KR20000033215A - Method for maintaining status information conformity in 10gbps sdh mib - Google Patents

Abstract

PURPOSE: A method for maintaining status information conformity in 10 Gbps SDH(Synchronous Digital Hierarchy) MIB(Management Information Base) is provided to maintain status conformity by using object container-contents without making an independent telecommunication every object instance. CONSTITUTION: The initialization of management object is made(S1). In case that M-SET service is request for management status attribute(S2), the associated object is accessed(S3). The attribute of management status is updated(S4), and it is confirmed whether a sub object for cascading update exists(S5). It is confirmed whether the status attribute associated with the sub object exists(S6). After the status attribute is updated into an identical status attribute value(S7) and it is confirmed whether a higher level object exists(S8), access is made to the higher level object(S9). After confirmed whether the status attribute in the higher level object exists(S10), access to all sub object attributes is made(S11). AND or OR combination is proceeded for the status attribute of sub objects(S12). The status attribute value is updated(S13). In case that the higher level object does'n't exist, it is confirmed whether relative attribute exists(S14) and access is made to the associated object(S15). It is confirmed whether the related object has a status attribute(S16), it is update if there is the status attribute(S17). In case that the update report of an apparatus received(S18), it is reviewed whether the update of the status attribute is necessary(S19). If the configuration management object receives the final signal from the operation system, the procedure is completed(S20).

Description

How to maintain the consistency of status information at 10Hz Synchronous Operation Information Station (SDH MB)

The present invention relates to a method of maintaining state information consistency in a 10 Gbps Synchronous Digital Hierarchy (hereinafter referred to as SDH) Management Information Base (hereinafter referred to as MIB).

In particular, the present invention provides a method of ensuring that state information of related objects is matched by using an inclusion relationship or a relationship attribute itself, which is information maintained in a management information database.

The 10Gbps synchronous optical transmission system has been developed in Korea since 1993 as part of the HAN / B-ISDN project, a national project of the Korea Electronics and Telecommunications Research Institute.

When the transmission system acts as the agent of the communication management network, the management information base is a repository of management objects that provide device status information for the management function of the communication management network while maintaining all the information of the device in a standardized form.

Conventional management information technology attempts to maintain information consistency by introducing relational objects or using inference and expert systems.

However, there is a problem that data consistency must be maintained even in an environment in which it is difficult to introduce additional systems in addition to maintaining pure management information.

In order to solve the above problems, an object of the present invention is to provide a method of maintaining state consistency without having to perform independent communication for each object instance by using an object's inclusion relationship.

The present invention allows a synchronous transmission device to perform a standard managed object function on a communication management network while maintaining consistency of state information in the object.

The management information base maintains a tree structure of interrelated object instances by inclusion relationships. Since a device is represented by multiple managed object instances, the state of the device is represented by several objects.

At this time, the state is changed by using the information received from the device. The state change of the parent object applies a chain change technique that changes the child objects in the same way.When the state of the child object is changed, the logical product ( AND) or OR to change the state.

The management information base, which communicates with the administrator using CMIP, a standard protocol, consists of a tree structure with various object instances centered on each other.

In the tree structure, the objects involved in the containment ultimately correspond to the same device, so the management state and operation state information are the same.

In addition, when the relationship is not included, the relationship may be represented by using a pointer attribute. In this case, the status information may be reflected.

In the present invention, since the management object information included in the management information base ultimately corresponds to a single device, a scheme in which the state information of all objects related to one message is consistent is proposed.

This is a method of modifying to match the same state attribute value by using attribute information indicating inclusion or interrelationship, and maintaining state consistency without introducing inference or expert system.

In order to achieve the above object, the present invention provides a first process of changing a chain state of a management object in a 10Gbps device delegate management information base, and a combination of states of a management object in a 10Gbps device delegate management information base. And a second step of making a change, a third step of changing a state of an object associated with a relationship attribute in the 10 Gbps device delegate management information base, and a managed object in a delegate function of the 10 Gbps optical transmission system through the first through third steps. And a fourth process of maintaining state information consistency.

