JPH01236850A - Device for locating and processing fault location - Google Patents

Abstract

PURPOSE:To estimate a fault location quickly with high accuracy by discriminating fault notice information of a communication network depending on each occurred location, collecting a specified fault event with a fault occurrence pattern registered in advance and generating the information specifying the fault location. CONSTITUTION:A pooling means 1 applies timewise rounding to fault notice information and identifies the cause to a fault by equalizing deviated times of fault occurrence. A grouping means 2 applies timewise rounding to fault notice information and prevents the dispersion of a fault event to be recognized by correcting the unarrived fault notice information by original fault information. The representing processing of a fault pattern due to rounding of the fault event is inserted to a pre-stage, and the extraction processing of the fault pattern by a fault location specification means 3 requires only the extraction processing of the representative fault pattern. Thus, the load of processing is relieved and the estimate accuracy is improved by routine processing and simplification of the specification processing.

Description

[Detailed Description of the Invention] [Summary] Relating to a fault location identification processing device fK in a communication network for identifying a faulty device or a faulty line when a fault occurs in a communication device or a communication line constituting a communication network. In a fault location identification processing device that identifies a fault location that occurs in a communication device or communication line in a communication network, the purpose is to enable a fault location identification processing device to quickly and highly accurately estimate the fault location. a pulleying means for retaining failure notification information from a communication network for a predetermined period of time; and a grooving means for identifying a failure event by discriminating the retained failure notification information for each location of occurrence; Predictions and specific failure events
and a fault location specifying means for generating information for identifying a fault location V by comparing it with a registered fault occurrence pattern.

[Industrial application field]

The present invention relates to a fault location identification processing device, and particularly to a fault location identification processing device in a communication network for identifying a faulty device or a faulty line when a fault occurs in a communication device or communication line that constitutes a communication network. It is related to.

Communication networks tend to become larger and more complex, and as a result, once a failure occurs within a network, the failure event spreads over a wide range of areas, so failure notification information is distributed over a wide area and is Because of the discrepancy in the occurrence time of failure information, it is difficult to identify the true location of the failure.

It is desired that the fault location identification processing device be capable of quickly and accurately identifying the fault location even in such a case.

[Conventional technology]

In conventional failure location identification processing devices, failure occurrence patterns are registered in advance for the device, and when a failure event is notified from the communication network, this is directly compared with the registered pattern, and similar patterns are detected. K was instructed to estimate the location of the failure by determining the degree of damage.

[Problem to be solved by the invention]

In the conventional fault location identification processing device, the fault location is estimated by directly comparing the similarity between a pre-registered fault occurrence pattern and a notified fault event. However, when a communication system is targeted, a large number of communication devices and communication lines are included in the system, which causes the following problems.

(1) Fault notification information may be distributed over a wide area, and depending on the type of primary fault, some devices may
Failure notification information may not arrive from the line. In such a case, the recognized failure event may be separated into multiple events even though the cause of the failure is the same.

(2) The propagation time of a fault is different between the two lines of each device, and there is no absolute reference time in the network, and the reference time differs depending on one line of each device, resulting in a discrepancy in the time of fault occurrence that is notified. , it is not possible to guarantee the identity of the cause of the failure by time synchronization.

Due to these causes, conventional fault location identification processing devices have had problems in that it takes time to identify the fault location and there is a limit to the accuracy of fault location estimation.

The present invention is intended to solve the problems of the prior art, and aims to enable a fault location identification processing device to quickly and accurately estimate a fault location.

[Means to solve the problem]

The fault location identification processing device of the present invention, as shown in FIG. and,
It comprises a crouping means 2 and a fault location specifying means 3.

The pulleying means 1 holds failure notification information from a communication network for a predetermined period of time.

The grooving means 2 identifies failure events by distinguishing the failure notification information held in the pulleying means 1 for each occurrence location.

The fault location specifying means 3 compares the fault event specified by the grooving means 2 with a pre-registered fault occurrence pattern to determine the fault location! It generates identifying information.

[For production]

In the fault location identification processing device of the present invention, pulling processing and grooving processing of fault notification information are performed as processing for representing a fault pattern by rounding K of fault events.

The pooling process aims to round the failure notification information in time, and by equalizing the deviated failure occurrence times, the cause of the failure is assimilated.

Grooving processing aims to round up the failure notification information in time, and prevents the recognized failure events from being dispersed by correcting the failure notification information that does not arrive with the original failure information.

By inserting the process of representing failure patterns by rounding failure events in the previous stage, the process of extracting failure patterns in failure location identification processing becomes only the extraction of representative failure patterns, which reduces the processing load. In addition, it is possible to improve the estimation accuracy by standardizing and simplifying the specification process.

