KR101048849B1 - Wavelength Division Multiplexing Equipment Management System and Method - Google Patents

Abstract

The method for managing wavelength division multiplexing equipment according to an embodiment of the present invention receives an optical signal from each of a plurality of wavelength division multiplexing equipment, extracts and stores optical level data. Then, it is determined whether the light level data is to be monitored, and when the light level data is to be monitored, a check threshold range is set. The level of the light level data is determined by comparing the light level data with the check threshold range, and the ticket issuing information necessary for generating the light level management ticket is retrieved. Then, the light level management ticket is issued using the class and ticket issuing information.

Wavelength division multiplexing equipment, optical signal, optical level data, optical level management ticket, inspection threshold range, device threshold range

Description

Wavelength Division Multiplexing Equipment Management System and Method {SYSTEM AND METHOD for GENERATING OPTICAL LEVEL TICKET}

The present invention relates to a system and method for managing wavelength division multiplexing equipment, and more particularly, to a system and method for converting and managing an optical signal level of a wavelength division multiplexing (WDM) device into a ticket form. .

Network traffic is increasing rapidly for the smooth communication of large-capacity multimedia data. Accordingly, large communication providers continuously introduce and use wavelength division multiplexing (WDM) equipment that can combine and transmit different wavelengths to each optical channel. have.

For stable operation of such WDM equipment in a communication network, it is necessary to maintain a constant level of optical signal levels and to maintain a stable state. Currently, the management of optical signal level mainly depends on self-calibration by hardware equipment implemented by manufacturers of wavelength division multiplexing (WDM) equipment. Abnormal changes in the optical signal level due to distribution, etc., are difficult to manage.

In order to solve this problem, the optical signal level was managed by monitoring the numerical change of the software or simple optical signal level separately from the failure and performance management of WDM equipment. Is also less efficient in terms of quality control.

On the other hand, conventionally, equipment of a communication network, such as wavelength division multiplexing (WDM), was managed by a trouble ticket method. In this case, a trouble ticket stores information such as a failure history output from the communication equipment, a failure confirmation message, a construction measure, and an operator's measure. As such, in the case of managing the equipment in the communication network through a trouble ticket method, the quality of the communication network can be improved by collectively managing the measures before each occurrence and the measures after the occurrence of the failure.

Accordingly, there is a need for a technology capable of managing optical signal levels by unifying failure and performance management of wavelength division multiplexing (WDM) equipment.

The technical problem to be achieved by the present invention relates to a system and method that can be managed by converting the optical signal level into a ticket form by unifying the failure and performance management of wavelength division multiplexing (WDM) equipment.

In the system for managing a plurality of wavelength division multiplexing equipment according to a feature of the present invention for achieving the above object,

An optical level monitoring unit for receiving an optical signal transmitted from each of the plurality of wavelength division multiplexing devices, extracting and storing optical level data from the optical signal, and determining whether the optical level data is to be monitored; and the optical And a light level ticket generation unit for generating a light level management ticket by comparing the light level data with a check threshold range to determine the grade of the light level data when the light level data is the monitoring target.

In addition, in the method for managing a plurality of wavelength division multiplexing equipment according to another aspect of the present invention,

Receiving an optical signal from each of the plurality of wavelength division multiplexing devices, extracting and storing optical level data, determining whether the optical level data is to be monitored, and if the optical level data is to be monitored, a check threshold range Setting a value, comparing the light level data with the inspection threshold range, determining a grade of the light level data, retrieving ticket issuing information necessary for generating a light level management ticket, and the rank and the ticket issuing information. Issuing a light level management ticket.

In addition, in the method for managing a plurality of wavelength division multiplexing equipment according to another aspect of the present invention,

Receiving an optical signal from each of the plurality of wavelength division multiplexing devices, extracting and storing optical level data, determining whether the optical level data is to be monitored, and if the optical level data is to be monitored, a check threshold range Setting a value, comparing the light level data with the inspection threshold range, determining a grade of the light level data, retrieving ticket issuing information necessary for generating a light level management ticket, and the rank and the ticket issuing information. Issuing a light level management ticket.

According to the embodiment of the present invention, since the optical signal level is managed in the form of a ticket, the optical signal level can be managed by unifying the failure and performance management of the wavelength division multiplexing (WDM) equipment. This can reduce the manpower and cost of separately managing the optical signal level.