1 is a structural diagram of a maintenance subsystem of a 10 Gbps optical transmission device according to the present invention;

2 is a block diagram of a management information base block in a 10Gbps device delegate function for a TMN according to the present invention;

3 is a flowchart illustrating a state information change using a management object inclusion relation and a relationship attribute to maintain state information consistency in a management information base block to which the present invention is applied.

* Explanation of symbols for main parts of the drawings

100: management processor 110: management user interface

120: management application unit 130: delegate connection unit

140: data processing unit 150: MDB

200: delegate processor 210: operator connection

220: delegate processing unit 230: supervisory control connection

240: delegate information base unit 241: configuration management object unit

242: failure management object unit 243: performance management object unit

244: support object unit 250: MIB

300: communication management network operating system 400: supervisory control subsystem

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention proposes a method of ensuring that state information of related objects is matched by using an inclusion relationship or a relationship attribute itself which is information maintained in a management information base.

The physical structure of the management subsystem for connecting to a Telecommunications Management Network (TMN) 300 in a 10Gbps optical transmission system is a Manager Processor (MP) which provides management application functions as shown in FIG. 100) and an Agent Processor (hereinafter referred to as an AP) 200 that provides information of management objects for management applications.

The MP 100 includes a management user interface 110, an application management unit 120, a data processing unit 140, and an agent connection unit 130 for application management processing.

The data maintained in the MP 100 corresponds to the MDB 150, and the AP 100 includes a delegate processing unit 220 and a delegate information base unit 240 for storing and processing management information required by a management processor. In addition, there is a supervisory control connection unit 230 for interfacing with the supervisory control, and a manager connection unit 210 for communication with the management processor.

Data maintained in the AP 100 corresponds to the MIB 250, TMN manager 300 represents the subject that the 10 Gbps optical transmission system is ultimately connected to the TMN to perform the manager function, the high-speed portion or subordinate of the 10 Gbps device The actual resource status is obtained from the Maintenance and Control Processing Subsystem 400 (hereinafter referred to as MCPS) 400.

2 is a functional diagram of a delegate information base performed in a delegate information base (AP) 240 of a 10 Gbps optical transmission management system.

The delegate information base unit 240 includes a configuration management object unit 241, a failure management object unit 242, a performance management object unit 243, and a support object unit 244 as shown in FIG. 2.

In the configuration management object unit 241, there are objects related to a signal that can be accommodated in a 10Gbps optical transmission device, and facilities and state control functions of hardware constituting the same.

In addition, the failure management object unit 242 recognizes and reports the failure of the network and network elements, and performs functions related to diagnosis and recovery.

The performance management object unit 243 has an evaluation and reporting function for the performance of the network and the network elements.

In addition, the support object unit 244 is composed of objects of a function that supports configuration, failure, performance management objects.

The 10Gbps transmission apparatus needs an information base composed of the objects 241 to 244 connected to the communication management network to perform a standardized management function as an agent.

In particular, the configuration management object unit 241 enables configuration management of the 10Gbps device by maintaining the transmission signal object, cross-connection management object, multi-section switching management object, device unit, unit switching object, etc. in the synchronous transmission device.

3 is a flowchart illustrating a management object inclusion relation and a relationship attribute for maintaining consistency of state information in the management information base unit.

When the operation of the 10 Gbps device is started, the delegate function is performed and the management object is initialized so that the state of the 10 Gbps device matches the actual resource information (S1).

After the initialization of the management object, if the M-SET service request for the management status attribute from the communication management network manager or the MP 100 (S2) to access the object (S3).

After changing the property of the managed state to the requested value (S4), it is checked whether the sub-object exists in order to cascading update the state property value of the sub-object in the containment relationship (S5).

