KR100790471B1 - Method of managing failure status based on the result of protection switching operation in a transmission equipment - Google Patents

Abstract

The present invention relates to a method for managing the status of various failures occurring in the transmission device, and manages the status of the failure detected in the measurement target to a predefined level, and automatically adjusts the failure level according to the success and failure of the protection switching operation. Change and manage it and notify the operating system and other functions of the appropriate message accordingly.

Accordingly, it is possible to identify and transmit the exact failure status of the transmission device so that appropriate measures can be taken according to the failure status and the failure level.

Protection transfer operation, fault condition management

Description

Method of managing failure status based on the result of protection switching operation in a transmission equipment}

1 is a schematic configuration diagram of a transmission device to which the present invention is applied.

2 is a conventional failure state management flowchart.

3 shows a failure state management table structure used in conventional failure management.

4 is a failure state management flowchart according to an embodiment of the present invention.

5 is a diagram illustrating a failure state management table structure according to an embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

101, 201, 401: unit

102, 202, 402: control unit

103, 203, 403: operating system

104: signal input and output terminal

105: communication between devices

The present invention relates to a method for managing a failure state of a transmission device, and more particularly, to a method for automatically changing and reporting a failure state that may occur in various units of a transmission device according to whether a protection switching operation is successful.

Typically, unit failure status management collects failure status for each unit managed by each control unit from each control unit, maintains and maintains a predetermined failure level, and independently manages the failure status and rating regardless of other functions. It is made of a method of notifying the operator and other functions of the failure occurrence report message including.

Since the transmission device has a wide bandwidth and can perform the fastest data transmission, the service quality deterioration caused by the unit failure is serious. Therefore, the service availability status of the transmission device and the accuracy of the failure status management for the unit are important, and the importance of the failure recovery function is increasing to improve service reliability.

In the event of a fatal unit failure, normal service is performed by performing protection switching operation to recover the service, but in the case of failure management, the operator and other functions can manage the failure status of service failure due to the predefined failure level. By passing on to the network, the service state of the transmitting device and the unit failure state can be mistaken, which can lead to a serious situation by taking wrong measures.

Therefore, the correct failure grade management and notification function according to the correct definition of the unit failure status and the situation can be correctly communicated and analyzed to prevent the future malfunction of the unit and take appropriate preventive and repair measures. This critical and accurate fault status information can be used as a measure of the value of the system.

Accordingly, an object of the present invention is to propose a method for automatically changing and notifying a failure state that may occur in a unit depending on whether the protection switching operation is successful, and thus a unit failure state mismatch that may occur in the conventional failure state management method as described above. And the problem of the corresponding measures to solve the problem.

As described above, it is an object of the present invention to apply a method for managing a unit failure state according to a failure of a successful protection transfer so that an operator can take appropriate measures.

In order to achieve the above object, the failure state management method of the transmission apparatus according to the present invention applies a method for automatically selecting a failure level of a failure state generated by collecting protection transfer success failure information from a protection transfer function in a failure state management function. .

Specifically, a failure state management method of a transmission device according to an aspect of the present invention, a) the control unit requesting the failure state value to the unit it manages, b) receiving the failure state value from the unit Maintaining; c) performing a protection switching operation to recover a service in the event of a failure of the unit; and d) determining whether the protection switching operation is successful by collecting result information on the performed protection switching. And e) selecting a failure level for the failure state value according to the determination result, and f) reporting the selected failure level to an operation terminal.

Preferably, in step e), when the protection switching operation is determined to be successful, the failure level for the failure state value is selected as the serviceable failure level, and when the protection switching operation is determined to be failure, the failure state is determined. Select the failure class for the value as the out of service failure class.

Preferably, the failure status value is stored and maintained in a failure status management table, and the failure status management table includes a serial number of a unit managed by the control unit, a unit name for identifying a unit, and a failure value of each unit. Fault monitoring point indicating, fault status value for the fault monitoring point, protection switching success failure rating indicating that service is successful and protection switching operation successful, and protection switching failure failure rating item indicating that service is unavailable because protection switching operation failed. It includes.

Hereinafter, unit failure state management of a transmission apparatus according to the present invention will be described with reference to the drawings.

1 is a schematic configuration diagram of a transmission device to which the present invention is applied. As shown, the transmission device 100 includes a plurality of units 101 having optical input / output terminals 104 for processing optical input / output, a control unit 102 that is an active device for controlling the plurality of units 101, Communication line 105 between the device interior for connecting between the unit 101 and the control unit 102, and an operating terminal 103 used for communicating with the operator and the device outside.

