KR100950487B1 - Network Management System and Operating Method thereof - Google Patents

Abstract

The present invention relates to a network management system and a load balancing method for improving network management efficiency by distributing network loads imposed by a plurality of user terminals. A CORBA-based application server; And at least one UI server for receiving and storing the operation state data of the allocated network equipment from the application server, and outputting the operation state data to the user terminal. By shortening the time, the connection setup time for controlling the network equipment in the user terminal is reduced, and the load of the network is reduced so that the data transmission in the network can proceed smoothly.

In particular, it is possible to quickly set up and restore a large amount of management information in a large network or network equipment, thereby improving the performance of the KOVA based network management system and improving the reliability of the system.

COVA, Network Equipment, Mesh, Load, NMS

Description

Network management system and its operation method

The present invention relates to a network management system and a method of operating the same, and more particularly, to a network management system and a method of operating the same, which improves the efficiency of network management by distributing the network load imposed by a plurality of user terminals.

NMS (network management system), a network management system, is generally manufactured and operated by a telecommunications network service company and controls network equipment (NE) to be managed, and performs functions such as configuration management, performance management, and fault management. do.

1 is a diagram schematically illustrating a configuration of a general CORBA-based network management system.

A general network management system collects information about the performance status of network equipment (not shown) constituting each node and builds a database for performing efficient network management as shown in FIG. 1. Status information about the network equipment is reported to the management server (1) established for network management at regular intervals. The management server (1) collects this information, stores it in a database, and reports it to the manager if necessary.

When an abnormal operation or a data processing error occurs, the network equipment generates an appropriate type of alarm, which is reported to the management server 1 because the alarm corresponds to information related to the operating state of the network element.

On the other hand, in the CORBA (Common Object Request Broker Architecture) -based network management system, when the administrator accesses the management server 1 for the management of network equipment, the administrator through the GUI provided to the user terminal (3) management server ( 1), the management server 1 generates one management object for each network equipment object to be managed and provides them to the connected user terminal 3, and the status information of each management object provides the corresponding GUI. To be output to the administrator.

At this time, each of the management object is created every time the administrator accesses the management server (1) provides the status information, so a large number of network equipment managed by the management server (1) when a plurality of administrators access the management server (1) Duplicated managed objects are created. For example, in a management server of a network management system that manages 100 network devices, when a GUI is connected through terminal A, a management object for 100 network devices is generated and provided to terminal A. At this time, when each GUI is connected simultaneously or sequentially through the B terminal, the C terminal, and the D terminal, 100 management objects are generated and provided to each GUI. Therefore, the management server creates and provides a total of 400 management objects. In particular, since the reference data for the provided management object is received from each GUI after providing the management object for each GUI, the load placed on the management server and the network at the initial connection with each GUI is greatly increased. This increases significantly as the number of management objects of the network equipment to be managed increases as the size of the network increases, which places an excessive load on all of the administrator's GUI, the network, and the management server. In addition, if the connection between the GUI and the management server is abnormally terminated due to such an overload, the above process must be repeated again when reconnecting, so that there is a problem that normal management becomes difficult.

The present invention is to solve the above problems, an object of the present invention in the network management system, by distributing the excessive load placed on the management server and the network so that the management server can operate normally, and is transmitted and received through the network The present invention provides a network management system and an operation method for improving a data transmission speed.

It is another object of the present invention to provide a network management system and an operation method for enabling an administrator to utilize a variety of functions in managing a network by performing additional additional functions in a separate UI server. .

Network management system according to a first aspect of the present invention for achieving the object of the present invention as described above is an application server for managing the operating state of each network equipment constituting the network based on CORBA (CORBA); And at least one UI server for receiving and storing the operation state data of the allocated network equipment from the application server and outputting the operation state data to the user terminal. To be distributed.

A method of operating a network management system according to a second aspect of the present invention is a network management system that manages a plurality of network equipment based on CORBA. When a request is transmitted through a GUI of a user terminal, the method is determined according to the request. Generating a management object for performing a command of each allocated network device and transmitting the generated management object to the user terminal; And converting the input command into an application server and transmitting the command when the command for the corresponding network device is input through the transferred management object, thereby preventing operation delay and improving speed by distributing network load. do.

As described above, the network management system and its operation method according to the present invention arranges at least one UI server between an application server and a user terminal, thereby distributing the load concentrated on the application server and the network to the UI server. By shortening the connection setup time for controlling the network and reducing the load on the network, there is an effect that data transmission in the network can proceed smoothly.

