KR20040051314A - Optical transfer network management system and Method thereof - Google Patents

Abstract

PURPOSE: An OTN(Optical Transport Network) management system and a control method thereof are provided to logically express maintenance signals of each transmission layer and transfer an alarm state to a network management system. CONSTITUTION: A configuration management object unit(NECNF)(6) includes signals that an OTN can accommodate, a facility of hardware constituting the OTN and objects related to the state control function. A failure management object unit(NEFMF)(8) recognizes failure of the OTN and a network element and reports it, and performs the function related to diagnosing and recovery efforts. A performance management object unit(NEPMF)(9) evaluates performance of the OTN and the network element and reports it. A sub-network connection management object unit(NFSMF)(7) includes objects having the function of managing connection between nodes. A database management system(5) connected to communication management network performs the standard management function.

Description

Optical transfer network management system and method thereof

The present invention relates to an optical transmission network management system and a method of controlling the same. When the terminal is connected to a communication management network and performs a standard management function, a transmission signal configuration management object is transmitted from corresponding device information in an element management system (EMS) even if it is not provided by a device management unit. The present invention relates to an optical transmission network management system and a method of controlling the same, whereby maintenance signals for each transport layer are logically expressed, and an alarm state is transmitted to the network management system.

Conventionally, a processing method for data synchronization between a network management system and a device has been proposed, but all of them focus only on the problem of matching information provided by the device in the network management system.

In order for the upper level administrator to manage the configuration and status of the transmitting device, a standard signaling configuration object interface must be established. In most cases, however, when the device management unit uses a unique data structure, it does not maintain hierarchical information or maintain standard data. Therefore, it is necessary to maintain the standard signal configuration object desired by the network manager using only information provided by the device manager.

As described above, the conventional network management system has a disadvantage in that there is no process of generating and maintaining a signal configuration object to be provided to perform data management as well as standard management function with higher management system among configuration management data.

The technical problem to be achieved by the present invention is to solve the disadvantages of the prior art, by using the device configuration information provided by the device management unit to maintain the signal configuration object instance for each layer, if the communication alarm, etc., even during operation, the corresponding layer signal The present invention provides an optical transmission network management system and a method of controlling the same, which ensures the consistency of all current states by accessing an object, reflecting a state, and notifying a supervisor.

1 is a block diagram of an optical transmission network management system according to an embodiment of the present invention.

2A and 2B are flowcharts of a control method of an optical transmission network management system according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawing

1: upper network management system 3: device management control unit

6: Configuration management object unit 7: Sub-network connection management object unit

8: Fault Management Object Unit 9: Performance Management Object Unit

An optical transmission network management system according to an aspect of the present invention for solving this problem,

The optical transmission network management system is interworked with the NMS (Network Management System), which is the upper network management system, and creates and maintains a signal configuration object from information of the device management control unit 3 (OAMS: Operation, Administration and Management Subsystem). As

A configuration management object unit in which objects related to a facility and a state control function of a hardware capable of accommodating the signal and the hardware are present;

A failure management object unit that recognizes and reports a failure of a network and a network element, and performs a function related to a diagnosis and recovery effort;

A performance management object unit performing an evaluation and reporting function for the performance of the network and the network element;

A sub-network connection management object unit comprising objects of a function of managing a connection between nodes;

A database management system connected to a communication management network and performing standardized management functions;

It includes an interface unit for interfacing the operator's command.

The present invention ensures to maintain the signaling configuration object instance for each layer by using the device configuration information provided by the device management unit in the network element management system. That is, it includes a function of initially identifying which signal layer corresponds to a device unit type and creating an object instance with a unique identifier. In addition, if a communication alarm occurs during operation, the corresponding layer signal object is accessed to reflect the status and notified to the upper level manager to ensure the consistency of all current statuses.

