JPH10308736A - Distributed network managing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily link programs in the development process of network managing function module by providing a distributed managing function module which can call managing operation while using only the interface information of managing server program. SOLUTION: The program interface information required for executing the managing operation provided by the network managing function module is previously registered in a managing operation register part 102 when starting the network managing function module. When the calling request of the other network managing module is received, a managing operation calling part 103 executes the managing operation by finding a correspondent program module out of operation names. Thus, the managing operation can be called while using only the interface information of network managing module without depending on the configuration of managing system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for supporting operation management of a geographically or functionally distributed network system and a technology for supporting construction of an operation management system itself.

[0002]

2. Description of the Related Art As a network system becomes large-scale and wide-area, a distributed network management system composed of a plurality of subsystems, from a centralized network management system that executes all management functions in one place. It is becoming important. As a technique for this, for example, as described in JP-A-6-252988 and JP-A-7-226777, a subsystem is placed between a management manager, which is an entity that executes a management function, and a management agent that collects information on managed devices. Hierarchical management technology for grouping management agents and aggregating management information is known.

[0003] As a distributed communication basic technology for performing transparent communication (without being aware of the location of a physical program) between distributed programs, a soft research center "Distributed object-oriented technology" has been proposed. CORBA "
It is known to use an object request broker, as described in Hirofumi Onozawa, 1996.

[0004]

Now, in order to construct a distributed network management system, it is necessary to provide means for easily linking programs in the development process of the network management function module. The hierarchical management technology does not provide any network-transparent communication means. Further, in the distributed communication infrastructure technology, a client-server configuration is basically used, and transparent communication between a client program and a server program is realized. It is necessary to call a server program function by specifying its name.

[0005] As the number of server programs used increases, the dependency between the client and the server increases, and a change in the mounting method of the server program may cause a change in the client program. When using a management server having the same management function, it is necessary for the management client to select which management server to call.

It has been conventionally considered to reduce the load on the administrator by taking a specific action when a specific event occurs. However, an action that can be activated is a command or an application alone on a local machine. There is a need to make something unique.

According to the present invention, a management operation can be called using only interface information of a management server program, a function for supporting the management operation can be easily used as a built-in operation, and a callback function for a specific event is provided. It is an object of the present invention to provide a distributed management function module capable of calling a management operation as a function, and a distributed network management system realized by using the module.

[0008]

In order to achieve the above object, according to the present invention, a plurality of program modules are geographically or functionally dispersed and arranged, and the modules cooperate with each other for a specific management. A network management system realizing a function, comprising: a management operation registration unit for registering program interface information necessary for executing a management operation provided by a network management function module in advance at the time of starting the module; and a network management function module. When a call request for another network management function module is received, a corresponding program module is searched for from the operation name, and management operation calling means for executing a management operation, and the interface information are stored. A distributed network management system characterized by comprising a distributed management function module comprising a managed operation repository means and a distributed communication base means for performing transparent communication between program modules arranged in a distributed manner. I do.

The distributed management function module further includes management operation cooperation means for setting link information to another distributed management function module, and the program module corresponding to the call request in the management operation calling means is provided in the management operation repository. If it is not registered in the means and link information to other distributed management function modules is set,
A distributed network management system is provided, wherein a call request is transferred to a management operation calling means of the module, and the call request is processed in the module.

Further, in the management operation registration means, a built-in operation which can be executed in combination with the execution of the management operation is registered in advance, and a specific built-in operation is designated when the management operation is registered. The distributed network management system is characterized in that the management operation calling means executes the built-in operation when a call request is issued from the network management function module, and calls the management operation using the result.

Further, in the distributed management function module, a program module and a domain to which the module belongs are managed in association with each other, and when executed as the built-in operation, a program module corresponding to a domain specified from a plurality of program modules is stored. There is provided a distributed network management system including a management operation selecting means for selecting.