In particular, it is possible to quickly set up and restore a large amount of management information in a large network or network equipment, thereby improving the performance of the KOVA based network management system and improving the reliability of the system.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

CORBA (Common Object Request Broker Architecture) is a common bus architecture between distributed elements defined by the object management group. It defines the types and interconnection methods between distributed elements, and it is a network management system that has good system flexibility and scalability with other systems. It is adopted a lot.

2 is a schematic diagram showing the structure of a CORBA-based network management system according to the present invention.

CORBA-based network management system according to the present invention is connected to a plurality of network equipment (not shown) to manage, the application server 100 for managing the operation state of the network equipment, and the network server by accessing the application server 100 It includes the user terminal (300a, 300b) to check the state of the command and to indicate the operation command. In addition, to reduce the load concentrated on the application server 100 includes at least one UI server (200a, 200b) disposed between the application server 100 and the user terminal (300a, 300b).

The application server 100 and the UI servers 200a and 200b are connected to a wide area network (WAN), and the UI servers 200a and 200b and the user terminals 300a and 300b are connected to a local area network (LAN). It is preferable. In this case, the UI servers 200a and 200b may also function as gateways connecting the WAN and the LAN. The network consisting of the network equipment, the application server 100, the UI server (200a, 200b) and the user terminal (300a, 300b) is in the form of TCP / IP protocol and through the Internet Inter-ORB Protocol (IIOP) of CORBA Can be connected to the Object Request Broker (ORB).

The UI servers 200a and 200b prevent excessive loads imposed on the application server 100 and the network by a plurality of user terminals in a data transmission / reception operation performed between the application server 100 and the user terminals 300a and 300b. For the purpose of receiving the state information data for the predetermined network equipment from the application server 100 and stored in advance, when a request from the user terminal comes to provide it to the GUI of the user terminal.

That is, since the UI servers 200a and 200b are distributed and distributed to all network equipment managed by the network management system, the load concentrated on the application server 100 is distributed to the plurality of UI servers 200a and 200b, and the LAN is distributed. Since the user terminals 300a and 300b and the UI servers 200a and 200b perform data communication, the data reception speed in the user terminal may be greatly increased.

At this time, the network equipment managed by the UI server (200a, 200b) may vary depending on the setting, but the center of the point where the UI server is located in that the user terminal (300a, 300b) and the UI server (200a, 200b) is connected to the LAN In this regard, the network equipment may be allocated to network equipment belonging to a certain range of area. Accordingly, at least one UI server 200a or 200b may be disposed in each region in consideration of resources of the entire network management system.

CORBA, on the other hand, provides a naming service by default. Naming service provides functions related to registration and retrieval of object information so that implementation objects can register their own information, and clients can retrieve necessary implementation object information by name and obtain the information of the implementation object. It is a service that provides a naming server in the network.

3 is a flowchart illustrating an initial connection between a UI server and a network in a network management system according to an exemplary embodiment of the present invention.

First, in step S10, when the UI server 200 is added to a CORBA-based network to which a plurality of network equipment and an application server is connected, the UI server 200 transmits data indicating that a new connection is made to the naming server 400. . The naming server 400 receives data indicating that a new connection is made from the UI server 200 and registers the UI server 200 in the naming tree. In addition, the network device list to be managed by the newly connected UI server 200 is relocated to a lower layer of the UI server 200 through the position of the UI server 200 included in the received data.

Next, in step S20, when the administrator connects to the newly connected UI server 200 through the GUI provided to the user terminal 300, the GUI registers a list of event handlers in the UI server, naming server 400 Provides the user terminal 300 with the UI server 200 information connected to the connected user terminal 300 and a list of network equipment to be managed by the UI server 200.

In this case, when the event handler is registered as a handler during the operation of the UI server, the event handler provides data corresponding thereto to the GUI of the user terminal. For example, when the network equipment to be managed suddenly fails or has an error. This can be quickly detected and reported to the administrator.

That is, when a new UI server 200 is connected to the network, the UI server 200 is automatically registered in the naming server 400, and the naming server 400 is the UI server 200 in which at least one network device is newly registered. In the registration to the management list of the UI server 200 to be managed after.

When deleting the UI server 200 connected to the network in a similar manner, the naming server 400 deletes the registration of the UI server 200, and was registered under the deleted UI server 200. At least one network device list may be rearranged to another UI server or placed as a parent list. In addition, the GUI of the user terminal 300 may check whether the connection is normally performed while being connected to the UI server 200.

4 is an exemplary diagram illustrating an example of a naming tree in the network management system according to an exemplary embodiment of the present invention.

