JP2872340B2 - Network configuration management method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a network configuration management method.
The present invention relates to a network configuration management method for displaying a network state from the whole to the details by displaying the network configuration hierarchically.

[Conventional technology]

In a communication network management system, configuration management for managing the state of the components of the network is important. In general, corporate information the net work is seen as 10 ⁵ order of about the net work components but not firmly establishing. However, it cannot be denied that the number is very large. Therefore, in order to make it easy to manage the information of the components of the network, a configuration management method oriented to a management object (object) is being adopted. This object-oriented management method is based on the ISO (International
tion Organization: International Standards Organization (OSI) Open System
ems Interconnection: Open Systems Interconnection) The Network Management Standardization Committee is also studying. In the managed object-oriented configuration management method, the managed objects constituting the network are classified as managed object classes (object classes), and the classes are arranged in a tree shape. This tree is hierarchized from the upstream roots (rates) to the downstream branches (leaves), and the downstream contains the upstream attributes behind. According to the managed object class, the actual constituent elements and the managed elements are configured in a tree-like form, which is a managed object entity (object instance) tree.

FIG. 2 shows an example of a management target object tree. Netw in the root
ork exists, and below it, equipment, line…
However, under equipment, equipment is PBX (PrivateBran
ch Exchange), there are LGN, TGN, trunk, etc. As a method of classifying these management objects and giving names, for example, a hierarchical eight character string (Hierarchical Octet Strin)
g) there. This means that the root network is 1, the next class of equi
pment is 1, line is 2, LGN of next class is 1, TGN is 2, t
Give runk a value of 3 etc. For example, for PBX, 1.1, PBX
In the case of TGN, it is a method of naming like 1.1.2.
Thus, by looking at this hierarchical eight-character string, it is possible to know what kind of management object it is. Further, as shown in FIG. 3, the management object has a hierarchical eight-character string (hos) 41.
Not only that, the equipment is always a PBX, TDM or CCP, etc., a type (type) identifier 42, or an attribute (ettribute) 43 of each.
, Etc., which are collectively referred to as managed object information 31, 32.

In the configuration management in the network management system, when a name of a component (here, a hierarchical eight-character string) is given, it is an important function to search, refer to, and write the management target information. Therefore, it is important how to quickly find necessary information from the large-scale managed object information database 30.

As a method of searching for and finding one element from the large-scale managed object information database 30, a hierarchical eight-character string may be used. The method is based on the range of values that can be taken by each class according to the managed entity tree, that is, the hierarchical 8
A method is conceivable in which a storage area for the information of the management target is secured in advance from the range that the character string can take, and the storage area is referred to according to the value of the hierarchical eight character strings. The search is fast with this method, but wastes a great deal of memory. The memory of the managed object information required for each managed object is estimated to be an average of over a hundred and several tens of bytes. The network status display system also requires a storage area for display information, and the average of 200 bytes is required. This is likely to be exceeded, and wasted memory should be avoided.

As another method, an arbitrary independent search key (key) is generated from a hierarchical eight character string using a certain conversion function, and the management target object information is stored using this key. At the time of search, a method of immediately extracting necessary information using a key is being considered. However, even with this method, there is a possibility that memory is wasted depending on the method, reliability of the search key, overhead at the time of generation, and the like, and a method has not yet been established.

As a countermeasure for memory saving, a method using a pointer can be considered for the above two cases, but in both cases, processing overhead, complexity of additional correction, and the like can be considered.

Related documents include IS / I.C.D.P.10164-3 Information Processing Systems-Open Systems.
Systems Interconnection-Systems Management Part 3: Relationship Management Management Function (ISO / I.E.C. / J.A.T.C.1 / S.C.21.N.C.) 32
97) ((ISO / IEC DP1064-3 Information Processing S
ystems-Open Systems Intercon-nection-Systems Ma
nagement Part3: Relation-ship Management Function
(ISO / IEC / JTC1 / SC21N3297)).

[Problems to be solved by the invention]

The above-mentioned prior art cannot cope with the speciality of a large-capacity managed object information database in a large-scale network, and has problems such as inefficient use of a memory area, complexity, and a large processing load as a whole.

An object of the present invention is to make it possible to quickly refer to necessary elements in an information database of a large-capacity managed object in a large-scale network.

[Means for solving the problem]

In order to achieve the above object, in the present invention, in the network status display, an inclusion relation tree between display management objects belonging to individual display screens is configured, and a management object group number is assigned to a branch of the relation tree. By assigning and determining the correspondence between the management object and the group number, a method of configuring a group of management objects and reducing the search space for information search is adopted.

When the correspondence between the managed object and the corresponding group number is determined, a method is employed in which the managed object group is further arbitrarily subdivided according to the inclusion relationship tree of the managed object.

Further, in the status display, a method of adding a part for storing the search frequency to the information of the management target object and configuring the management target object information according to the search area to improve the search speed of the high frequency of occurrence. take.