In addition, according to an embodiment of the present invention, since the centralized management of each of the equipment as well as the communication network in network management is possible, it is possible to have an efficient precautionary system to efficiently manage the network quality.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

1 is a view schematically showing a network management system according to an embodiment of the present invention.

As shown in FIG. 1, the network management system 1 includes wavelength division multiplexing equipment (hereinafter referred to as “WDM”) 100_1-100_N and a WDM equipment management system 200.

The WDM equipment 100_1-100_N combines and transmits optical signals having different wavelengths to respective optical channels. That is, each of the WDM devices 100_1-100_N generates and transmits an optical signal for each of a plurality of generation points included in the WDM unit.

The WDM equipment management system 200 includes a device access server 210, a failure management device 220, and an optical signal management device 230.

The device access server 210 receives the optical signal transmitted from the WDM equipment 100_1-100_N and transmits the optical signal to the failure management apparatus 220 and the optical signal management apparatus 230.

The failure management apparatus 220 receives an optical signal transmitted from the device access server 210, and extracts and analyzes the failure related information of the WDM equipment 100_1-100_N to generate a failure management ticket. Since a process of generating a failure management ticket in the failure management apparatus 220 according to an embodiment of the present invention is a general content, a detailed description thereof will be omitted.

The optical signal management device 230 receives an optical signal transmitted from the device connection server 210 and extracts optical level data from the optical signal. When the light level data is a monitoring target, the optical signal management device 230 determines the light level class to generate a light level management ticket. In this case, the optical level data is generated and transmitted for each occurrence of each WDM device 100_1-100_N, and includes an identifier for identifying the occurrence of the corresponding device. The optical level management ticket according to an embodiment of the present invention is a document indicating management details, such as trouble information and trouble actions, such as a trouble ticket, which is generally used, and a class set by the optical level data and The ticket generation information necessary for issuing a light level management ticket is generated. Here, the ticket generation information may include the operator's action according to the level of the light level data, the urgency of the action and the failure confirmation message.

 Hereinafter, an optical signal management apparatus according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4.

2 is a schematic diagram illustrating an optical signal management apparatus according to an exemplary embodiment of the present invention.

As shown in FIG. 2, the optical signal management apparatus 230 according to the exemplary embodiment of the present invention includes an optical level monitor 231 and an optical level ticket generator 232.

The optical signal monitoring unit 231 includes an optical level data collecting unit 2311, an optical level data storing unit 2312, and an optical level data determining unit 2313.

The optical level data collector 2311 receives an optical signal transmitted from the device connection server 210 and determines whether the optical signal is optical level data including level information. The light level data collecting unit 2311 extracts the light level data and stores the light level data in the light level data storage unit 2312.

The optical level data storage unit 2312 receives and stores the optical level data from the optical level data collecting unit 2311.

The light level data determination unit 2313 reads the light level data stored in the light level data storage unit 2312 in a periodic polling manner. The light level data determination unit 2313 determines whether the light level data periodically transmitted is data to be monitored. At this time, if it is determined that the abnormality of the light level data is caused by an artificial thing such as a work such as a line construction or a unit replacement of the device, the light level data determination unit 2313 determines that the light level data is not the data to be monitored, and thus the light level management ticket. To prevent this from being generated. On the other hand, when the light level data is the data to be monitored, the light level data determination unit 2313 transmits a ticket generation request signal and light level data requesting the generation of the light level management ticket to the light level ticket generation unit 232. .

The light level ticket generation unit 232 includes a light level ticket issuing unit 2321 and a light level ticket storage unit 2322.

The optical level ticket issuing unit 2321 sets the check threshold range when the ticket generation request signal and the optical level data are transmitted from the optical level data determination unit 2313 of the optical level monitoring unit 231. The check threshold range according to the embodiment of the present invention may be set differently according to a user as a reference value for generating the light level ticket, and has a range between the check threshold upper limit value and the check threshold lower limit value. That is, the optical level ticket issuing unit 2321 sets the check threshold range so that the optical level data can be monitored by the user before reaching the device threshold range set in the WDM equipment 100_1-100_N. At this time, the device threshold range has a range between the device threshold upper limit value and the device threshold lower limit value.

Specifically, the optical level ticket issuing unit 2321 sets a check threshold upper limit value by subtracting a user set error value from the device threshold upper limit value. Then, the optical level ticket issuing unit 2321 sets a check threshold upper limit value by adding a user set error value to the device threshold lower limit value, and is expressed as in Equation (1). In this case, the user setting error value according to the embodiment of the present invention is changeable according to the user, and is set higher as the importance of management increases, and is set to 0 when monitoring is to be performed only at the level of the device threshold range.