If the sub-object exists, check whether the corresponding state property exists in the sub-object (S6).

If there is a state attribute, it is changed to the same state attribute value (S7), and then, if the parent object exists (S8), and if present, the parent object is accessed (S9).

After accessing the upper object, it is checked whether the state attribute exists in the upper object (S10), and if the state attribute exists, all lower object attributes are accessed (S11).

After accessing all the child object properties, a logical AND or OR combination is performed on the state properties of the child objects according to the characteristics of the parent object (S12).

By way of example, the operational state of the transfer group object is itself disabled when all transfer unit objects are disabled.

Alternatively, in the case of the cross-connected object, if only one of the connected endpoint objects is disabled, the self is disabled. When the state is determined based on the above-mentioned basis, the state property value is changed (S13).

If the parent object does not exist (S8) Finally, if the parent object does not exist, it is checked whether the relationship attribute exists (S14). If the relationship attribute exists, the corresponding object is accessed (S15).

After accessing the object, check whether the associated object has a state attribute (S16) and change the state property (S17).

On the other hand, when the change report of the device is received from the monitoring control unit (S18), it is first examined whether the change of the state attribute is necessary (S19).

In the case where the change of the state property is required, the change of the state property is applied by applying from the access (S3) process of the corresponding object.

The configuration management object is permanently executed in the delegate process. If the termination signal is received from the operating system (Operating System, hereinafter referred to as OS) (S20), the operation ends (S20).

As described above, the present invention has the following effects.

First, it is possible to have managed object status attributes according to the standard model in 10Gbps optical transmission system.

Second, state consistency is maintained through network management operation or device reporting of 10Gbps optical transmission system.

Third, state consistency between objects in the relation of inclusion of the 10Gbps optical transmission system management information base is guaranteed.

Fourth, state consistency between objects associated with relational attributes of the 10Gbps optical transmission system management information base is guaranteed.

Claims (5)

A 10Gbps synchronous transmission device capable of performing the standard managed object function of a communication network manager, A first step of changing a chain state of a management object having an inclusion relationship in a 10Gbps device delegate management information base; A second process of combining and changing states of a management object in a related relationship in the 10Gbps device delegate management information base; A third step of changing a state of an object associated with a relationship attribute in a 10Gbps device delegate management information base; And a fourth process of maintaining the management object state information consistency in the delegate function of the 10 Gbps optical transmission system through the first through third processes. The method of claim 1, The first process, A first step of performing a delegate function when the operation of the 10 Gbs device is started and initializing the management object to match the actual resource information; And a second step of accessing the object when the M-SET service request is received for the management status attribute from the communication management network manager or the MP after initialization of the management object. The method of claim 1, The second process, A first step of checking whether the sub-object exists in order to serially change the state attribute value of the sub-object in the containment relationship after changing the attribute of the managed state to the requested value; A second step of checking whether a corresponding property exists in the sub-object when the sub-object exists; A third step of accessing the higher object if the state attribute exists, and after checking that the higher object exists after changing to the same attribute value; Checking whether the state attribute exists in the upper object after accessing the upper object and accessing all lower object attributes when the state attribute exists; A fifth step of accessing all sub-object attributes and performing a logical product or a OR combination according to the state attributes of the sub-objects according to the superior object characteristics; And a sixth step of changing a state attribute value when the state is determined. The method of claim 1, The third process, Determining whether there is a parent object, and if the parent object does not exist, determining whether a relation property exists; A second step of accessing the object when the relationship exists; And a third step of checking whether the associated object has a state attribute after accessing the object, and changing the state attribute if there is a state attribute. The method of claim 1, The fourth process, A first step of examining whether a change of a state attribute is necessary when receiving a change report of the device from the monitoring control unit; A second step of applying the state attribute from the object access process so that the state attribute change is matched; And a third step of terminating the execution when the configuration management object is permanently executed in the delegate processor after receiving the termination signal from the operating system after performing the second step.