Further, the distributed management function module manages the program module by associating the program module with the execution priority of the module and the result of testing whether the connection with the module is possible or not, and executes the program module as the built-in operation. In this case, there is provided a distributed network management system characterized by comprising a management operation selecting means for selecting a connectable program module in order of priority from a plurality of program modules.

Further, in the distributed management function module, an event can be received from another network management function module, and a specific event ID and a management operation name are linked in advance and registered. A distributed network management system is provided, comprising management event callback processing means for calling a calling means and executing a corresponding management operation.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to a block diagram of a distributed management function module shown in FIG. 1 and a block diagram of a distributed network management system shown in FIG.

The distributed management function module 101 is provided from the network management function module to the distributed communication infrastructure 108 (for example, C
(ORBA). Management operation registration unit 102 and management operation calling unit 1 that constitute the distributed management function module 101
03, the management operation coordination unit 104, the management operation selection unit (embedded) 105, and the management event callback processing unit 106 also cooperate with each other via the distributed communication infrastructure 108, and the information necessary for that is stored in the management operation repository 10
Store in 7.

The distributed management function module shown in FIG.
101 is a CPU 201 and a memory 20 as shown in FIG.
2. It can be built on an electronic computer equipped with the hardware of the input / output interface 203, the display device 204, the input device 205, the storage device 206, and the network device 207. In this case, the distributed management function module 209 and the network management function module 208 using the same are stored in the memory 202 and embodied as a process.

FIG. 3 shows a hierarchical network management system in which a network is divided into a plurality of domains, a sub-management system is arranged for each domain, and an integrated management system is arranged above the sub-management system. NMS 302, network 1303, sub NMS 1 304,
Sub NMS2 305, Sub NMS3 306, Domain 1 30
7, domain 2 308 and domain 3 309.

First, the management operation registration flow is shown in FIG.
This will be described with reference to the flowchart of FIG. If the processing type is "Ad
d) or “Delete” (701), and in the case of “Add” it is determined whether it is a built-in OP (702) and the built-in OP
If not, an entry is added to the management OP table as shown in FIG. 12 (704). An entry in the management OP table includes a management operation name 1201, an object reference 1202 when executing a program module, a pointer 1203 to an embedded OP, and a pointer 1204 to the next entry. In the present embodiment, by registering the management operations provided by the sub NM1 304, the sub NMS2 305, and the sub NMS3 306 in the integrated NMS 302, the management program on the integrated NMS 302 specifies the management operation name and manages the specific sub NMS. Function can be called.

Returning to the flowchart of FIG.
In this case, an entry is added to the built-in OP table as shown in FIG. 13 (703). The entry of the built-in OP table includes a built-in operation name 1301, an object reference 1302 when executing a program module, and a pointer 1303 to the next entry. In this embodiment, the sub N
The management operation selection unit 105 is called by the management operation registration unit 102 and registered so that the operation corresponding to the designated domain can be selected from the same type of management operation provided by the MS. The management operation selection unit 105 creates a domain management table as shown in FIG. 15 in advance. An entry in the domain management table includes an object reference 1501 for executing a program module, a domain name 1502, and a pointer 1503 to the next entry. When using the built-in operation (705), the built-in OP in the management OP table
A pointer to the entry is set (706).

Next, the management operation calling flow will be described with reference to the flowchart of FIG. In this embodiment, it is conceivable that the management operation calling unit 103 is called from the management program on the integrated NMS using the management operation name, the built-in operation type “SELECT_DOMAIN” and the domain name as parameters. The management OP table is searched based on the call parameters (801), and when a corresponding program module is found (802),
Check whether the built-in OP is specified (803). This is executed when the management operation selection unit 105 is designated. In the flowchart of FIG. 10, first, the type is determined (1001). In the case of "SELECT_DOMAIN", the domain management table is searched by the domain name (1003) and the corresponding object reference is returned (1004). Returning to the flowchart of FIG. 8, the management operation is performed on the object returned from the embedded OP (805), and the operation result is returned to the caller (806).