Check Threshold Upper = Device Threshold Upper-Error

Check Threshold Lower = Device Threshold Lower-Error

The optical level ticket issuing unit 2321 compares the optical level data with the check threshold range to determine whether the light level data is included in the check threshold range. When the light level data is not included in the check threshold range, the light level ticket issuing unit 2321 determines the grade of the light level data and issues a light level management ticket.

Specifically, the level of the light level data is largely set in four stages of the first critical, the second major, the third minor and the fourth warning, so that the optical level ticket issuing unit ( 2321 determines in which class the light level data is included. At this time, the grade of the light level data is set to the first critical (critical), the second alarm (major), the third alarm (minor) and the fourth warning (warning) in the order of urgency of the action. The optical level ticket issuing unit 2321 retrieves ticket issuing information such as an operator's action items, an urgent action, and a failure confirmation message according to each level required for generating the optical level management ticket. The optical level ticket issuing unit 2321 determines whether the optical level management ticket has been previously issued to the occurrence point among the occurrence points of the WDM equipment 100_1-100_N. If the light level management ticket has not been previously issued for the equipment, the light level ticket issuing unit 2321 issues a new light level management ticket for the equipment. On the other hand, if no ticket has been previously issued for the equipment, the optical level ticket issuing unit 2321 updates the previous optical level management ticket by adding the optical level data to the previous optical level management ticket for the equipment.

The optical level ticket storage unit 2322 stores a list and details of the optical level management ticket generated by the optical level ticket issuing unit 2321. That is, the optical level ticket storage unit 2322 accumulates and stores the list and detailed contents of the optical level management ticket and delivers the corresponding contents when the user requests.

FIG. 3 is a flowchart schematically showing a procedure of generating and updating an optical level ticket in the optical signal management apparatus shown in FIG. 2.

As shown in FIG. 3, the optical level data collecting unit 2311 of the optical signal monitoring unit 231 according to an embodiment of the present invention receives the optical signal transmitted from the device connection server 210 to receive the optical level data. The data is extracted and stored in the light level data storage unit 2312 (S300).

The optical level data determination unit 2313 of the optical signal monitoring unit 231 determines whether the optical level data read by the periodic polling method is the data to be monitored (S310). As a result of determination, when the data is not to be monitored, the light level data determination unit 2313 filters the light level management ticket not to be generated since the light level data is not the monitored data (S320).

The optical level ticket issuing unit 2321 sets the check threshold range when the ticket generation request signal and the optical level data are transmitted from the optical level data determination unit 2313 of the optical level monitoring unit 231 (S340). Then, the light level ticket issuing unit 2321 compares the light level data with the check threshold range, and determines whether the light level data is included in the check threshold range (S350).

When the light level data is not included in the check threshold range, the light level ticket issuing unit 2321 determines the level of the light level data, and ticket issuance information necessary for generating the light level management ticket of the equipment, that is, according to each level. Search for information such as an operator's action, an action urgency and a failure confirmation message (S360). Then, the optical level ticket issuing unit 2321 determines whether the optical level management ticket has been previously issued to the occurrence point among the occurrence points of the WDM equipment 100_1-100_N (S370).

If the light level management ticket has not been previously issued for the equipment, the light level ticket issuing unit 2321 issues a new light level management ticket for the equipment by using the class and ticket issuing information (S380). On the other hand, if no ticket was previously issued for the equipment, the optical level ticket issuing unit 2321 updates the previous optical level management ticket by using the class and ticket issuing information in the previous optical level management ticket for the equipment ( S390).

4 is a diagram illustrating an example of generating and updating a light level management ticket by determining a light level grade according to an embodiment of the present invention.

As shown in Fig. 4, the optical level ticket issuing unit 2321 of the optical level ticket generating unit 232 according to the embodiment of the present invention compares the received optical level data with the check threshold range, It is determined whether or not included in the check threshold range (S400, S410).

When the light level data is included in the check threshold range, the light level ticket issuing unit 2321 determines whether the light level data is included in the normal range by periodically extracting the next light level data and comparing it with the check threshold range because the received light level data is normal. do. On the other hand, when the light level data is not included in the check threshold range, the light level ticket issuing unit 2321 determines whether the light level data is included in the device threshold range (S420).