The unit 101, which is a core part of the transmission device, is a passive device having only minimal control functions for high-speed data processing. The unit 101 includes a register for detecting the state of the unit and can transmit the state value of the unit to the control unit 102. have. The control unit 102 reads and monitors the state value of the unit managed by the user at regular intervals, and performs a control function for the state transition when the state value changes.

2 is a conventional failure state management flowchart.

The control unit 202 transmits a failure state value request to the unit 201 that it manages (212), whenever the periodic failure monitoring timer operates periodically (211), and the failure state value from the unit 201. Receive and maintain (213). When a failure occurs, the transmission device recovers the service by performing the protection switching operation (214), and transmits the protection switching operation result according to the operation terminal (203) (215).

On the other hand, the fault status value is managed in a predefined class for a predetermined time during which the fault status maintenance timer is operating (216). The control unit 202 transmits a failure grade and an occurrence report based on the failure grade to the operation terminal 203 when the time determined by the failure state maintenance timer is exceeded (218).

In the conventional failure state management method as described above, if the protection switching operation is successful, the service is delivered to the operation terminal with a failure level of the service failure even though the service recovery succeeds, and the operator misidentifies the service and unit status of the transmission device and accordingly There is a possibility of causing wrong action.

3 illustrates a failure state management table structure used for failure state management in conventional failure management. As shown, the failure status management data includes a sequence number 301 indicating a serial number of a unit managed by a control unit, a unit name 302 for distinguishing units, a failure monitoring point 303 indicating a failure value of each unit, A failure status value 304 for each failure watchpoint and a failure class 305 that represents the failure severity for each previously defined failure watchpoint 303.

4 is a flowchart illustrating a failure state management according to an embodiment of the present invention. As shown, the control unit 402 sends a fault status value request to the unit 401 it manages 412 whenever the fault watchdog timer is running 411 periodically, and from the unit 401 a fault. Receive and maintain a state value (413). If a failure occurs, the transmission device recovers the service by performing a protection switching operation (414), and accordingly transfers the protection switching operation result to the operation terminal 403 (415).

Meanwhile, according to the present invention, the success / failure information of the protection switching operation is collected to determine whether the protection switching operation is successful (417), and when the protection switching operation is successful, the failure level of the failure state value can be serviced. If the protection transfer operation fails, the failure level is selected as the non-service failure level (419). The control unit 402 transmits (420) the selected failure level and occurrence report to the operating terminal 403.

5 is a diagram illustrating a failure state management table structure according to an embodiment of the present invention.

According to the present invention, the fault management data includes a sequence number 501 indicating a serial number of a unit managed by a control unit, a unit name 502 for identifying a unit, a fault monitoring point 503 indicating a fault value of each unit, and the like. Fault status value 504 for the failure watchpoint, a protection transfer success failure grade 505 indicating serviceability if the protection transfer operation is successful, and a protection transfer failure failure rating indicating a service outage because the protection transfer operation failed. 506).

The above-described method for managing a unit failure state of a transmission device improves the accuracy of resolving and analyzing a problem of misidentifying a service state of a transmission device and a failure state of a unit, compared to the conventional unit failure state management method, thereby improving proper accuracy and corrective action. Can be taken.

Claims (3)

A plurality of units for processing the light input and output, one or more control units for requesting and maintaining a failure state value of the plurality of units, and an operation terminal for receiving failure grade information when a failure occurs in the control unit, In the failure state management method in a transmission device performing a protection switching operation when one of the plurality of units has a failure, the method, Determining whether the protection switching operation is successful by collecting result information of the performed protection switching operation; If it is determined that the protection switching operation is successful, the failure level of the failure state value is selected as the serviceable failure level, and if the protection switching operation is determined to be failure, the failure level of the failure state value is serviced. Selecting a disability class of impossibility, Reporting the selected failure level to an operation terminal; Failure state management method of the transmission device comprising a. delete The method of claim 1, wherein the failure state value is stored and maintained in a failure state management table, and the failure state management table includes a serial number of a unit managed by the control unit, a unit name for identifying a unit, and a name of each unit. Failure monitoring point indicating a failure value, failure status value for the failure monitoring point, protection switching success indicating that the service is successful because the protection switching operation is successful, protection switching failure indicating that the service is unavailable due to the failure level and the protection switching operation failing. A method for managing a fault condition of a transmitting device that includes a fault rating entry.

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