The optical transmission network element management system of the present invention is defined and managed by three transport layers such as optical transmission, optical multiplexing, and optical channel. The network element management system may provide a standard configuration management function when the signal configuration is maintained as a standard object between the device management function unit and the standard network management function unit.

When connected to and managed by the standard communication management network, the manager grasps each transmission section state or performs a management function through the signal configuration object. However, the device management function unit does not provide configuration information of the signal management object.

In such a case, it is possible to provide a standard signal configuration object function by creating a signal object from the device information to maintain related information and to handle maintenance signal alarms. As a result, it is possible to provide a standard transmission signal configuration management function through an EMS. Can be.

The control method of the optical transmission network management system according to another aspect of the present invention for solving this problem,

It consists of Optical Transmission Section (OTS), Optical Multiplex Section (OMS), Optical Channel Section (OCH), interlocked with higher network management system, and information of device management controller. As a control method of an optical transmission network management system that creates and maintains a signal configuration object from

A first step of creating a representative network element object of the device configuration and in turn creating a device configuration object;

A second step of generating a self device object and generating objects corresponding to each slot unit constituting a self when a self-initialization report message is received from the device management controller;

Comparing whether the device is an OTS signal, and if it is correct, constructing a unique identifier value corresponding to the OTS signal from the device configuration information to generate an OTS transmission signal object;

A fourth step of generating an OMS transmission signal object by comparing an OMS signal device or an OMS signal device by configuring a unique identifier value corresponding to the OMS signal from the device configuration information if appropriate;

And a fifth step of generating an OCh transmission signal object by constructing a unique identifier value corresponding to the OCh signal from the device configuration information if the OMS signal device is compared to the OCh layer signal device.

The present invention will be described below with reference to the accompanying drawings so that the present invention can be easily implemented by those skilled in the art.

First, the structure of an optical transport network (OTN) management system function will be described with a drawing.

1 is a block diagram of an internal and related software system of the optical transmission network management system 2 according to an embodiment of the present invention.

The optical transmission network management system enables high-speed large-capacity communication by increasing the optical fiber transmission path and increases the capacity of the optical transmission device. Wavelength Division Multiplexing (WDM) devices are used to utilize different wavelengths. It is a device for period transmission that provides multiplexing effect by transmission and meets the needs of information society including Internet users.

The transport layer of the optical transmission network management system is largely divided into three layers. The transmission layer is composed of an optical transmission section (OTS), an optical multiplex section (OMS), and an optical channel section (OCH). Maintenance and management is possible.

In order for the optical transmission network management system to be managed according to a standard, interworking with the upper network management system 1 (NMS) is performed.

In addition, standard management objects are generated based on the information of the system. At this time, the management control unit 3 of the device is an OAMS (Operation, Administration and Management Subsystem).

Accordingly, the application software of the present invention is an OEMS (OTN Element Management System), which is a network element management system 3 that manages optical transmission network management nodes.

Referring to Fig. 1, the optical transmission network management system includes NECMF 6 as a configuration management object unit, NESMF 7 as a sub-network connection management object unit, NEFMF 8 as a failure management object unit and NEPMF 9 as a performance management object unit. It is composed.

In the configuration management object unit 6, there are objects related to a signal that can be accommodated in the optical transmission network management system 2, and facilities and state control functions of hardware constituting the same. The failure management object unit 8 recognizes and reports a failure of a network and a network element, and performs a function related to a diagnosis and recovery effort. The performance management object unit 9 has a function of evaluating and reporting the performance of the network and the network elements. Sub-network connection management object unit 7 is composed of objects of the function of managing the connection between nodes. In the optical transmission network management system (2), a database management system (5) composed of the above objects is required to perform a standardized management function as an agent connected to a communication management network. In addition, the configuration, failure, and performance management functions of the EMS are made through the GUI (4) operator's command delivery and status display.

Configuration management objects in the optical transmission network management system 2 include not only device configurations but also signal configurations.