A second embodiment of the present invention will be described with reference to the block diagram of the distributed network management system shown in FIG. FIG. 4 shows a mode in which a management system is arranged for each of the geographically dispersed networks, and the management clients mutually use the management server function. According to the description of the first embodiment, by registering the management operations of the network management server 505 and the network management server 512 in the network management client 502, the network management client can perform both operations without depending on the lower-level configuration. Management operations of the management server can be invoked. Network Management Client 509
The same applies to.

Further, the management operation linking unit 104 determines the request type according to the flowchart of FIG.
1) In the case of “Add”, the link destination object is set in the link table as shown in FIG. 14, and the requested management operation is not registered in the management OP table as shown in the flowchart of FIG. When the link table is set (807), the management operation calling unit 103 of the linked object is called (8).
08) This allows management servers to cooperate with each other.

In this embodiment, the network management server 50
5 is registered in the distributed management function on the same server, the management operation of the network management server 512 is registered in the distributed management function on the same server, and the network management client 502 or 509 designates both servers as the link destination. By setting, the management operation of both management servers can be called without depending on the lower-level configuration.

A third embodiment of the present invention will be described with reference to the configuration diagram of the distributed network management system shown in FIG. FIG. 5 shows a mode of distributing the load when managing a large-scale network by distributing the network management function to the two management servers 604 and 605 (for example, divided into a network monitoring function and a network setting function). ing. By means described in the first and second embodiments, the network management client 602 can call the management operations of the management server 1 604 and the management server 2 605 without depending on the lower-level configuration.

Further, assuming that the network management server has a redundant configuration (active / standby) in FIG. 5, the management operation selecting unit 105 prepares a connectivity management table as shown in FIG. The entries in the connectivity management table are an object reference 1601, an operation priority (for example, assigning a number from 1 to N) 1602, a connectivity flag (OK / NG) 1603, and a pointer 1604 to the next entry.
Consists of Assuming that the management server 1 604 is the active system and the management server 2 605 is the standby system, the priority of the management server 1 604 is set higher than the priority of the management server 2 605.

When registering the management operations of both management servers, select "SELECT_CO"
NNECTION ”type is specified as a built-in OP. When the request is sent to the management operation calling unit 103, as shown in the flowchart of FIG. 10, the connectivity management table is searched for an object with a high priority and connection OK (100
2) Return the corresponding object reference (100
Four). In this embodiment, the management operation of the management server 1 can be called while the management server 1 is operating normally, and the management operation of the server 2 can be called when the management server 1 does not operate for some reason.

A fourth embodiment of the present invention will be described with reference to the configuration diagram of a distributed network management system shown in FIG. FIG. 6 shows the management level (element management to network management).
This shows a form in which distribution is performed by service management) or by a managing entity (communication carrier to service provider). first~
By using the means described in the third embodiment, the lower management function can be used in the upper management system without depending on the lower configuration. Further, the management event callback processing unit 106 that starts a management operation in response to a specific event will be described.

In the flowchart of FIG. 11, first, the request type is determined (1101).
An entry is added to the callback management table as shown in (1104). An entry in the callback management table includes an event ID 1701, an operation name 1702, and a pointer 1703 to the next entry. Management event callback processing unit from other network management function modules
If there is an event notification "Event_Notify" in 106,
Search the callback management table by event ID (11
02), the management operation calling unit 103 is called using the found operation name as a parameter (110).
3). In the present embodiment, when an important failure event is detected by the element management system, it can be used, for example, when a failure site specifying function of a higher-level network management system is called.

[0029]

As described above, according to the present invention, a management operation can be called using only the interface information of the network management function module without depending on the configuration of the management system, and a function for supporting the management operation is provided. Construction of a geographically or functionally distributed network management system by providing a distributed management function module that can be easily used as a built-in operation and that can invoke a management operation as a callback function for a specific event Can help.

