the detailed search key, and transmitting a result of executing the operation request to the management manager including a new next detailed search key if necessary. A network management method using a management information base. 2. When performing a hierarchical lower-level search in a tree structure, the management information base, upon receiving a higher-level first search key, directly performs a search with the higher-level first search key, and performs a search. Transmitting a result with a lower second search key; and receiving the lower second search key, performing a direct search, and, if necessary, a third search result. 2. The network management method using a management information base according to claim 1, further comprising a step of adding a search key and transmitting a response. 3. When the operation request from the management manager is a new integrated operation request, the step of transmitting a response from the management information base to the management manager includes the step of including a management information base file required for search. 2. The network management method using a management information base according to claim 1, wherein a relational structure of the management object to be used and a search key of each hierarchy are sent.