As a result of the determination, when the light level data is included in the device threshold range, the light level ticket issuing unit 2321 first determines whether it is not included in the check threshold range (S430). If the light level data is not initially included in the check threshold range, the light level ticket issuing unit 2321 has not exceeded the device threshold range and thus warns the level of the light level data at a level that requires attention rather than urgent action. Set to) to issue a light level management ticket (S440). On the other hand, when the optical level data is initially included in the check threshold range, the optical level ticket issuing unit 2321 may determine whether the contents of the optical level data have been repeated three or more times in one day. The history of the light level management ticket stored in 2322 is retrieved (S450).

When the light level data is included in the check threshold range three or more times as a result of the determination, the light level ticket issuing unit 2321 updates the light level management ticket previously issued by the fourth warning to a third warning. Is issued (S460). If less than three times of the light level data is included in the check threshold range, the light level ticket issuing unit 2321 is not yet the third minor level, and thus adds a fourth warning to update the light level management ticket. (S470).

On the other hand, when the light level data is not included in the check threshold range and the device threshold range, the light level ticket issuing unit 2321 may be configured to check the light threshold data in the same device within one month. It is determined whether it is included in the device threshold range (S480).

If the light level data is not included in the check threshold range in the same device within one month, and the device threshold range is not included for the first time, the light level ticket issuing unit 2321 may issue a second alarm to manage the light level. A ticket is issued (S490). If the light level data is not repeatedly included in the check threshold range and the device threshold range in the same device within one month, the light level ticket issuing unit 2321 issues a first level (critical) to issue a light level management ticket. (S500).

As described above, the optical signal management apparatus 230 according to the embodiment of the present invention determines the grade of the optical level data periodically received at each occurrence of the WDM equipment 100_1-100_N, and generates an occurrence corresponding to the optical level data. By issuing an optical level management ticket that reflects the urgency of monitoring and action on points, unified management of each piece of equipment can be performed, and precautions can be taken before serious alarms occur. Can manage the quality of the network. In addition, by managing the optical signal level in the form of a ticket by unifying the failure and performance management of each of the WDM equipment (100_1-100_N) can contribute to the improvement of network quality.

The embodiments of the present invention described above are not implemented only through the apparatus and the method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Implementation may be easily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a view schematically showing a network management system according to an embodiment of the present invention.

2 is a schematic diagram illustrating an optical signal management apparatus according to an exemplary embodiment of the present invention.

FIG. 3 is a flowchart schematically showing a procedure of generating and updating an optical level ticket in the optical signal management apparatus shown in FIG. 2.

4 is a diagram illustrating an example of generating and updating a light level management ticket by determining a light level grade according to an embodiment of the present invention.

Claims (17)

