KR19990079110A - Fault Management Method in Circuit Distribution Device Management System - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a failure management method in a line distribution device management system.

2. The technical problem to be solved by the invention

The present invention, in the line distribution device management system to accommodate the operating devices in a centralized manner to monitor and control in real time, and in conjunction with the existing network management system, real-time alarm monitoring, graphical status display, and slip management under the same line management system It aims to provide a fault management method to enhance the efficiency of network management tasks by automating the fault task.

3. Summary of Solution to Invention

The present invention, the first step of collecting and analyzing the alarm generated in the operating device in real time in the centralized center, the contents of the database, and displays the failure situation in real time; A second step of reporting the centralized alerts from the central center to the central center; And the third center that analyzes the alarm contents reported from the corresponding central center in the central center to identify the failure situation at the whole network level, issue / update / end the trouble slip according to the failure details, and display the status of the network in real time. Including a step.

4. Important uses of the invention

The present invention is used in line distribution device management system and the like.

Description

Fault Management Method in Circuit Distribution Device Management System

The present invention improves the reliability of the network by accommodating the operating devices in a line distribution device management system in a centralized manner to enable rapid fault detection and action by real time monitoring and control, and the same line management in conjunction with the existing network management system. The present invention relates to a failure management method that enhances the efficiency of network management tasks by automating various failure tasks such as real time failure alarm monitoring, graphic status display, ticket issuance and management under the system.

Currently, about 200 digital access crossconnets (DXCs) are being introduced and operated in public networks between stations, and broadband digital transmission access distribution units (WDCS: Wideband DCS), which is an improved DXC device, will be added. Due to be introduced, the demand for DXC devices is increasing every year.

However, the conventional centralized supervisory control system installed and operated in the inter-station transmission network was developed before the introduction of the DXC device. Since there is no accommodating function for the DXC device, the real-time monitoring control and operation maintenance of the DXC device can be performed. There was no.

In addition, the network distribution system management system in the foreign country was able to manage a limited range of devices only for DXC devices, but in the transmission network, various transmission devices such as an optical transmission device, a multiplexing device, and a circuit distribution device are organically connected. Since end-to-end management of the transmission network is not possible in a system that accepts only one type of device, the problem of dualization of operation management has emerged.

In addition, the transmission facility and the line code system must also be written in a separate code required by a specific overseas management system, and because Hangul cannot be processed, there is a big problem in interworking with other transmission network management systems, so that the integrated integrated network management is impossible. there was.

In order to solve the problems described above, the present invention, in the line distribution device management system to accommodate the operating devices in a centralized manner to monitor and control in real time, in real time under the same line management system in conjunction with the existing network management system Its purpose is to provide a fault management method to enhance the efficiency of network management tasks by automating various fault tasks such as alarm monitoring, graphic status display, and document management.

1 is an exemplary view of a circuit distribution apparatus management system to which the present invention is applied.

2 is a diagram illustrating an embodiment of a failure management procedure in a circuit distribution device management system according to the present invention;

3 is a flowchart illustrating an embodiment of a failure management method in a circuit distribution device management system according to the present invention;

4 is a detailed flowchart of the message collection and analysis process in the central center according to the present invention.

5 is a detailed flowchart of the alarm processing in the alarm processing unit according to the present invention.

6 is a detailed flowchart of a graphic context display process in the graphic context display unit according to the present invention;

7 is a detailed flowchart of a document processing process in the document processing unit according to the present invention.

* Explanation of symbols for the main parts of the drawings

10: Central Center 20: Intensive Center

30: operating station

In the present invention for achieving the above object, in the fault management method applied to the circuit distribution device management system, the alarm generated by the operating device in the operating station in real time in the centralized center collecting and analyzing the corresponding contents and database A first step of displaying, in real time, a failure situation of the corresponding concentration center; A second step of reporting the first concentrated alerts to the central center at the corresponding central center; And analyzing the alarm contents reported from the centralized center in the central center to identify the fault situation at the whole network level, issuing / updating / closing fault slips according to the fault content, and real-time fault status and configuration of the network. A third step of displaying a detailed fault condition and the like.

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

1 is an example of a circuit distribution apparatus management system to which the present invention is applied.

