KR20000037863A - Method for replacing error transmission line with detour line for service of member line in communication network management system - Google Patents

Abstract

PURPOSE: A method for replacing an error transmission line with a detour transmission line in a communication network management system is provided to reduce an error time on an exclusive service line, and make the information of a transmission line coincident in real time, by searching the detour transmission line with minimum cost and controlling a line configuration of a digital cross-connect system. CONSTITUTION: A program for replacing the error transmission line therewith is executed(301). The error transmission line and trouble information on the digital cross-connect system(DCS) are searched(302). If the DCS with a trouble exists(303), the information on a member of the DCS therewith is searched(304). If it is determined that the replacement of the detour is to be performed(305), sections of the line, capable of being replaced therewith and having an equal section and size to the section thereto, are extracted(306-309), and an optimum detour path of the extracted sections which has a minimum cost is selected in order to resume the service for the error transmission line (310-312).

Description

A Disaster Transfer Path Detour Method for Subscriber Line Services in Telecommunication Network Management Systems

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for bypassing a transmission path for a fault transmission line for a subscriber line service in a communication network management system, and a computer readable recording medium recording a program for realizing the same.

Conventional subscriber line service can not share the DCS information installed at a long distance in the country by managing the transmission channel and channel information of the digital cross-connect system (hereinafter referred to as "DCS"), respectively, In case of occurrence, it is very difficult to set the bypass section and identify the free line. As a method for resuming the subscriber service in case of transmission path failure in DCS section, the failure information displayed on the terminal connected to the DCS device is analyzed to recognize the failure section, the channel information of the failed DCS is extracted, and the subscriber affected by the failure. A list must be prepared.

Also, in order to select the bypass section based on the subscriber information, the DCS manager of the other region connected to the disabled DCS checks the normality of the DCS information and transmission path of the region, and, in consultation with the relevant DCS operators, Termination / connection shall be performed and subscriber information generated as a result of circuit bypass should be stored and managed for each DCS operator.

Therefore, conventionally, the DCS information is distributed and managed, so it is impossible to grasp the overall network configuration situation, and in particular, in case of a failure in which subscriber service is not possible, it takes a lot of time to identify a subscriber who has a failure and has a minimum cost of bypassing a failure section. Since it takes a lot of time to select the path and control the DCS manually for the selected path, there is a problem that it is impossible to provide the service of the dedicated line during the time required for repairing the obstacle or the bypass transfer time of the faulty transmission line.

Therefore, the present invention devised to solve the above problems, the failure of the apparatus and transmission path constituting the network in a dedicated communication network composed of digital circuit distribution device (DCS) to reduce the down time of subscriber line service The purpose of the present invention is to provide a method for bypassing a transmission path of a fault transmission line that monitors whether a subscriber line is interrupted to a normal spare line and monitors whether or not a service has occurred, and a computer-readable recording medium recording a program for realizing it. .

1 is an exemplary configuration diagram of a digital dedicated communication network management system to which the present invention is applied.

2 is an explanatory diagram of alarm recognition and bypass switching in a digital-only communication network management system to which the present invention is applied;

3 is a flow diagram of an embodiment of a method for bypassing a faulty transmission path for a subscriber line service according to the present invention;

* Explanation of symbols for the main parts of the drawings

101: digital line distribution device 102: single station device

103: X.25 network 104: Central control unit

105: database 106: operating terminal device

The present invention for achieving the above object, in the transmission path bypass switching method for the subscriber line service applied to the communication network management system, receiving the digital line distribution device facility and the transmission path failure situation to receive subscriber information Extracting the first step; And a second step of extracting the same section and the same sized transmission path section that can replace the failure transmission section, selecting an optimal bypass path having the minimum cost of the extracted bypass section, and resuming the disabled line service.

In addition, the present invention provides a communication network management system having a large-capacity processor, comprising: a first function of receiving a digital line distribution device facility and a transmission line failure situation and extracting subscriber information from which service is suspended; And extracting the same section and the same sized transmission path section that can replace the failure transmission section, and selecting the optimal bypass path having the minimum cost of the extracted bypass section to realize the second function of resuming the fault line service. A computer readable recording medium having recorded a program is provided.

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

Fig. 1 is an exemplary configuration diagram of a digital dedicated communication network management system to which the present invention is applied, and includes a digital line distribution device 101, a terminal station 102, an X.25 communication network 103, a central control unit 104, and a database ( 105 and an operating terminal device 106.

As shown in the figure, in order to provide a dedicated line service to a subscriber, a DCS, which is a digital line distribution device 101 having a digital line connection function, is installed in a communication network, and a dedicated communication network is used by using transmission paths connecting the respective DCSs. The terminal 102 is connected to the subscriber service line and performs the gateway function of the subscriber line and the DCS network. The dedicated communication network management system is composed of a host computer 104 for managing DCS and end station devices, and a database 105 for storing facility and subscriber information. Operators perform various functions of the system using the terminal device 106. do. In a dedicated network management system that is computerized a series of processes to construct a dedicated line that guarantees a constant speed for the subscriber section, and establishes a line that can always be used, it maximizes the subscriber's dedicated line service time by searching for and bypassing the bypass transmission line in the event of circuit configuration and failure Plays a role in ensuring

2 is an explanatory diagram of alarm recognition and bypass switching in a digital-only communication network management system to which the present invention is applied.