The naming tree for object management arranges the registered UI server under the root of the highest root as shown in FIG. 4 and identifies the unique ID received at the initial connection of the UI server. In addition, the type and unique ID of the network equipment allocated to the UI server are sequentially disposed below each UI server, and an object necessary for each network equipment may be disposed below the UI server. At this time, each UI server is assigned a unique ID for each jurisdiction, as shown in Figure 4 may be named BUSN, KURO, YGIN.

In a network management system according to a preferred embodiment of the present invention, the UI server may be implemented to perform the functions of a state management module, a proxy module, and a messaging module.

5 is a flowchart illustrating an operation when a UI server performs a function of a state management module in a network management system according to an exemplary embodiment of the present invention.

In step S100, first, when the UI server 200 is initially connected to the network and registered in the naming tree, the state management module of the UI server accesses a database (DB) connected to the application server 100 to obtain state information data of a desired network device. Search and collect it.

In addition, in step S110, the UI server 200 registers itself and a list of predetermined network equipment to be managed by the application server 100, and registers an event handler to generate an alarm event. When this occurs, the state information data of the corresponding network equipment is transmitted to the UI server 200. In this case, an alarm event is generated when a state of the network equipment that is determined to be noticed or checked by the administrator is detected. The alarm event may be set to a degree that the administrator needs to pay attention or check in advance. .

In operation S120, the collected state information data is stored in a memory cache. In this case, the database DB connected to the application server 100 stores unique information and status information data of all network devices managed by the application server 100, and the database DB is the application server 100. It may be configured as a predetermined storage device or configured as a separate server within the application server 100. In addition, the specific state information data stored in the UI server 200 is stored in the memory cache, the effect of providing the data to the user terminal 300 more quickly than when stored in the general memory upon request of the data There is.

On the other hand, in step S130, when the administrator connects to the UI server 200 through the GUI of the user terminal 300, the state management module of the UI server 200 generates a management object for each network equipment, in step S140 Among the state information data of each network device stored in the memory cache, together with the management object generated by summing up the state information data to be noticed, such as the state information data received from the application server 100 by the alarm event. Transmission to the user terminal 300 to be output through the GUI of the user terminal.

6 is a flowchart illustrating an operation when a UI server performs a function of a proxy module in a network management system according to an exemplary embodiment of the present invention.

The proxy module is a module for mediating between the user terminal 300 and the application server 100 using different frameworks when giving a command for network equipment from the user terminal to the application server 100. In operation S40, when output to the state information of at least one or more network equipment provided by the UI server 200 through the user terminal 300, a control command is input through the GUI of the user terminal 300 according to the administrator's decision. The input control command is transmitted to the UI server 200 through a network. Specifically, for example, a verb get command is input when a return value is requested, and a verb command can be input when a return value is not required. have.

In step S50, the proxy module of the UI server 200 analyzes the control command from the user terminal 300 and converts the received command data into a data type for the server so that the application server 100 can read it. In addition, the converted command data is transmitted to the application server 100.

The application server 100 reads the received operation command data, generates and transmits a control command so that the corresponding network equipment can perform the requested command, and in step S60, the command input through the user terminal 300 returns. If a value is requested, the corresponding return data is generated and transmitted to the proxy module of the UI server 200. In step S70, the proxy module analyzes the received return data, converts the result data into a data type for the UI so that the result data can be read by the user terminal 300 and output to the manager, and then transmits the result data to the user terminal 300. The user terminal 300 reads the return data transmitted from the proxy module of the UI server 200 and outputs the returned data to the manager through the GUI.

On the other hand, in the network management system according to an embodiment of the present invention, the UI server may provide convenience to the user, but may provide additional functions that are difficult to perform in a conventional application server. As a specific example, an operation of the UI server for mediating messages between a plurality of user terminals connected for network management will be described.

7 is a flowchart illustrating an operation when a UI server performs a function of a messaging module in a network management system according to an exemplary embodiment of the present invention.

That is, when the first user terminal wants to transmit and receive a message with the second user terminal through the UI server, in step S80, first and second user terminals first transmit a message transmission and reception request to the UI server. The messaging module of the UI server registers the first and second user terminals to transmit and receive messages, and if a predetermined message is input from the first user terminal in step S90, the messaging module transmits the message to the second user terminal in step S95.

In addition, when the GUI of the user terminal provides map data indicating the location of each UI server and network equipment on a map, when the UI server or network equipment is added, deleted or changed in a naming tree or application server The map data is also changed. Therefore, by generating an event for the change of the map data in the terminal, the map data is updated, it may be operated to synchronize all the map data of each terminal by transmitting to other nearby terminals or a specific terminal.