In a system for managing a plurality of wavelength division multiplexing equipment (WDM), An optical level monitoring unit for receiving an optical signal transmitted from each of a plurality of wavelength division multiplexing devices, extracting and storing optical level data from the optical signal, and determining whether the extracted optical level data is to be monitored; and As a result of the determination of the light level monitoring unit, when the extracted light level data is to be monitored, the level of the light level data is determined by comparing the light level data with a check threshold range, and a ticket corresponding to the determined level and the rating is issued. An optical level ticket generation unit for generating the optical level management ticket based on the information, wherein the ticket issuing information includes at least one of an operator's action according to the above grade, an urgent action and a failure confirmation message; Wavelength division multiplexing equipment management system comprising a. The method of claim 1, The optical level ticket generation unit, An optical level ticket issuing unit that sets the inspection threshold range, determines whether the light level data is included in the inspection threshold range, and determines the class, and generates a light level management ticket using the class; and And a light level ticket storage unit for accumulating and storing a list and details of the light level management ticket generated by the light level ticket issuing unit. The method of claim 2, The check threshold range has a range between a check threshold upper limit value and a check threshold lower limit value, The optical level ticket issuing unit, Setting the inspection threshold upper limit by subtracting a user setting error value from the apparatus threshold upper limit of the plurality of wavelength division multiplexing devices; The apparatus for managing multiplex wavelength division multiplexing apparatus sets the check threshold lower limit value by adding the user set error value to the device threshold lower limit values of the plurality of wavelength division multiplexing equipment. The method of claim 3, The optical level ticket issuing unit, If the light level data is not included between the check threshold upper limit value and the check threshold lower limit value, And determining the class and searching the ticket issuing information necessary for generating a light level management ticket to generate the light level management ticket. 5. The method of claim 4, The optical level ticket issuing unit, And when the light level management ticket has been previously generated, updates the grade and ticket issuing information by adding to the previous light level management ticket. The method of claim 5, The light level monitoring unit, An optical level data collection unit for receiving the optical signal transmitted from each of the plurality of wavelength division multiplexing equipment and extracting the optical level data from the optical signal; An optical level data storage unit for storing the optical level data transmitted from the optical level data collection unit, and A wavelength division further comprising a light level data determination unit configured to determine whether the light level data is to be monitored and to generate and transmit a signal for requesting generation of the light level management ticket when the light level data is to be monitored; Multiplexing Equipment Management System. The method of claim 6, And the first alarm, the second alarm, the third alarm, and the fourth alarm are arranged in an urgent order. delete In the method of managing a plurality of wavelength division multiplexing equipment (WDM), Receiving optical signals from each of the plurality of wavelength division multiplexing devices to extract and store optical level data; Determining whether the extracted light level data is to be monitored, and setting a check threshold range when the extracted light level data is to be monitored; Comparing the extracted light level data with the check threshold range to determine a grade of the light level data, and retrieving ticket issuing information necessary for generating a light level management ticket; and Issuing a light level management ticket using the class and the ticket issuing information, wherein the ticket issuing information includes at least one of an operator's action according to the class, an urgent action and a failure confirmation message. A method of managing wavelength division multiplexing equipment comprising the step. 10. The method of claim 9, The check threshold range has a range between a check threshold upper limit value and a check threshold lower limit value, Setting the check threshold range, Setting the inspection threshold upper limit value by subtracting a user setting error value from the apparatus threshold upper limit values of the plurality of wavelength division multiplexing devices; and And adding the user set error value to the device threshold lower limit values of the plurality of wavelength division multiplexing devices to set the check threshold lower limit value. The method of claim 10, Issuing the ticket, And when the optical level management ticket has been previously issued in the corresponding wavelength division multiplexing device, updating the previous optical level management ticket by using the class and the ticket issuing information. delete In the method of managing a plurality of wavelength division multiplexing equipment (WDM), Extracting optical level data from optical signals received from each of the plurality of wavelength division multiplexing devices; Determining whether the light level data is included in a check threshold range, If the light level data is not included in the check threshold range, determining whether the light level data is included in a device threshold range of the plurality of wavelength division multiplexing equipment; If the light level data is not included in the device threshold range, granting a first alert or a second alert to generate a light level management ticket; and When the light level data is included in the device threshold range, it is determined whether the light level data is not included in the check threshold range for the first time and a third alert or a fourth alert is granted to the light level management ticket. Steps to generate Wavelength division multiplexing equipment management method comprising a. The method of claim 13, Generating the light level management ticket, Generating the light level management ticket by giving the fourth alert when the light level data is included in the device threshold range but is not included in the check threshold range for the first time; If the light level data is included in the device threshold range but is not included in the check threshold range more than a predetermined number of times within the first period, the previously issued fourth alert is updated with the third alert to update the light level. Creating a management ticket, and Generating the light level management ticket by adding the fourth alert when the light level data is included in the device threshold range but is not included in the check threshold range less than a predetermined number of times within the first period. Wavelength division multiplexing equipment management method comprising a. The method of claim 14, Generating the light level management ticket, If the light level data has not been included in the check threshold range for a second period of time and is not repeatedly included in the device threshold range, generating the light level management ticket by giving the first alert; and If the light level data has not been included in the check threshold range for the second period of time and is not included in the device threshold range for the first time, generating the light level management ticket by loading the second alert. Wavelength division multiplexing equipment management method. The method of claim 15, The check threshold range has a range between a check threshold upper limit value and a check threshold lower limit value, and the device threshold range has a range between a device threshold upper limit value and a device threshold lower limit value. Determining whether it is included in the check threshold range, Setting the inspection threshold upper limit value by subtracting a user setting error value from the apparatus threshold upper limit values of the plurality of wavelength division multiplexing equipment; and And adding the user set error value to the device threshold lower limit values of the plurality of wavelength division multiplexing equipment to set the check threshold lower limit value. The method according to any one of claims 13 to 16, And the first alarm, the second alarm, the third alarm, and the fourth alarm are set in an urgent order.

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