Referring to FIG. 1, the circuit distribution device management system centrally receives the operating devices (DXC13, WDCS) installed in the inter-station transmission network, collects and analyzes alarms of each device in real time, and manages and manages the entire network. In order to perform this efficiently, it is built as an independent system with a hierarchical structure.

The circuit distribution device management system having a hierarchical structure is interworked through a packet network (X.25) and an operating station 30 having a plurality of actual DXC13 (31) and WDCS (32) representing the lowest level operating devices. Alerts through multiple local centers (LANs), which are intermediate stages of collecting and analyzing alerts from multiple DXC devices (31,32) and remote local area networks (LANs) from multiple central centers (20) It receives a central center 10 to perform functions such as failure and slip management.

Each DXC device (31,32) in the operating station 30 is connected to the X.25 packet network to be received by the centralized center 20, the centralized center 20 is connected to the central center 10 through a remote LAN do.

The multiple concentration centers 20 connect and receive DXC devices 31 and 32 of the corresponding concentrated area to collect and analyze alarms generated from the DXC devices 31 and 32. At this time, the real-time alerts primarily concentrated in each central center 20 are transmitted to the uppermost central center 10 through the remote LAN.

The central center 10 displays alarms received from the plurality of concentration centers 20 in real time, and performs functions such as trouble management, slip management, and history management. In addition, when the new document is issued, the document is updated, and the document is closed, the document is remotely output to the operating terminal or printer of the corresponding operating station 30, and a control command for each DXC device 31 or 32 is issued if necessary. Here, all input / output messages for the DXC devices 31 and 32 are implemented by a transaction language (TL / 1: Transaction Language 1).

2 is an explanatory diagram for a failure management procedure in the circuit distribution device management system according to the present invention.

The central center 10 includes a comprehensive network situation collection and analysis unit 11, a graphic situation display unit 12, a document processing unit 13, an alarm processing unit 14, and an alarm database 15 including a current alarm. The concentration center 20 includes an alarm database including a message collection and analysis unit 21, a graphic situation display unit 22, an alarm processing unit 23, a history alarm search / statistic unit 24, and a current alarm and a history alarm ( 25).

First, when an alarm occurs in each DXC device (31, 32) accommodated in the packet network (X.25), and transmits a failure-related automatic message to the corresponding central center (20).

Thereafter, the message collection and analysis unit 21 of each concentration center 20 collects and analyzes the automatic messages received from each of the DXC devices 31 and 32, and displays the analyzed contents in the graphic situation display unit 22 and the alarm processing unit ( 23, 202 and 203, and report to central center 10 (204).

At this time, the graphic situation display unit 22 graphically displays the real-time alarm situation for all the DXC devices 31 and 32 of the centralized center 20 according to the failure message received from the message collection and analysis unit 21.

Then, the alarm processing unit 23 inserts / updates / deletes the alarm contents into the current alarm and history alarm database 25 through the analysis of the failure message received from the message collecting and analyzing unit 21. In addition, not only maintains the contents of the current alarm database 25 to always match the current alarm state, but also the alarm history so that the history information search or statistics unit 24 can later retrieve the historical information or calculate the statistics under various conditions. Maintain a history alarm database 25 for management.

Next, the comprehensive network situation collection and analysis unit 11 of the central center 10 receives the alarm contents of the DXC devices 31 and 32 from the message collection and analysis unit 21 of the centralized center 20. Comprehensive network status of the entire headquarters is collected and analyzed, and the analyzed contents are transmitted to the graphic status display unit 12, the slip processing unit 13, and the alarm processing unit 14, respectively (205 to 206).

At this time, the graphical status display unit 12 receives the comprehensive failure information of the network and displays the real-time failure situation for all DXCs 31 and 32 accommodated in the business headquarters in real time.

In addition, the slip processing unit 13 receives a comprehensive breakdown report and processes data or transmits a message to issue a breakdown slip to a remote operation terminal or printer of the corresponding operating station 30 in each case. Maintain a current document database to provide functionality.

The alarm processor 14 receives a comprehensive failure message for the entire business headquarters network and currently manages the failure details in the alarm database 15 so that other client processors can access reliable current alarm contents when necessary. .

Meanwhile, the central center 10 may issue control commands to the DXC devices 31 and 32 when necessary, and such control messages may be generated from the graphic situation display unit 12 to collect the comprehensive network situation and analysis unit 11. And through the message collection analyzer 21 to each DXC device 31, 32 (208 to 210).

