KR20010053861A - Device for the real-time notification of a customer network fault in multi-layer data networks and method thereof - Google Patents

Abstract

PURPOSE: An apparatus for notifying customer network fault data of a multilayer data network in real-time is provided to download an applet and a stub and to activate a CORBA(Common Object Request Broker) to register a user object reference in a server, so as to notify a user terminal of fault/alarm states through 'IIOP(Internet Inter ORB Protocol)' communication. CONSTITUTION: A configuration control function processor(41) requests contents relating to a configuration and a control of a required connection to a section management system(6). A profile manager(42) stores a profile of the connection and a port in a management information database(47). An event processor(43) stores a fault profile table in the management information database(47) and classifies fault-related information transmitted from the section management system(6), and requests a profile change to the profile manager(42), then checks a user login state in an access manager(45). If a user is in a logout state, the event processor(43) stores the contents in a log to be retrieved afterward. If the user is in a login state, the event processor(43) requests a final fault data notifying, by using a user object reference. A statistical function processor(44) selects information relating to the connection and the port from a network management system(7). The access manager(45) manages the user object reference and receives an event process request from the event processor(43) to finally notify the user of a fault content. An interface(46) performs a web connection between a web browser(5) and a CNMS(Customer Network Management Service)(4). The management information database(47) stores the user object reference and entire data.

Description

Device for the real-time notification of a customer network fault in multi-layer data networks and method

The present invention relates to an apparatus and method for real-time notification of customer network failure data in a multi-layer data network. The present invention relates to a method of downloading an applet of a server and a stub of a server object using a browser, and then a common object request broker. : Device and method for enabling user to receive real-time notification of failure and alarm status by 'IIOP (Internet Inter ORB Protocol) communication using user's terminal to register user object reference to server by activating CORBA).

In general, a high-speed information communication network is a network that provides frame relay, Internet access, and Internet backbone services based on an asynchronous transfer mode (hereinafter referred to as ATM).

Such a network basically forms the hierarchical network of ATM Virtual Path (VP) and Virtual Channel (VC), respectively, in the Telecommunication Standardization Sector of ITU (ITU-T) G.805. It builds a multi-tiered data network of client-server relationships. The main service target of the high-speed information communication network that constitutes the multi-layer data network is a permanent virtual circuit (PVC) service to corporate customers. In addition, it is possible to provide an improved service by providing a customer network management (hereinafter referred to as CNM) service.

Customer network management is a concept that aims to provide customers with the ability to monitor and control the use of their services, so that they can manage their own private network and the services they receive. For the flexibility and convenience of control, the service provider can be provided with operational efficiency due to the integrated network management structure.

The Customer Network Management Service (CNMS) provides the management information on the part of the subscriber network in the public network for the above purposes in terms of configuration, performance, and faults, allowing customers to view their virtual networks. Defined as a service that supports efficient maintenance.

The ATM-Forum also defines the general reference model in the ATM-Forum M3 specification, the structure for service provision in the 'ITU-T X.160' standard document, and the CNM management service in the 'ITU-T X.161' standard document. And ITU-T standard documents define customer network management.

However, these standard documents do not describe the actual implementation plan for providing the service, and no concrete implementation plan on the notification method of the failure situation is also presented.

On the other hand, in the case of a critical failure that can cause serious problems in the management system operation in a multi-layered data network, and important failures and events in service provision, immediate notification of failure is required. One of the network management protocols, the 'SNMP (Simple Network Management Protocol)' approach, is polluted to monitor and manage faults, resulting in poor instantaneousness, and disadvantages due to inefficient use of network resources. System-to-system interconnect (OSI) system management takes the event reporting approach by default. However, even in this event report method, there is a disadvantage in that the real time failure notification function and the failure notification reliability is low.

Therefore, there is a need for a technical implementation of fault management to solve the above problems.

In view of the conventional requirements and problems as described above, the present invention, in a multi-layer data network, such as a high-speed information communication network, existing network management technologies define different management information models, and use different management protocols. In consideration of compatibility problems caused by communication, problems of using various management tools, and scalability due to a centralized structure, distributed object technology, Internet technology such as web technology, and Java-based technologies such as It aims to provide various services in stable and real time by applying to system and application management.

In this environment, the purpose of the management, monitoring, and notification of failures is to report the failure to the operator as soon as possible after the failure occurs, allowing the operator to isolate the failure from other network resources, identify the exact cause of the failure, and recover from it. To take.

