TWI608705B - Use of transmission network to alarm optical cable abnormality and its computer program product - Google Patents

Description

Transmission network alarm cable abnormal method and computer program product

The invention relates to a cable network alarm technical solution, in particular to a technical solution for early warning by analyzing feedback information of a network management system.

Because the fiber optic cable has a frequency bandwidth, the transmission capacity is large, the loss is low, the relay distance is long, the volume is small, the weight is light, and the anti-electromagnetic interference performance is strong. Therefore, the current telecommunications networks are mostly fiber-optic cables. The maintenance of fiber-optic cables is a very important issue for telecom operators.

The current cable monitoring is to test the core wire in the cable by means of a detecting device such as an optical time-domain reflectometer (OTDR). The aforementioned test will first send a test signal to the fiber and measure the feedback signal at a specific point. The measurement results are averaged and displayed in the form of tracks after repeated execution. The traffic personnel can know the strength of the signal (or the state of the fiber) in the entire fiber by analyzing the trajectory. However, such hardware testing equipment is costly and requires the use of fiber optic cable cores for testing, which greatly increases operating costs. In addition, telecom operators are unable to connect detection instruments to each fiber optic cable considering the cost of transportation, which in turn leads to blind spots in cable monitoring.

In summary, how to provide a technology that can replace the current test solution is a technical problem that needs to be solved in the field.

In order to solve the problems disclosed above, an object of the present invention is to provide a technical solution for alerting by analyzing a feedback signal of a cable network management system.

To achieve the above object, the present invention proposes an abnormal method for using a transmission network alarm cable, which is applied to a maintenance support system for managing a cable network management system. The foregoing method includes the following steps: First, accessing the signal loss alarm information of the topology link in the device manufacturer's network management system. Next, access to the performance of the cable network management system exceeds the threshold event. Furthermore, the signal loss warning information and the performance exceeding the threshold event are converted into the network management topology link information. Then, the optical fiber cable corresponding to the network topology information is converted into optical cable information and counted to provide a cable count number. And based on the count value to determine whether to evaluate the performance of a plurality of core wires in the fiber optic cable to provide a performance evaluation value. Finally, based on the performance evaluation value to determine whether abnormal warning information is generated.

In order to achieve the above object, the present invention provides a computer program product using an abnormality of a transmission network alarm cable. When the computer device loads and executes the computer program product, the steps described in the foregoing method can be completed.

In summary, the present invention quickly alerts a specific fiber optic cable by analyzing the alarm information fed back by the equipment manufacturer's network management system.

S101~S108‧‧‧Steps

S201~S203‧‧‧Steps

1‧‧‧ Maintenance Support System

2‧‧‧Device manufacturer's network management system

21‧‧‧Network Management Server

22‧‧‧ router

23‧‧‧ Optical cable network

FL‧‧‧Fiber Cable

L1‧‧‧1st core

L2‧‧‧2nd core

L3‧‧‧3rd core

L4‧‧‧4th core

FIG. 1 is a flow chart of an abnormal method for using a transmission network alarm cable according to an embodiment of the present invention.

2 is a schematic diagram of a system of a fiber optic cable network management system.

FIG. 3 is a schematic diagram of the method for detecting the performance threshold of the transmission network alarm cable according to the present invention; Set the flow chart.

Figure 4 is a schematic diagram of the topology link of the optical cable network management system.

The specific embodiments are described below to illustrate the embodiments of the invention, but are not intended to limit the scope of the invention.

Please refer to FIG. 1 , which is a method for using the transmission network alarm cable abnormality according to the present invention. The method is applied to the maintenance support system 1 shown in FIG. 2 , and the foregoing maintenance support system 1 is operated on a computer device, and The computer device is connected to the network management system 2 of the device manufacturer having the network management server 21, the router 22, and the optical cable network 23. The maintenance support system 1 is obtained by the device manufacturer's network management system 2 (including network element information, topological link, sub network connection, and routing information). Routing)), obstacles (alarms and events), and performance data (including performance and traffic flow statistics). The steps of the foregoing method are described as follows:

Start:

S101: Collecting Lost Of Signal (LOS) alarm information from the network management system 2 of the device manufacturer.

S102: Collecting a Threshold Cross Alert (TCA) event from the device manufacturer's network management system 2.

S103: Converting the lost alarm information and the performance exceeding the threshold event into the network topology information.

S104: Convert the optical fiber cable corresponding to the network topology information into optical cable information and count each The number of times the cable information is generated to provide a number of cable counts.

S105: Determine whether the number of times of single cable count exceeds the threshold value? If yes, execute S106; if no, end.

S106: Perform an immediate performance evaluation on the enabling core of the same optical fiber cable through a North Bound Interface (NBI) or a South Bound Interface (SBI) to provide a performance evaluation value.

S107: Determine whether the performance evaluation value (for example, the performance abnormal ratio) of the plurality of core wires related to the activation exceeds the threshold value (for example, 50%)? If yes, execute S108; if no, end.

S108: Generate abnormal warning information.

End.

Please refer to FIG. 3 , which is a flow chart of setting the performance threshold of the transmission network alarm cable abnormality according to the present invention, and the steps are as follows:

Start:

S201: The network management system 2 of the connection equipment manufacturer to access the topology link endpoint information.

S202: Determine whether the topology link endpoint threshold monitoring function is enabled. If yes, it ends; otherwise, S203 is executed.