3 is a flowchart illustrating an embodiment of a failure management method in a circuit distribution apparatus managing system according to the present invention.

First, when an alarm occurs in each DXC device (31,32) in the operating station 30 (301), and transmits an automatic message to the centralized center 20 (302).

Then, in each concentration center 20 collects and analyzes the alarm generated from the DXC devices 31 and 32 of the operating station 30 in real time through the X.25 packet network (303).

Next, a database of the corresponding contents for the failure management in each centralized center 20, and displays the failure situation of the corresponding centralized center 20 in real time for each centralized center management (304). Here, the alarm database 25 of the concentration center 20 maintains the facility information, the current alarm state, and the history alarm state for the accommodation DXC devices 31 and 32 of the concentration center 20, and the alarm database ( Alarm history saved in 25) is used for alarm history search and statistics creation later.

Subsequently, the centralized alarms are reported to the central center 10 in the centralized center 20 (305).

Lastly, the central center 10 analyzes the alarm contents received from the centralized center 20 to determine the failure situation in terms of the entire network, and issues / updates / closes the trouble slip according to the failure details. In operation 307, the fault status and configuration of the network, a detailed fault status, etc. are displayed. Here, the alarm database 15 in the central center 10 maintains all facility information and current alarm status for each of the DXC devices 31 and 32 accommodated in the plurality of concentration centers 20.

4 is a detailed flowchart illustrating a message collection and analysis process in the concentration center according to the present invention, and illustrates a message collection and analysis procedure in the message collection and analysis unit 21 in the concentration center 20.

The message collection and analysis unit 21 of the centralization center 20 is a daemon processor, and its role can be broadly classified into two types.

One performs a communication function between a plurality of DXC devices 31 and 32 and client processors accommodated in the centralized center 20.

The other performs the parsing function of the transaction language (TL / 1) used by the DXC devices 31 and 32 as the interface language.

Looking at the message collection and analysis procedure in the message collection and analysis unit 21 of the centralized center 20 as follows.

First, the message collection and analysis unit 21 attempts to connect with each DXC device 31, 32 in the operating station 30 (401), which is housed in the server and centralized center 20 of the central center 10. A connection is attempted with other client processors, respectively (402 and 403).

Then, the connection status with each DXC device 31, 32, the central center server, and the client processor is analyzed (404).

As a result of the analysis, if any connection is not made in the connection process (401 to 403), the connection is continuously attempted (401 to 403).

As a result of the analysis, if the message is received from the target port after a successful connection, the message is read (405) and the data is read (405). It is determined whether the message is from a DXC device (31, 32) or from another processor (406). .

As a result of the determination, if the message is from the other processor in the central center 20 or the server of the central center 10, the control command ultimately goes down to the DXC devices 31 and 32, and the control command is transmitted to the corresponding DXCs 31 and 32. (407).

As a result of the determination, if the message is from the DXC devices 31 and 32, the message composed of the transaction language TL / 1 is analyzed and parsed (408 to 411). In this case, the parsing process analyzes a message composed of TL / 1 to generate a token (408), and converts it into a message form that can be understood by other processors through a parsing and semantic analysis process (409,410) (411). ).

After the parsing process 408-411, the type of message received from the DXC device 31, 32 is analyzed (412).

As a result of analysis, if the message is an alarm-related message, the message is transmitted to all client processors and the central center server (413), and if it is a response message to a control command previously issued to a specific DXC device (31, 32), the corresponding control command was issued. After sending the message to the client and the central center server (414), the connection status with each DXC device (31, 32), the central center server, and the client processor is analyzed again (404).

5 is a detailed flowchart of an alarm processing process in the alarm processing unit according to the present invention, and receives alarm messages from the alarm processing units 14 and 23 in the central center 10 and the central center 20. Represents a procedure for current management. Here, the alarm processing unit 14 in the central center 10 has the same function as the alarm processing unit 23 in the concentration center 20. Therefore, the alarm processing unit 23 in the concentration center 20 will be described.

First, the alarm processing unit 23 of the central center 20 is connected to the central center server (if the alarm processing unit 14 of the central center 10 is connected to the central center server) (501), each DXC device After automatically configuring the mounting state for (31,32) (502), a cross-connection state is automatically configured (503) for each DXC device (31,32).