As shown in the figure, a series of processes of bypass switching from recognition of alarm data recognized by the DCS itself will be described. The communication function unit 202 receiving the response of each DCS 201 receives the fault information of the DCS 201 and transmits the fault information to the alarm analysis function unit 203 which analyzes the received result. In the alarm analysis, if the received response is found to be a failure, it is transmitted to the subscriber management function unit 204 which creates a list of subscribers belonging to the failure section by referring to the database 205 already established.

The bypass switching function unit 206 selects a path of the least cost that can bypass the subscriber line section for each subscriber line created as a result of the alarm analysis, and requests the DCS 201 for circuit connection. As a result of the DCS line configuration, if the bypass path of the failed line is successfully connected, the result is stored in the database and the subscriber is notified of the resumption of service. This series of tasks are performed using the operator terminal device 207 installed to manage the DCS 201.

3 is a flowchart illustrating an embodiment of a method for bypassing a transmission path of a failure transmission path for a subscriber line service according to the present invention.

As shown in the figure, the bypass switching program is operated (301), the fault transmission path and DCS facility failure information is retrieved (302), and the presence of the disabled facility is found (303) if the disabled facility exists, the service failed subscriber. The information is retrieved (304).

Thereafter, it is determined whether to perform a bypass transfer (305), if the bypass transfer is not performed, waiting for failure recovery (313). If it is determined whether the extracted same section is transferred (307), a search is performed via the same section, and if the extracted same section is not transferred, a search is performed via another section (309).

Subsequently, the DCS circuit control command is transmitted to the DCS to receive a result from the DCS (310), it is determined whether to resume the subscriber service (311), and if the subscriber service is not resumed, the bypass transmission path extraction process is repeated, and the subscriber When the service resumes, the subscriber facility information is updated (312).

For reference, when an operator runs a program in the operation terminal device to perform the bypass switching task, the operator accesses a database by itself and provides a control screen for the operator. In the process of searching for information on the occurrence of the failure, the time of occurrence of the failure and the cause of the failure are displayed on the operator screen. The operator checks the fault history to determine whether the switchover is bypassed and sends a trouble repair request if the cause of the fault is removed quickly. When the bypass switching is determined, the subscriber line information in operation is extracted and the switching line is ranked according to the priority of each subscriber line. The operator decides whether to switch the bypass route to the bypass route by extracting the bypass route section information of each subscriber having the minimum cost based on the already established transmission line and fault information. Search for transmission path and channel information belonging to the determined section. DCS control commands are generated and sent to the DCS for actual circuit configuration, and the changed subscriber and facility information is stored in the database.

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.

As described above, the present invention provides a database of a circuit distribution apparatus of a dedicated communication network, and when a failure of a service of a dedicated line subscriber is interrupted in a dedicated communication network management system that centrally manages a control line, a failure and associated subscriber line management is performed. It is easy to search the normal bypass transmission path with the lowest cost, and control the circuit configuration of the circuit distribution device to match the transmission path information of the dedicated communication network management system in real time, and minimize the service downtime of the dedicated line subscriber. It can be effective.

Claims (3)

Claims [1] A method for bypassing a faulty transmission path for a subscriber line service applied to a network management system. A first step of extracting subscriber information for which service is stopped by receiving a digital circuit distribution apparatus facility and transmission path failure situation; And The second step of resuming the fault line service by extracting the same section and the same-scale transmission path section that can replace the fault transmission section, selecting the optimal bypass path having the minimum cost of the extracted bypass section Disruptive transmission line bypass switching method for subscriber line service including The method of claim 1, The second step, Extract the same section and the same sized transmission path section to replace the failure transmission section for resuming the service of the faulty line, and extract the transmission path via another path if there is no normal transmission path within the same section. Three steps; A fourth step of selecting an optimal bypass path having the extracted transmission path state of the bypass section and the minimum cost of the transmission path section; The fifth step of canceling the circuit configuration of the digital line distribution device in the failed section, transmitting the digital line distribution device control command to the digital line distribution device for the digital line distribution device line connection in the bypass section, and interpreting the processing result. ; And The sixth step of changing the channel information of the subscriber resulting from circuit termination and connection of the fault and bypass sections to match the channel information with the digital circuit distribution device. Disaster transmission path bypass switching method for a subscriber line service comprising a. In a network management system having a large processor, A first function of receiving the digital circuit distribution apparatus facility and transmission path failure situation and extracting subscriber information from which the service is suspended; And The second function of extracting the same section and the same size of the transmission path section that can replace the failure transmission section, selecting the optimal bypass path having the minimum cost of the extracted bypass section to resume the failure line service A computer-readable recording medium having recorded thereon a program for realizing this.