1 is a structural diagram showing a configuration model for providing a customer network service in a multi-layer data network.

Figure 2 is a block diagram showing the internal configuration of the customer network management system according to the present invention.

Figure 3 is a block diagram showing the detailed configuration of the event processing unit in the customer network management system according to the present invention.

4 is a view showing a failure profile table referenced by the event processing unit according to the present invention.

5 is a flowchart illustrating a process of activating CORBA on a user side when a user logs in according to the present invention.

6 is a flowchart illustrating a process of delivering a failure related event generated from a lower network management system to a user according to the present invention.

<Description of Symbols for Major Parts of Drawings>

1: Switch in public network 2: Network management system

3: service management system 4: customer network management system

5: Customer network management service user 6: Session management system

7: Sub network management system 8: Fault profile table

41: configuration control function processing unit 42: profile management unit

43: event processing unit 44: statistics-related function processing unit

45: access management unit 46: interface unit

47: management information database 48: customer network management server

81: Resource management identification number field 82: User identification number field

83: Disability field 84: Cause of disability field

85: Failure occurrence time field 86: Failure completion time field

87: Notification confirmation field 88: Confirmation period field

89: Maximum number of checks field 431: Fault handler

432: alarm handler 433: alarm manager

In order to achieve the above object, a device for real-time notification of a failure state of a customer network in a multi-layer data network of the present invention may request a corresponding operation object of a session management system by requesting contents related to configuration and control of a user's desired connection. A configuration control function processing unit for processing;

A profile manager for storing the profile of the details of the connection and the port in a management information database to actualize the related contents;

Stores and manages the failure profile table for failures in the management information database, classifies failure-related information received from the session management system by type, requests the profile manager to change the profile, and checks the user login in the access manager to log out. The event processing unit for storing the related contents in a log for later retrieval and requesting to notify the user of a failure situation by using a user object reference registered in the access management unit if the user is logged in;

A statistical-related function processing unit for collecting, processing, and providing information on connections and ports required for operation requested by the user for each subscriber from the network management system for each subscriber;

An access management unit for managing a user object reference to notify the failure notification for each user, and receiving an event processing request from an event processing unit and finally notifying the user of the failure contents;

An interface unit for enabling a web connection between the customer network management user and the customer network management system; And

And a management information database for storing the user object reference and all generated data.

In addition, the method for real-time notification of the customer network failure situation in the multi-layer data network of the present invention for achieving the above object, the customer network management service user and the above to receive the service provided by the customer network management system in real time Registering and managing a user object reference generated during login between the customer network management systems as user location information;

When an error related event occurs during communication between the customer network management system and the user of the customer network management service, a failure message is notified using the object reference.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, a method of notifying a customer network failure situation transmitted from a lower network management system in the multilayer data network will be described in detail with reference to the accompanying drawings.

1 is a structural diagram showing a configuration model for providing a customer network service in a multi-layer data network to which the present invention is applied, comprising: a switch 1 in a public network to which a subscriber premises network (CPN) is connected;

A network management system (2) for managing all situations occurring at the exchange (1);

A session management system that manages sessions for each service in connection with the network management system 2, a subscription management system that stores and manages information on subscribers, and collects and manages information related to billing for multi-layer data network services. A service management system 3 having a direct relationship with a service composed of a management system and a customer network management system;

A customer network management system (4) provided in the service management system (3) for a customer network management service;

It is provided with a customer network management service user (5) connected to the customer network management system (4) to receive a customer network management service.

When all the data including fault related data is collected at the exchange 1 in the public network, the data is transmitted to the network management system 2, and the network management system 2 transmits the data to the session in the service management system 3. To the management system (not shown in FIG. 1). The session management system transmits it back to the customer network management system 4 so as to classify the failure or alarm and handle it correctly.