For example, this procedure (501 to 503) automatically configures the operator status and internal cross-connection information for each DXC device (31,32) without the operator's input. To reduce, reliably and efficiently manage. In addition, the present invention is to provide fast and reliable current information when the graphical status display unit 12 or another client processor inquires about the mounting state or the cross-connection state of the DXC devices 31 and 32. .

Then, after building basic information about each DXC device 31, 32, the automatic message received from the DXC device 31, 32 is read (504) and the type of the read automatic message is analyzed (505).

As a result of analysis, if the event message is less important than the alarm message, it is treated as an event (506) and stored in the history alarm database in the alarm database 25 (507), and then again from the DXC devices 31 and 32. The received automatic message is read (504) to analyze the type of read automatic message (505). Here, such event message processing is performed only in each central center 20, and the event message is filtered out of the central center 10 and only an alarm message is transmitted.

As a result of the analysis, if it is an alarm message, the type of alarm is determined (508) and inserted, updated, and deleted in the corresponding alarm database (15, 25) by message type (ie, new, change, and recovery) (509 to 512). In operation 505, the automatic message received from the DXC devices 31 and 32 is read (504) and the type of the read automatic message is analyzed. At this time, the recovered message is stored in the history alert database as it is, only the centralized center 20 maintains the history alert database, the central center 10 maintains only the current alert database.

For example, if a new alarm message is inserted into the alarm database 15, 25 (508), if a change alarm message is updated to the alarm message stored in the alarm database 15, 25 (510), and if the recovery alarm message is an alarm database The alarm message stored in the current alarm database in (15, 25) is deleted and inserted into the history alarm database (511).

FIG. 6 is a detailed flowchart illustrating a graphic situation display process in the graphic situation display unit according to the present invention, which graphically displays an alarm situation in the graphic situation display units 12 and 22 in the central center 10 and the concentration center 20. Indicates a procedure. Here, description will be made mainly on the graphic status display unit 12 in the central center 10.

First, after connecting to the central center server (if the graphical situation display unit 22 in the centralized center 20, connected to the centralized center server) (601), and collects and analyzes the current failure situation (602). An initial failure situation is displayed (603).

Thereafter, in the waiting state for event occurrence, when the event occurs, the type of the generated event is determined (604).

If it is determined that the event type is an alarm message from the DXC devices 31 and 32 (605), the program is configured to determine the type of alarm message (ie, new, change, and recover) and display the alarm status in real time. After adding / update / delete the memory (606 to 608), and displaying the details graphically (609), the type of event generated in the event occurrence waiting state is determined (604).

As a result of the determination, if the control response message for the control command previously issued to the specific DXC device (31,32) is displayed graphically (610), the operator determines the type of event generated in the event waiting state. (604).

As a result of the determination, in the case of the operator's input event, the selected entity is analyzed by the operator (611), and the processing process (612 to 616) is performed according to the analysis result, and then the existence of the event generated in the event occurrence waiting state is determined. (604).

As a result of the analysis, when a specific menu button is selected, processing such as displaying the corresponding contents, displaying a submenu, or displaying detailed details according to the menu is performed (612).

As a result of the analysis, when the mounting diagrams of the specific DXC devices 31 and 32 are selected, the self-mounting details of the DXC devices 31 and 32 and the corresponding alarm contents are displayed (613).

As a result of the analysis, when a specific shelf is selected, the detailed unit configuration state of the shelf is displayed (614).

As a result of analysis, when the selected entity is a specific unit, the current detailed alarm history and the history alarm generated in the unit are displayed (615).

As a result of the analysis, in the case of a specific control request for the DXC devices 31 and 32, a corresponding control message is generated and transmitted to the DXC devices 31 and 32 (616).

7 is a detailed flowchart of a document processing process in the document processing unit according to the present invention.

First, it connects to the document server in charge of the overall document management for the whole country's transmission network (701), collects and analyzes the fault information to transmit the current fault condition to the document server (702), and analyzes the analyzed content. The document is converted into a message that the document server can understand and the failure message is transmitted to the document server (703).

Then, the result of the event occurrence (that is, waiting for a change or failure message from the slip server) is analyzed in real time until there is an event occurrence.

As a result of the analysis, the type of the generated event is determined (705).

As a result of the determination, in the case of an event from the document server, after processing the request of the document server and handing over the result to the document server (706), it is analyzed in real time whether an event occurs again (704).