[Brief description of the drawings]

FIG. 1 is a diagram showing functional blocks of a system according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a hardware configuration of a system according to an embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a distributed network management system according to a first embodiment of the present invention.

FIG. 4 is a diagram showing a configuration of a distributed network management system according to a second embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of a distributed network management system according to a third embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of a distributed network management system according to a fourth embodiment of the present invention.

FIG. 7 is a diagram showing a registration flow of a management operation according to the embodiment of the present invention.

FIG. 8 is a diagram showing a call flow of a management operation according to the embodiment of the present invention.

FIG. 9 is a diagram showing a cooperation flow of a management operation according to the embodiment of the present invention.

FIG. 10 is a diagram showing a flow of selecting a management operation according to the embodiment of the present invention.

FIG. 11 is a diagram showing a management event callback processing flow according to the embodiment of the present invention.

FIG. 12 is a diagram showing a format of a management operation table according to the embodiment of the present invention.

FIG. 13 is a diagram showing a format of a built-in operation table according to the embodiment of the present invention.

FIG. 14 is a diagram showing a format of a link table according to the embodiment of the present invention.

FIG. 15 is a diagram showing a format of a domain management table according to the embodiment of the present invention.

FIG. 16 is a diagram showing a format of a connectivity management table according to the embodiment of the present invention.

FIG. 17 is a diagram showing a format of a callback management table according to the embodiment of the present invention.

[Explanation of symbols]

101: distributed management function module, 102: management operation registration unit, 103: management operation calling unit, 104:
Management operation linking unit, 105: management operation selection unit, 106: management event callback processing unit, 107 ...
Management Operations Repository, 108 ... Distributed Communication Infrastructure, 2
01: CPU, 202: Memory, 203: Input / output interface, 204: Display device, 205: Input device, 206: Storage device, 2
07: Network device, 208: Network management function module, 209: Distributed management function module.

Claims (6)

[Claims] 1. A network management system in which a plurality of program modules are geographically or functionally distributed and arranged, and the modules cooperate with each other to realize a specific management function. Management operation registration means for registering in advance program interface information necessary to execute the provided management operation when the module is started, and an operation name when a call request for another network management function module is received from the network management function module And a management operation invocation means for searching for a corresponding program module and executing a management operation, and a management operation repository means for storing the interface information, are distributed and arranged. A distributed network management system comprising: a distributed management function module configured by a distributed communication platform unit for performing transparent communication between program modules. 2. The distributed network management system according to claim 1, wherein said distributed management function module includes management operation cooperation means for setting link information to another distributed management function module. When a program module corresponding to the call request is not registered in the management operation repository means in the calling means and link information to another distributed management function module is set, the management operation calling means of the module is Characterized in that the call request is transferred to the module and the call request is processed in the module. 3. The distributed network management system according to claim 1, wherein said management operation registration means registers in advance a built-in operation which can be executed in combination with the execution of the management operation, and registers the management operation. By designating a specific built-in operation, the management operation calling means executes the built-in operation when there is a call request from the network management function module, and calls the management operation using the result. A distributed network management system, characterized in that: 4. The distributed network management system according to claim 3, wherein the distributed management function module manages a program module and a domain to which the module belongs by connecting the module to each other and executes the operation as the built-in operation. A distributed network management system comprising management operation selecting means for selecting a program module corresponding to a specified domain from a plurality of program modules. 5. The distributed network management system according to claim 3, wherein the distributed management function module tests a program module and a priority for executing the module, and determines whether connection with the module is possible. And a management operation selecting means for selecting a connectable program module from a plurality of program modules in a descending order of priority when executed as the built-in operation. Network management system. 6. The distributed network management system according to claim 1, wherein the distributed management function module is capable of receiving an event from another network management function module, and has a specific event ID and management operation name in advance. And a management event callback processing means for executing a corresponding management operation by calling a management operation calling means when the event is received.