2 is a diagram illustrating a configuration of a customer network management server according to the present invention, wherein a configuration control function processing unit requests and processes contents related to configuration and control of a connection desired by a user to the corresponding operation object of the session management system 6 ( 41);

A profile manager 42 for storing the profile of the details of the connection and the port in a management information database 47 to actualize the related contents;

Store and manage the failure profile table for failure in the management information database 47, classify the failure-related information received from the session management system 6 by type, and request the profile manager 42 to change the corresponding profile, and access management unit Check the user login at (45) to save the relevant information in the logout state if it is logged out, and to retrieve it later.If the user is logged in, use the user object reference registered in the access management unit 45 to finally fail the user. An event processor 43 for requesting notification of the event;

A statistical-related function processor 44 for collecting, processing, and providing information on connections and ports required for operation requested by the user upon subscription for each subscriber from the network management system;

An access management unit 45 which manages a user object reference to notify the failure notification for each user and receives an event processing request from the event processing unit 43 and finally notifies the user of the failure contents;

An interface unit 46 for enabling a web connection between the customer network management user 5 and the customer network management system 4; And

A management information database 47 for storing all the data generated above is provided.

At this time, the connection method supported by the interface unit 46 is a web server, a mail server, a firewall, an HTTP / IIOP gateway, and the like.

As shown in FIG. 3, the event processing unit 43 classifies a notification received from the session management system 6 in the customer network management system 4 and handles a notification requesting a profile change. Wow;

An alarm processor 432 in charge of notification contents other than notification of profile change among the notifications input from the session management system 6;

And a notification manager 433 which receives the notification confirmation from the customer network management service user 5 and stores the contents thereof in a log.

The failure profile table processed by the event processor 43 is as shown in FIG. 4, which is later stored and managed in the management information database 47.

A resource management identification number field 81 separated by a primary key;

A user identification number field 82 for identifying a user;

A disability status field 83 indicating presence / absence of a disability;

A failure cause field 84 for storing a cause of the failure;

A failure occurrence time field 85 for describing a failure occurrence time in seconds;

A failure processing completion time field 86 for describing a time in which the processing of the generated failure is completed in seconds;

A notification acknowledgment field (87) indicating whether or not the notification for the failure processing should be confirmed by a user;

A confirmation period field 88 which is determined by the user at the time of initial subscription and is a period of retransmitting an alarm for a failure and an alarm not received due to a problem with the user's terminal in the notification manager;

It has a maximum number of confirmation field (89) to refer to the maximum number of times to be transmitted from the notification manager in the confirmation cycle unit.

In this case, the fields correspond to the virtual connection and the port, respectively, and the notification acknowledgment field (87), the confirmation period field (88), and the maximum number of confirmation fields (89) are not a special cause analysis in operation. This item is set by the operator and customer network user to manage the port or connection causing the error.

Therefore, the number of available and maximum number of confirmations for each user at the time of subscription is limited.

One side of the customer network management system 4 configured as described above is connected to the customer network management service user 5 through a web browser, and the other side manages session information for managing session information on connection of different layers made by each layer subscriber. Connected to the system 6, the lower network management system 7 including the ATM network management system, the frame relay network management system, and the IP network management systems, respectively, has a connection request for the connection from the session management system 6, It is a management system that performs major network management functions such as direct connection management, resource configuration management, and performance management, and notifies results or events. In other words, ATM network management system (NMS) for asynchronous delivery mode permanent virtual connection (ATM PVC), frame relay network management system (NMS) for virtual connection to frame relay, and Internet Protocol (IP) related connection. Is managed by the Internet Protocol Network Management System (IP NMS).

Each of the functional modules of the customer network management system 4 having the above configuration and the lower network management system 7 of other systems (ATM, FR, IP) connected thereto may serve a service request of a multi-layer data network. In order to construct a sufficiently acceptable management system, it is composed of operation objects in a distributed computer environment. In such a distributed computer environment, notification of failures and events is performed by calling a function of an operation object constituting each module.

The subscriber using the customer network management service as described above can connect to the customer network management server to configure the desired connection.After accepting the request, the session management system 6 changes the management information thereof and then applies it. By requesting the network management system, the contents are actually reflected and can be operated.

On the other hand, in order to be notified of a failure-related message from the server, such as the management server in real time, the user terminal using the customer network management service should be ready to receive a message from the server by running any application program, in the present invention I am using a web browser.

The customer network management service user 5 inputs data used for the initial entry of the failure notification-related profile in addition to contents for connection and port creation for the service used at the time of subscription, which can be changed later. The profile-related item input here corresponds to the notification confirmation field 87, the confirmation period field 88, and the maximum confirmation count field 89 in the failure profile table 8 shown in FIG.

On the other hand, in order to use the customer network service, the user can access and log in to the customer network management system 4 using a web browser, and then use the service set and requested by the user at the time of subscription. At this time, the reference of each user's COVA object is stored in the management information database 47 by an operation function for managing the user in the access management unit 45 of the customer network management system.