As a result of the determination, in the event of a failure, the alarm type is checked (707).

As a result of the inspection, when a new alarm occurs, a new failure information message is generated (708), a record is added to the corresponding failure document database (709), and after the message is transmitted to the document server (714), an event occurrence is generated again. It is analyzed in real time (704).

As a result of the inspection, when any change occurs in the existing failure, an update message for the corresponding failure information is generated (710), the corresponding record is found in the failure document database and updated (711), and the corresponding message is transmitted to the document server. Later (714), it is analyzed in real time whether there is an event occurrence (704).

As a result of the inspection, when the existing failure is restored, a recovery message for the corresponding failure information is generated (712), the record is updated or deleted in the failure document database (713), and the message is transmitted to the document server (714). In step 704, an event occurrence is analyzed in real time.

The fault document database managed as described above is used later for document search or statistical function.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains, and the above-described embodiments and accompanying It is not limited to the drawing.

The present invention as described above, by adopting the centralized method of DXC devices of the national inter-national transmission network in the unit of business headquarters in real-time monitoring and control to improve the reliability of the network by enabling quick fault identification and measures, alarm history inquiry and statistics It is effective to increase the efficiency of network management tasks by automating various fault tasks such as function and fault slip management function.

Claims (10)

In the failure management method applied to the circuit distribution device management system, A first step of collecting and analyzing alarms generated by an operation device in an operating station in a corresponding concentration center in real time to make a database of the contents, and displaying a failure state of the concentration center in real time; A second step of reporting the first concentrated alerts to the central center at the corresponding central center; And The central center analyzes the alarm contents reported from the centralized center to identify the fault situation at the whole network level, and issues / updates / closes the fault slip according to the fault content, and the fault condition and configuration state of the network in real time, Third step to display detailed failure status, etc. Failure management method comprising a. The method of claim 1, The first step is, A fourth step of sending an automatic message relating to a failure to the corresponding concentration center by generating an alarm in the operating device in the operating station; A fifth step of collecting and analyzing an alarm generated from the operation apparatus in real time through the packet network in a message collecting and analyzing unit of the centralized center; And The information analyzed by the collection and analysis unit of the corresponding center is transmitted to the alarm processing unit and the graphic status display unit of the corresponding center, and the corresponding data is databased for fault management, and the centralized center is managed for each central center. Sixth step to display failure situation in real time Failure management method comprising a. The method according to claim 1 or 2, The third step, A seventh step of collecting and analyzing a comprehensive network situation by receiving an alarm content of the operating device from the message collection and analysis unit of the corresponding center in the comprehensive network situation collection and analysis unit of the central center; And The contents analyzed by the comprehensive network situation collection and analysis unit are transmitted to the graphic situation display unit, the document processing unit, and the alarm processing unit in the central center to determine the failure situation at the whole network level, and to issue / update the fault slip according to the content of the failure. Eighth step of closing, displaying in real time network failure status, configuration status, detailed failure status, etc., and generating control commands for the operating device if necessary Failure management method comprising a. The method of claim 3, wherein The process of collecting and analyzing messages in the corresponding concentration center, A ninth step of accessing the operating device from the message collecting and analyzing unit of the corresponding center, and connecting to the server of the central center and other processors in the central center, respectively; A tenth step of analyzing a connection state with the operation device, the server of the central center, and the other processor; An eleventh step of continuously attempting to connect if at least one of the operating device, the server of the central center, and the other processor cannot be connected as a result of the analysis of the tenth step; A twelfth step of determining whether the message is from the operating device or the other processor by reading data when a message is input to the corresponding port by waiting for a message for a successful connection; A thirteenth step of transmitting a control command to the operation apparatus when the determination result of the twelfth step is a message from the other processor or the server in the central center; A fourteenth step of analyzing a type of a message received from the operating device after parsing by analyzing a control command if the message is from the operating device as a result of the determination of the thirteenth step; And As a result of the analysis of step 14, if the message is an alarm-related message, the message is transmitted to all processors and the server of the central center. If the message is a response to the control command, the message is sent to the processor and the server of the central center. After transmitting the message, the fifteenth step is passed to the tenth step. Failure management method comprising a. The method of claim 4, wherein The parsing process of the fourteenth step, Analyzing