In the status display, after associating the managed object with the group number, a method of rearranging the managed object information so that the managed object information of the same group number is adjacent, and associating the managed object with the group number At the same time, or after associating them all, a method of separately storing the management target object information for each management target object group and storing the information separately is also available.

[Action]

This system changes the display screen in stages, such as a nationwide diagram of the network configuration, the other side diagram, individual station diagram, etc.,
In a status display that enables the status of a network to be displayed from the whole to the details, an inclusive relation tree between display management objects belonging to individual display screens is formed, and management is performed on branches and leaves of the relation tree. By assigning the object group number and determining the correspondence between the management object and the group number, a method of configuring the group of management objects is employed, so that there is no possibility of malfunction.

〔Example〕

 Hereinafter, the present invention will be described with reference to examples.

FIG. 4 is a basic configuration diagram of the network management system. For example, a high-speed TDM network management system 46 that manages a high-speed TDM network 49, a PBX network management system 47 that manages a PBX network 50,
An integrated network management is performed by an integrated management system 45 that collects and manages management information from individual network management systems such as a computer network management system 48 that manages the computer network 51.

Here, it is connected to the overall management system 45, and based on the configuration management database possessed by the overall management system 45,
A network status display system 52 for displaying the status of the network is provided. The network status display system 52 configures a display information database based on the configuration management database possessed by the integrated management system 48 and includes necessary configuration information and original display information for screen display, for displaying the network status. There is a need to. All the items described below are in the network status display system 52.

FIG. 1 shows a communication network management system having management target object-oriented configuration management information, in which a nationwide map, a local map, an individual station map, and the like of a network configuration are displayed in a step-by-step manner so that the entire screen is changed. In a state display system capable of displaying a state of a network in detail, an inclusive relation tree between display management objects belonging to individual display screens is formed, and the management object is added to a branch of the relation tree. By assigning a body group number and determining the correspondence between the management object and the group number, it is an inclusion relationship tree of the display management object and the network management management object when the management object group is formed. .

In the managed object 10 at the root of the inclusion tree, there are managed objects (11, 12, 13,...) Of lower classes. Each downstream managed object has an inclusive relation (1a, 1b, 1c,...) With respect to the managed object 10 which is the higher root. Each of the managed objects (11, 12, 13,...) Has further lower managed objects 21, 22, 23,. Also,
Managed objects 21, 22, 23, ... are 2
It has an inclusive relation like a, 2b, 2c. of course,
Sections 11, 12, ..., one step below the managed object 10 corresponding to this root
The number of stages up to the terminal branches 21, 22, 23,... Is arbitrary, and need not be limited to the tree structure shown in this example. The above is an example of the tree structure of the management object for display. The tree structure of the object to be managed for network management is shown in FIG. Hereinafter, unless otherwise specified, a managed object refers to a managed object for network management.

The set 30 of the entire management information of the management target includes 31, 32,... 37,... As the management target information of the individual management target. For example, the display management object 21 and the management objects 31, 32,... 37,... Located at the branches and leaves of the display management object are defined to have the inclusion / inclusion relationships 3a, 3b,. In this way, the management target object group is determined for each part corresponding to the branches and leaves of the management target object, and the search for the management target object information may be performed within the range of the group number by assigning the group number, and the search space is reduced to a small search space 5, Can be like 6.

Further, the relationship between the relationship tree of the network display management object shown in FIG. 1 and the network management object will be specifically described with reference to FIG. The screen 10 corresponding to the root of the tree of the network display management object is, for example, a nationwide map of Japan. In the national map of Japan, there are nodes of related trees, such as the Kanto area map 11, the Kansai area map 12, and the Kyushu area map 13, as local maps representing each area such as Kanto, Kinki, Kyushu, and so on. FIGS. 11, 12, and 13 show the relations (1a, 1b, and 1c) included in the Japanese national figure 10 respectively. Also, Kanto area Figure 11
Includes a configuration diagram in each communication station such as Tokyo 21, Yokohama 22, Chiba 23,.

The management target used for the actual network management is included in the screen corresponding to the branches and leaves of the related tree, that is, the screen in each communication station. In other words, high-speed TDM31, PBX32, telephone 3
3, 34, and a single management target such as the communication control processing device 35 constitutes one group 5.

The object to be managed for network management also has a tree structure as described above. For example, when one line adapter in the high-speed TDM 31 is damaged, it becomes necessary to search for the management target information. At this time, a search space is derived from the group number representing the management object of the higher class, and the search is performed according to the search space.

More specifically, when the name of the managed object given as a hierarchical eight-character string is 1.1.1.2, a search is performed to determine which display managed object 1.1 contains the higher-level managed object 1.1 (group). Number search), and then a search (search space search) is performed to determine whether the predetermined search space includes the name 1.1.1.2. Comparing the number of searches, the number of times required to search until the element is found by searching for n elements is n / 2, so the number of times required to search 1000 pieces of data brute force is 500. However, when these are divided into groups of 10, 20, and 100, the average number of searches is 55 (group number search 5 + search space search 50), 35 (group number search 10 + search space search 25), and 55 (group number search, respectively). Search 50 + Search space search 5). That is, theoretically, if the number of groups is divided such that the average of the number of divided elements is substantially equal to the number of divided elements, the number of searches is reduced.