Specifically, when the map data is updated in the first user terminal, an event for changing the map data occurs. In this case, when a specific terminal, such as a second user terminal, is designated as a setting for the event by the first user terminal, when a change event occurs, a message about a map data change is transmitted to the second user terminal. In addition, the second user terminal may update the map data based on the received message.

Meanwhile, in the load balancing method of the network management system according to the preferred embodiment of the present invention operating as described above, the internal configuration of the network management system on which the method is performed may be performed as follows.

8 is a block diagram showing the internal configuration of a network management system according to an embodiment of the present invention.

As shown in FIG. 8, the network management system according to the preferred embodiment of the present invention includes an application server 100, a UI server 200, and a user terminal 300, and has jurisdiction in the application server 100. It may be configured to further include a database (DB) that stores the state information data for all the network equipment.

The application server 100 includes a communication module 170 connected to the UI server 200 and a database DB and a management control module 120 for controlling the overall operation of the application server 100. The management control module 120 operates or provides control logic for giving status information inquiry or operation command to each network device connected to the network.

UI server 200 is connected to the application server 100 and the WAN to the communication module 250 for transmitting and receiving data and the above-described state management module 220, proxy module 230, and messaging module 210 It is configured to include. In addition, the network device configured to manage is configured to include a memory cache for storing the status information data obtained from the application server 100, the memory cache is configured to include in the memory 240, the UI server in the storage other than the memory cache User data such as a control program or an administrator setting for the operation of each module may be stored.

As described above, the network management system and its load balancing method according to the present invention have been described with reference to the illustrated drawings, but the present invention is not limited to the embodiments and drawings disclosed herein, and state information data for some network equipment. It is obvious that the technical idea of the present invention to minimize the network load by arranging a stored UI server and mediating data transmission and reception at the UI server can be easily applied by those skilled in the art within the scope of the claims. .

1 is a schematic diagram showing the structure of a general CORBA-based network management system,

2 is a schematic diagram showing the structure of a CORBA-based network management system according to the present invention;

3 is a flowchart illustrating an initial connection between a UI server and a network in a network management system according to an embodiment of the present invention;

4 is a diagram illustrating an example of a naming tree in a network management system according to an embodiment of the present invention;

5 is a flowchart illustrating an operation of a state management module in a network management system according to an embodiment of the present invention;

6 is a flowchart illustrating an operation of a proxy module in a network management system according to an embodiment of the present invention;

7 is a flowchart illustrating an operation of a messaging module in a network management system according to an exemplary embodiment of the present invention.

8 is a block diagram showing the internal configuration of a network management system according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: application server 120: management control module

200: UI server 210: messaging module

220: state management module 230: proxy module

240: memory 300: user terminal

Claims (8)

An application server for managing a plurality of network devices configuring a network based on CORBA; And Receiving and storing operation state data of the at least one pre-allocated network equipment from the application server, Including a plurality of UI server for providing the operation state data for the network equipment to the user terminal, The plurality of UI server, the network management system, characterized in that for mediating transmission and reception between the user terminal and the application server. The method of claim 1, The UI server is connected to the user terminal through a local area network (LAN), network management system, characterized in that connected to the application server via a wide area network (WAN). The method of claim 1, The UI server receives and stores operation state data for a predetermined network device from the application server, and generates a management object for each network device upon request from the user terminal and transmits the management object to the user terminal. Status Management Module Network management system comprising a. The method of claim 3, wherein When the UI server receives an operation command for the corresponding network equipment through the transmitted management object, the UI module converts the operation command to be operated in an application server and transmits the operation command to the application server. Network management system comprising a. The method of claim 2, The UI server network management system comprising a messaging module for mediating transmission and reception of user messages between a plurality of different user terminals. In the operation method of a network management system composed of an application server and a plurality of UI server to manage a plurality of network equipment based on CORBA, Receiving, by the plurality of UI servers, operation state data of the at least one pre-allocated network equipment from the application server and storing the operation state data in a memory; When the request is transmitted to the UI server through the GUI of the user terminal, generating, by the UI server, a management object for executing a predetermined command according to the request for each allocated network equipment, and delivering the management object to the user terminal; And When the command for the network device is input to the UI server through the management object delivered from the GUI of the user terminal, converting the input command to suit the application server, characterized in that for transmitting the How it works. delete The method of claim 6, Determining whether the second user terminal is an accessible terminal when a predetermined message for transmitting from the first user terminal to the second user terminal is input; And If the terminal is accessible, transmitting the message to the second user terminal; otherwise, searching for and transmitting another UI server connected to the second user terminal. Operating method of a network management system comprising a.

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