Configuration management objects are related to each other and thus are affected by one management operation. As the status is checked through the network configuration management object and the control request is made, it must be maintained in the standard form in the EMS.

However, in the device management unit 3, the concept of layering does not necessarily exist in the form of a management object. Therefore, it is necessary to provide such that even if only the physical device configuration information is received from the device management unit 3 by using the EMS, the relevant information is used and the signal configuration management object can be maintained. This ensures device configuration information consistency and control with a standard network management system through the interface of all signaling configuration objects.

Referring to the operation of the optical transmission network management system according to an embodiment of the present invention having such a configuration as follows.

2A and 2B are flowcharts of generating and maintaining a signal configuration object from information of the device manager.

First, when the network element management system is executed, it transmits an initialization configuration request message to the device manager to control (S21).

Then, an arbitrary operation message is received from the device management controller 3 (S22). In the case of the initialization configuration response or report (S23), since the initialization of the device is started, a representative network element object of the device configuration is generated (S24). ).

Next, device configuration objects are created in order, and first, objects corresponding to hardware racks are generated (S25).

Subsequently, the process of generating self objects corresponding to the rack is performed (S27).

When the self-initialization report message is received from the device management control unit 3 (S26), the self-device object generation step (S27) is similarly started.

After the self device object is created, objects corresponding to each slot unit constituting the self are generated (S28). At this time, a signal configuration object is generated by comparing whether the unit is related to signal transmission for each layer.

First, it is compared whether the device is an OTS signal (S29), and if it is correct, a unique identifier value corresponding to the OTS signal is configured from the device configuration information (S30) to generate an OTS transmission signal object (S31).

If it is not the OTS signal device, the OMS signal device is compared (S32), and if it is corrected, a unique identifier value corresponding to the OMS signal is configured from the device configuration information (S33) to generate an OMS transmission signal object (S34).

If it is not an OMS signal device again, it compares whether it is an OCh layer signal device (S35), and if it is correct, a unique identifier value corresponding to the OCh signal is configured from the device configuration information (S36) to generate an OCh transmission signal object (S37).

During operation, an alarm may be reported from the device manager (S41). At this time, an alarm source and an alarm cause may be extracted (S42), and if the communication alarm corresponds (S43), it may be reflected in the transmission signal object.

That is, when the alarm source is related to the OTS signal device (S44), the state is reflected in the OTS signal object (S45) and the upper network manager is notified as the alarm of the OTS signal (S46).

If the alarm source is related to the OMS signaling device (S47), the state is reflected in the OMS signal object (S48) and the upper network manager is notified as an alarm of the OTS signal (S49).

If the alarm source is related to the OCh signal device (S50), the state is reflected in the OCh signal object (S51) and the upper network manager is notified as an alarm of the OCh signal (S52).

If the alarm type is a communication alarm but does not correspond to any signal, an error is output (S53). If it is not a communication alarm, the corresponding device object is found and reflected (54) and notified to the upper network manager as an alarm of the device object (S55).

The configuration management object maintenance is permanently performed in the network management system process. If the termination signal is received from the operating system (OS) (S61), the execution is terminated.

The embodiments of the present invention described above may be variously modified, and the components may be implemented in software or hardware as necessary.

As described above, in the embodiment of the present invention, an optical transmission network management system having the advantages as described below and a control method thereof may be provided.

1) In the OTN optical transmission system, it is possible to hold signal configuration management data according to the standard model.

2) It can perform signal configuration management request function of OTN optical transmission system from standard network manager.

3) Status monitoring by layer of OTN optical transmission system is possible.

4) It ensures information consistency by reflecting the signal configuration change processing of OTN device.

5) Reflect on the transmission signal object according to the status report of the OTN device and notify the NMS according to the standard notification method.