Next, the software configuration of the network status display device 52 according to the present invention will be described with reference to FIG. The display management object tree is generated by the display management object generation unit 61 via the man-machine unit 60 according to a request of the system operator or the like. The generated display management object and the related tree are stored in the display DB 62. The managed object group distinction section 63 displays DB62,
Reference is made to the managed object information from the configuration DB 64, and the managed object is associated with the managed object group number. The optimization processing unit 65 performs integration, organization, and the like for efficient processing in order to increase the speed of searching for the management target included in the configuration DB 64. The processing in the man-machine unit 60 is output to the display device 70 for interfacing with the system operator. So far, it is preparation for the search.

Now, it is assumed that a status change notification is sent from the central management system to the network status display device 52 via the communication unit 66.
Of course, the status change notification includes the name of the managed object. For this reason, the management object that is higher than the notified management object is selected. This is performed by the upper class selector 67.
Next, the group number search unit 68 searches for the group number to which the higher class belongs. Here, from the managed object group separate unit 63,
Refer to the corresponding information. Next, the search space search section 69 extracts necessary management information from the management target object information, uses the result as software, or displays the result on the display device 70 or the like.

This method can be implemented even when the management target for network display is not in a tree shape as shown in FIG. In such a case, a method may be employed in which the objects to be managed included in a certain communication station are grouped into one group. However, it is optional to make one group.

The search frequency is added to the management information of the management target. The search frequency is the cumulative number of searches for the managed object. By actively using this information, the search time can be reduced.

In the system for creating and editing the inclusion tree of the hierarchical display screen and the display screen, when creating the display contents of the display screen corresponding to the branches and leaves of the inclusion tree of the display screen,
Simultaneous processing for associating the display screen with the object to be managed can improve processing efficiency.

〔The invention's effect〕

According to the present invention, in a communication network management system having management object-oriented type configuration management information, in the status display for displaying the status of the network, the inclusion between the display management objects belonging to the individual display screens is included. A relational tree is configured, a management target group number is assigned to the branch and the leaf of the relation tree, and a correspondence relation between the management target and the group number is determined to form a group of the management target. Each managed object is assigned as a managed object group according to a regional factor, and the correspondence between the managed object and the group number is determined, thereby forming a group of managed objects to form a managed object group. Since the area for searching the database is extremely limited, the processing can be performed quickly and efficiently.

Further, by adding a part for storing the search frequency to the information on the management target and configuring the management target information according to the search frequency, the processing speed and efficiency can be further increased.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining the relationship between a tree of a network display management object and a network management object according to an embodiment of the present invention. FIG. 2 is an example of a managed object example tree. FIG. 3 is a specific example of information on the management target. FIG. 4 is a basic configuration diagram of the network management system according to the embodiment of the present invention. FIG. 5 is a view for explaining a specific relationship between a tree of a network display management object and a network management object according to the embodiment of the present invention. FIG. 6 is a diagram showing a software configuration of a network status display device according to the embodiment of the present invention.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Ryoichi Sasaki 1099 Ozenji Temple, Aso-ku, Kawasaki City, Kanagawa Prefecture Within Hitachi, Ltd. Systems Development Laboratory Co., Ltd. (56) References JP-A-1-173148 (JP, A) Hei 1-23632 (JP, A) JP-A-3-249841 (JP, A) Japanese Utility Model Hei 1-147444 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G06F 13 / 00 H04L 11 / 00,11 / 08

Claims (5)

(57) [Claims] 1. A network configuration management method for displaying a state of a network from the whole to a detail by displaying the network configuration in a hierarchical manner. Object-oriented configuration information is provided to form an inclusion tree between display management objects to be displayed on individual display screens, and each branch of the inclusion tree is defined as a management object group, and the management object Given information indicating a group, the correspondence between the information indicating the managed object group and the configuration information of the network managed object belonging to the branch and leaf of the inclusion relation tree defined as the managed object group is determined. A network configuration management method, comprising configuring the management object group. 2. The network configuration management method according to claim 1, wherein branches and leaves of said inclusive relation tree are determined as a group of objects to be managed according to geographical factors in the network. 3. The network configuration management method according to claim 1, wherein the network management object has a search frequency as configuration information. 4. The network configuration management method according to claim 1, wherein when the information indicating the management target group is given to each of the branches and leaves of the inclusion relation tree, the inclusion relation between the display management targets is followed. And providing information indicating a group of objects to be managed corresponding to the subdivided branches and leaves. 5. The network configuration management method according to claim 1, wherein the same information is provided as information indicating a management target group.
A network configuration management method, wherein a configuration information database is configured such that configuration information held by a network management target is adjacent.