In order to report notification such as failure of each resource (connection or port) for each user, the management server needs to manage user location information. For this purpose, in the present invention, an object in charge of the user management function of the access manager 45 is managed. Have an object reference of the user used at login and store it in the management information database 47.

The reason for storing the reference of the object in the management information database 47 is to reduce the load on the server object. The more users who use the customer network management service, the more the server object has a reference of the object to the user, which consumes more memory, which can affect performance.

FIG. 5 is a diagram illustrating a process in which a cobar is activated on a user side when a user logs in. The customer network management service user 5 accesses the web server 48 of the customer network management system 4 through a web browser and logs in. , The web browser downloads the 'HTML' page (S1) and recognizes the applet tag. The applet is in bytecode form. The Java interpreter then downloads the top-level code to execute the referenced top-level Java class (S2), downloads the Interface Definition Language (IDL) stub (S3), and then downloads the required object web class ( S4).

Accordingly, COVA is activated (S5), the downloaded Java applet can interact with the COVA process in the customer network management server 48 using 'IIOP (Internet Inter-ORB Protocol)' (S6).

When COVA is activated as described above, the process of managing the user of the access management unit 45 at the time of login converts the object reference of the user into a string and stores it in the database, and each time the user logs in, the customer network management server 48 ) To register and manage your references.

The process of generating and delivering a fault related event in an environment in which a user object reference is managed for each user will be described with reference to FIG. 6.

The process of notifying the user of the failure or alarm related information transmitted from the session management system 6 to the customer network management system 4 is as follows.

The notification delivered to the customer network management system 4 first requests an operation for changing the profile of the connection and the port of the profile manager 42 in the error handler 431 of the event processor 43 when the classification is a failure-related notification. Modify the profile for the failed port or connection. At this time, the content of the modified profile is about the operation of the port and the virtual connection (T1).

Subsequently, the failure profile that manages the contents related to the current failure for each connection and port is changed, and the change history is stored in the management information database 47 (T2).

Meanwhile, the user login state is checked by reading login-related data from the management information database 47 table which stores a reference of the object when the user logs in in the above state (T3).

If the user is not logged in as a result of the check, the fault-related notification is stored in a log so that the user can search for a corresponding problem when the user later accesses the server to use the customer network management service (T4).

In addition, when the user is logged in as a result of the check, the object reference of the user stored in the database is read and the failure is notified to the user using the IIOP communication protocol (T5).

Then, after notifying the contents of the failure, check whether the corresponding connection or port requires notification confirmation, and notify the customer network management system 4 of the notification confirmation when requesting confirmation, and terminate when not required. T6).

Subsequently, after completion of the notification confirmation, the alarm manager 433 of the event processing unit 43 in the customer network management system 4 records the notification contents in the log related to the failure and ends (T7).

On the other hand, when the notification content from the session management system 6 is an alarm, the connection or port of the profile manager 42 is connected to the alarm processor 432 of the event processor 43, which is the first step T1 of FIG. After the operation for changing the profile is requested, the third process (T3) is performed, and then the procedure is performed in the same manner as the notification related to the failure.

As described in detail above, the present invention provides a fault and alarm related notification using a server device to provide a customer network management service, which is an improved service in a multi-layered data network. Solve the problem of wasting network resources and increasing the load on the server as the number of subscribers is increased, and implementing a device that performs the function of receiving notification from the processor in the client network management server to the client using the service. By using Java portability, the server object stub is downloaded to the client, enabling COVA to register the user object reference to the server, and by using IIOP to solve the communication with the server, it is possible to provide faults and alarms to users in real time. It is noticeable There is, involves the effect of providing an improved service to the customer network management service users.

In addition, preferred embodiments of the present invention are disclosed for the purpose of illustration, those skilled in the art will be able to make various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and modifications belong to the following claims You should see.