the control command to generate a token; And The seventeenth step of parsing and semantic analysis to convert the message into a message form that can be understood by the other processor Failure management method comprising a. The method of claim 3, wherein The alarm processing in the alarm processing unit of the central center and the centralized center, After the alarm processing unit of the centralized center connects to the server of the centralized center or the alarm processing unit of the central center connects to the server of the central center, and automatically configures a mounting state for the operating apparatus. A ninth step of automatically configuring a cross-connection state for the device; A tenth step of analyzing the type of the read automatic message by reading the automatic message received from the operating apparatus; An eleventh step of proceeding to the tenth step after treating the event message as an event message in the tenth step and storing it in a history alert database in the alarm database; A twelfth step of determining a type of an alarm if the analysis result of the tenth step is an alarm message; And As a result of the determination of the twelfth step, after inserting, updating, and deleting the corresponding alarm database according to the message type (ie, new, change, and recovery), the thirteenth step is passed to the tenth step. Failure management method comprising a. The method of claim 3, wherein The graphic situation display process in the graphic situation display unit of the central center and the centralized center may include: The graphical situation display unit of the central center connects to the server of the central center, or the graphical situation display unit of the central center connects to the server of the centralized center, and collects and analyzes the current failure situation to generate an initial failure situation. A ninth step of displaying; In an event generation standby state, determining a type of the generated event when the event occurs; As a result of the determination in the tenth step, if the alarm message is from the operating device, each memory of the program is added / updated for displaying and processing the alarm status in real time according to the type of alarm message (ie, new, changed, and restored). An eleventh step of deleting / deleting and graphically displaying the details, and proceeding to the tenth step; A twelfth step of moving to the tenth step after displaying the details graphically if the control response message for the control command previously issued by the operator to the operating device is determined as the tenth step; A thirteenth step of analyzing the entity selected by the operator in the case of the operator's input event as a result of the determination in the tenth step; A fourteenth step of moving to the tenth step after displaying a corresponding content, displaying a submenu, or displaying a detailed description according to a menu when a specific menu button is selected as the analysis result of the thirteenth step; A fifteenth step of passing to the tenth step after displaying the self-mounting details of the operating device and the corresponding alarm content when the analysis result of the thirteenth step is selected; A sixteenth step of moving to the tenth step after displaying the detailed unit configuration state of the self when the specific self is selected as the analysis result of the thirteenth step; A seventeenth step of moving to the tenth step after displaying the detailed alarm history and the history alarm generated in the unit when the selected entity is a specific unit as a result of the analysis of the thirteenth step; And 18th step of proceeding to the tenth step after generating the control command and transmitting the control command to the operating device when the analysis result of the thirteenth step is a specific control request for the operating device; Failure management method comprising a. The method of claim 3, wherein Document processing in the document processing unit of the central center, A ninth step of connecting to a slip server in charge of overall slip management for a transmission network between all stations; A tenth step of collecting and analyzing the failure information to transmit a current failure state to the document server, converting the analyzed content into a message that the document server can understand, and transmitting the failure message to the document server; An eleventh step of determining an event occurrence result in real time; A twelfth step of analyzing an event type with respect to the generated event as a result of the determination of the eleventh step; A thirteenth step of processing the corresponding request of the document server and handing over the result to the document server if the event from the document server is an event from the twelfth step; A fourteenth step of checking an alarm type when the analysis result of the twelfth step is an event for a failure; As a result of the inspection of the fourteenth step, when a new alarm occurs, a new failure information message is generated, a record is added to the corresponding failure slip database, the message is transmitted to the slip server, and then the procedure goes to the eleventh step. A fifteenth step; As a result of the inspection of the fourteenth step, when a change occurs in an existing failure, an update message for the corresponding failure information is generated, the corresponding record is found in the fault slip database, the contents are updated, and the corresponding message is transmitted to the slip server. After that, a sixteenth step of proceeding to the eleventh step; And After the inspection result of step 14, when the existing failure is recovered, after generating a recovery message for the failure information, updating or deleting the record in the failure document database, and transmits the message to the document server, 17th step to the eleventh step Failure management method comprising a. The method of claim 3, wherein Each operation device, And a digital transmission access distribution device (DXC) or a wideband digital transmission connection distribution device (WDCS). The method of claim 3, wherein The control command, And a transaction language (TL / 1: Transaction Language 1) for all inputs and outputs for controlling the operating device of the operating station.