S203: Turn on the setting of the performance threshold monitoring function.

End.

When accessing the network management obstacle message, the method of the present invention selects only the signal loss (LOS) alarm belonging to the topology link, and by setting the performance abnormal threshold of the device, when the performance of the performance is abnormal, the extension The Poke link may not have triggered an alarm, but this method can be used to cause the device to generate an event that exceeds the threshold (TCA), providing early judgment that the cable may be abnormal. The topology link of the above two types of information (alarm/event) corresponds to the optical cable core information, and counts the frequency occurring in a single calculation period, when the occurrence frequency is greater than a preset threshold value or the number of the core of the optical cable is used. If the single ratio threshold is used, the warning alarm notification of the cable may be abnormal. And when the integration information will be devalued, the Northbound Interface (NBI) or Southbound Interface (SBI) functions provided by the vendor's network management can also be used to check the performance of other topological links that do not create obstacles or events. data. Through the comparison of performance data, it is further confirmed that the abnormal information of the optical cable is correctly judged.

The foregoing abnormal warning information includes the device name endpoint information (rack/slot/埠...), the type of alarm (for example: LOS), and the alarm severity level (used to determine whether the alarm is generated or cleared).

The aforementioned performance event (TCA) parameters include information such as time of occurrence, device name, endpoint information (rack/slot/埠...), and performance type. The foregoing types of performance have corresponding parameter values depending on the circuit type. For example, the Ethernet circuit may include parameters such as transmission/reception flow, packet error and loss, and the transmission circuit includes error time, invalid time and optical power. And other parameters.

The threshold value of the aforementioned performance evaluation value can be set for the case of different circuits (quality of the supply circuit, service level agreement (SLA)). The core anomaly ratio threshold is preset to 50% and can be adjusted as appropriate. The invention uses the performance data as an abnormality judgment condition, and in addition to detecting the abnormality of the optical cable disconnection, the function of the early warning can be achieved, and the maintenance is prevented when the obstacle occurs.

In another embodiment, the present invention further provides a computer program product that uses an abnormality of a transmission network alarm cable. When the computer device loads and executes the computer program product, the steps described in the foregoing method can be completed.

Please refer to FIG. 4 , which is a schematic diagram of the topology link of the optical cable network management system 2 . This figure represents the presence of Shilin District in the fiber optic cable FL. Zhongshan District (1st core L1), Songshan District Zhongshan District (2nd core L2), Datong District Zhongshan District (3rd core L3), and Zhongzheng District In the Zhongshan District (4th core L4) four top links, the core R represents the detection of LOS alarm, the core Y represents the detection of the TCA event, and the core B represents the normal.

If the predicted threshold value of the abnormality of the optical cable is set to 3 times, when the above alarms and events occur, the optical fiber cable FL is counted three times by the method used in the present invention, and then the other core wires of the optical cable are obtained immediately. If the other core wire is in an abnormal state, it may be determined that the fiber cable FL may be abnormal. If only the LOS alarm (the first and second core alarms) occurs, the cable is determined to be an individual obstacle due to the threshold value being reached, and the optical fiber cable FL is normal.

It is assumed that the fiber optic cable FL is only degraded rather than broken, and some of the core wires will generate a TCA event due to degradation, and the LOS alarm state has not yet been reached. At this time, the cable degradation can be judged by detecting the TCA event of each endpoint. If the number of counts of degradation reaches the threshold value, it may be notified that the fiber optic cable FL may be abnormal first, thereby avoiding the risk of actual cable breakage.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

S101~S108‧‧‧Steps

Claims (10)

An operation method for managing a cable network management system using a transmission network alarm cable abnormality method, comprising: accessing a signal loss warning information of a topology link in the cable network management system; accessing the optical cable network A performance in the road management system exceeds the threshold event; the signal loss information and the performance exceeding the threshold event are converted into the network topology information; the optical fiber cable corresponding to the network topology information is converted into the optical cable The information is counted to provide a number of cable counts; the count value is used to determine whether to perform a performance evaluation on the plurality of core wires in the fiber optic cable to provide a performance evaluation value; and the performance evaluation value is used to determine whether an abnormality warning is generated. News. The method for using the transmission network alarm cable abnormality as described in claim 1, wherein the threshold value of the count value is 3 times. The method for using the transmission network alarm cable abnormality according to claim 1, wherein the performance evaluation value is an abnormal value of the optical cable. The method for using the transmission network alarm cable abnormality as described in claim 3, wherein the threshold of the abnormal value of the optical cable is 50%. The method for using the transmission network alarm cable abnormality described in claim 1 further accesses the topology link endpoint information of the cable network management system, and determines whether to enable the performance threshold monitoring of the topology link endpoint information. If the transmission network alarm cable abnormality method described in claim 5 is used, it is determined that the performance threshold monitoring is not enabled. The method for transmitting an alarm cable anomaly according to claim 1, wherein the optical cable is accessed by a north interface or a south interface of the cable network management system for performance evaluation. The method for transmitting a transmission network alarm cable abnormality according to claim 1, wherein the northbound or southbound interface of the optical cable network management system accesses the topology link that does not cause an obstacle or an event to perform. The method for using the transmission network alarm cable abnormality described in claim 1 is to access the performance of the cable network management system in a single cycle to exceed the threshold event for judgment. A computer program product using an abnormality of a transmission network alarm cable. When the computer device loads and executes the computer program product, the method of any one of claims 1 to 9 can be completed.