Claims (10)

A configuration control function processing unit for requesting and processing contents related to configuration and control of a connection desired by a user to a corresponding operation object of a session management system; A profile manager for storing the profile of the details of the connection and the port in a management information database to actualize the related contents; Stores and manages the failure profile table for failures in the management information database, classifies failure-related information received from the session management system by type, requests the profile manager to change the profile, and checks the user login in the access manager to log out. The event processing unit for storing the related contents in a log for later retrieval and requesting to notify the user of the failure data by using a user object reference registered in the access management unit if the user is logged in; A statistical-related function processing unit for collecting, processing, and providing information on connections and ports required for operation requested by the user for each subscriber from the network management system for each subscriber; An access management unit for managing a user object reference to notify the failure notification for each user, and receiving an event processing request from an event processing unit and finally notifying the user of the failure contents; An interface unit for enabling a web connection between the customer network management user and the customer network management system; And And a management information database for storing the user object reference and all of the generated data. The method of claim 1, The event processing unit may be configured to classify a notification received from a session management system in the customer network management system and handle a notification requiring a profile change; An alarm processor in charge of notification contents other than notification of a profile change among notifications input from the session management system; An apparatus for real-time notification of customer network failure data in a multi-layered data network, comprising: an alarm manager configured to receive notification confirmation from a customer network management service user and store the contents thereof in a log. The method of claim 1, The failure profile table includes a resource management identification number field separated by a primary key; A user identification number field for identifying a user; A disability field indicating whether or not a disability is present; A failure cause field for storing the cause of the failure; A failure occurrence time field describing a failure occurrence time; A failure processing completion time field describing a time for completing the processing of the generated failure; A notification acknowledgment field indicating whether notification of the failure processing should be confirmed by a user; A confirmation period field which is determined by the user at the time of initial subscription and retransmits alarms for failures and alarms which are not received by the notification manager due to problems with the user terminal; Apparatus for real-time notification of customer network failure data in a multi-layered data network, characterized in that it comprises a maximum number of confirmation field to refer to how many times the notification manager transmits in a confirmation cycle unit. The method of claim 3, wherein The notification confirmation whether field, the confirmation period field and the maximum number of confirmation fields limit the number and maximum number of times available for each user upon subscription, the apparatus for real-time notification of customer network failure data in a multi-layer data network. Registering and managing a user object reference generated when a user logs in between the customer network management service user and the customer network management system to receive the service provided by the customer network management system in real time as user location information; A method for real-time notification of customer network failure data in a multi-layer data network, wherein a failure message is notified by using the object reference when a failure related event occurs during communication between the customer network management system and a user of a network management service. The method of claim 5, The failure message notification process may be performed by dividing a notification transmitted to the customer network management system, and in the case of a failure-related notification, requesting an operation for changing a profile of a port and a connection of a profile management unit in a failure processor to determine a port or connection that has failed. Modifying the profile; A second step of changing a failure profile managing contents related to a current failure for each connection and port, and storing the change history in a management information database; A third step of checking a user login state by reading login-related data from a management information database table storing a reference of an object when a user logs in the state; A fourth step of reading the object reference of the user stored in the database and notifying the user of the failure if the user is logged in as a result of the check; A fifth step of checking whether the corresponding connection or port requires notification confirmation after notifying the contents of the failure, and notifying the network management system of the notification confirmation when requesting confirmation, and terminating if not required; And a sixth step of recording the notification contents in a failure-related log and ending through the alarm manager of the event processing unit after completion of the notification confirmation. The method of claim 5, The contents of the profile to be modified when the profile is modified in the first step comprises the information on the operation of the port and the virtual connection. The method of claim 5, If the user is not logged in as a result of the check in the third step, the failure-related notifications are stored in a log so that the user can search for a corresponding failure when the user later accesses the server to use the customer network management service. Method for real-time notification of customer network failure data in multi-layer data network. The method of claim 5, In the failure message notification process, the notifications transmitted to the customer network management system are classified, and in case of all alarms except for the failure-related notification, the failure handler requests an operation for changing the profile of the connection and port of the profile management unit and causes the port to fail. Or modifying a profile relating to the connection; A second step of checking a user login state by reading login-related data from a management information database table which stores a reference of an object when a user logs in the state; A third step of reading the object reference of the user stored in the database and notifying the user of the failure when the user is logged in as a result of the check; A fourth step of checking whether the corresponding connection or port requires notification confirmation after notifying the contents of the failure, and notifying the customer network management system of the notification confirmation if the confirmation is requested, and terminating it if not required; And a fifth step of recording the notification contents in a failure related log and ending through an alarm manager of the event processing unit after completion of the notification confirmation. The method of claim 9, If the user is not logged in as a result of the check in the second step, the failure-related notification information is stored in a log so that the user can search for the corresponding trouble when the user later accesses the server to use the customer network management service. Method for real-time notification of customer network failure data in multi-layer data network.