Claims (8)

An optical transmission network management system interworking with an upper network management system and generating and maintaining a signal configuration object from information of a device management controller, A configuration management object unit in which objects related to a facility and a state control function of a hardware capable of accommodating the signal and the hardware are present; A failure management object unit for recognizing and reporting a failure of the network and network elements, and performing a function related to a diagnosis and recovery effort; A performance management object unit performing an evaluation and reporting function for the performance of the network and the network element; A sub-network connection management object unit comprising objects of a function of managing a connection between nodes; A database management system connected to a communication management network and performing standardized management functions; Optical transmission network management system including an interface unit for interfacing a command of the operator. The method of claim 1, The configuration management object unit initially detects which signal layer corresponds to a device unit type and creates an object instance with a unique identifier. The method of claim 1, The performance management object unit, if a communication alert occurs during operation, the optical transmission network management system, characterized in that to access the layer signal object to reflect the status and notify to the upper manager. It consists of Optical Transmission Section (OTS), Optical Multiplex Section (OMS), Optical Channel Section (OCH), interlocked with higher network management system, and information of device management controller. As a control method of an optical transmission network management system that creates and maintains a signal configuration object from A first step of creating a representative network element object of the device configuration and in turn creating a device configuration object; A second step of generating a self device object and generating objects corresponding to each slot unit constituting a self when a self-initialization report message is received from the device management controller; Comparing whether the device is an OTS signal, and if it is correct, constructing a unique identifier value corresponding to the OTS signal from the device configuration information to generate an OTS transmission signal object; A fourth step of generating an OMS transmission signal object by comparing an OMS signal device or an OMS signal device by configuring a unique identifier value corresponding to the OMS signal from the device configuration information if appropriate; And a fifth step of generating an OCh transmission signal object by constructing a unique identifier value corresponding to the OCh signal from the device configuration information if the OMS signal device is compared to the OCh layer signal device. . The method of claim 4, wherein The first step is a control method of the optical transmission network management system, characterized in that to create the objects corresponding to the hardware rack, and then to the self objects corresponding to the rack. The method of claim 5, The second step is a control method of the optical transmission network management system, characterized in that to generate a signal configuration object by comparing whether the unit is involved in the signal transmission for each layer. The method of claim 4, wherein A sixth step of extracting an alarm source and an alarm cause and applying it to a transmission signal object if an alarm is reported by the device manager during operation; A seventh step of reflecting the state in the OTS signal object and notifying the upper network manager as an alarm of the OTS signal when the alarm source is related to the OTS signaling device; An eighth step of reflecting the state in the OMS signal object and notifying the upper network manager as an alarm of the OTS signal if the alarm source is related to the OMS signaling device; A ninth step of reflecting a state in the OCh signal object and notifying the upper network manager as an alarm of the OCh signal when the alarm source is related to the OCh signaling device; Outputting an error if the alarm type is a communication alarm but does not correspond to any signal; If it is not a communication alarm, the network management system control method comprising the eleventh step of finding and reflecting the device object and notifies the upper network administrator as an alarm of the device object. It consists of Optical Transmission Section (OTS), Optical Multiplex Section (OMS), Optical Channel Section (OCH), interlocked with higher network management system, and information of device management controller. A recording medium recording a control method of an optical transmission network management system for creating and maintaining a signal configuration object from A first step of creating a representative network element object of the device configuration and in turn creating a device configuration object; A second step of generating a self device object and generating objects corresponding to each slot unit constituting a self when a self-initialization report message is received from the device management controller; Comparing whether the device is an OTS signal, and if it is correct, constructing a unique identifier value corresponding to the OTS signal from the device configuration information to generate an OTS transmission signal object; A fourth step of generating an OMS transmission signal object by comparing an OMS signal device or an OMS signal device by configuring a unique identifier value corresponding to the OMS signal from the device configuration information if appropriate; Stores a program in which a function is implemented that includes a fifth step of generating an OCh transmission signal object by configuring a unique identifier value corresponding to an OCh signal from the device configuration information when comparing with an OCh layer signal device if it is not an OMS signal device. Record carrier.