〔Example〕

FIG. 2 shows an embodiment of the present invention, and explains the configuration of the fault location identification processing device of the present invention and the flow of data in fault location estimation, in which 11 is a fault estimation buffer pool, 12 is 13 is a grooving buffer; 14 is a specialization buffer; 15 is a master pulleying buffer;
16 is a failure determination buffer, 16 is an impact determination buffer, and 17 is an operating status information buffer.These are actually provided as 7 parts of the memory on the computer, and judgment and processing are performed based on the programs they each have. It is something to do.

FIG. 3 is a flowchart showing the flow of processing in the embodiment shown in FIG.

Furthermore, Figures 4 and 5 explain state transitions in pulleying processing and grooving processing, respectively.

When failure notification information is input as time-series data from the communication network (step S1), the failure estimation buffer pool 11 and master pulleying buffer 12 store the information and perform pulleying, that is, temporal integration processing (step S2). ).

The failure estimation buffer pool 11 holds data for a relatively short unit time, for example, S seconds, and is in a temporary pooling state,
The master pooling buffer 12 updates the failure estimation buffer pool 11 every relatively long unit time, for example, n5 minutes.
The master pulleying state is achieved by accumulating the data of
After that, both backups are cleared and the same process as above is repeated.

In this way, in pulleying processing, by back-aligning for a certain period of time, all information notified during this period is recognized as having occurred due to the same cause, and this group of notification information is processed as one specific processing unit. . Note that the length of the unit time for performing the pulleying process varies depending on the configuration, size, etc. of the system. Also, if the unit time for passing data from the pulleying process to the grooving process is, for example, n1 minutes, generally nQ=rll, but
n.

By setting <nl, it is possible to reduce the load on the processing device.

Next, when data is passed from the pulleying process, the crewing buffer 13 stores the data and performs grooveving, that is, regional integration process 2 (step S3).

The grooving buffer 16 enters the master grooving state by receiving data from the pulleying process, performs double data deletion processing, and enters the -time grooving state. Duplicate data deletion is performed by unifying duplicate notifications from the same device, and such double notifications are caused by the printed board for the same failure cause.

This is caused by the occurrence of different failure notifications for each Quelf, etc. The double data deletion process is performed, for example, by assigning an identification number (ID) to each device and integrating the data when the notified IDs are duplicates.

Next, in the temporary grooving state, connection relationships on the communication path are searched from the network configuration information, and unreported information is supplemented to assemble a local group. As a processing method for compensating for unnotified information in the middle based on connection relationships on the communication path, network configuration information (communication equipment and lines between them) is defined in the system, and when the notification information is combined, the information shown in Figure 6 is used. As shown in the example, if the middle part cannot be connected only by notification information, the middle part is recognized as unnotified information and compensated for. In the specified buffer 14, a first crouping state is formed by the assembled local groups, and the same process is repeated, especially when i
The pattern is formed up to the n-grooving state, and the terminal information is discarded to form a representative pattern. The processing method in this case is as shown in FIG. 7, by identifying the information between two opposing points, sorting the information into the cause of the failure and the influence information, and deleting the influence information if the sort can be made.

Also, as shown in Figure 8, information identified as impact information is deleted from the topological findings.

When the representative pattern is extracted in this way, the fault determination buffer 15K performs processing to identify the fault location using the representative pattern (step S4).

That is, when a representative pattern is extracted in the specification buffer 14, it is stored in the failure determination buffer 15, and
Performs fault location identification processing by extracting representative patterns. In the failure determination buffer 15, the failure information of each local group is checked against the failure occurrence pattern that has been determined in advance.Furthermore, in the impact determination buffer 16, a system corresponding to the specified failure location is used. Determine the impact on each part and do this! accumulate. Operating status information buffer 1
In step 7, the fault location specified by the fault determination buffer 15 and the influence of the fault determined by the influence determination buffer 16 are displayed on a graphic panel or the like.

〔Effect of the invention〕

As explained above, according to the fault location identification processing device of the present invention, the fault location identification processing is performed after the fault pattern representative processing is performed, so that the fault location identification processing is standardized.
This simplification makes it possible to improve the accuracy of fault location estimation.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the principle configuration of the present invention, Fig. 2 is a diagram showing an embodiment of the invention, Fig. 3 is a flowchart showing the flow of processing in the embodiment of Fig. 2, and Fig. W & 4 is a diagram showing the pulley. A diagram showing the state transition of processing,! 3
Figure 5 is a diagram showing the state transition of the grooving process, Figure 6 is a diagram explaining the compensation of unreported information, Figure 7 is a diagram explaining the deletion of influence information that counters the cause of the failure, and Figure 8 is the topology. FIG. 2 is a diagram illustrating deletion of influence information based on . 11... Fault estimation buffer pool 12... Master pulleying buffer 13... Grooving buffer 14... Specification buffer 15... Fault determination buffer 16... Impact determination buffer 17... Operating status information buffer

Claims (1)

[Scope of Claims] A fault location identification processing device for identifying a fault location occurring in a communication device or a communication line in a communication network, comprising: a pulleying means (1) for retaining fault notification information from the communication network for a predetermined period of time; a grooving means (2) for specifying a failure event by discriminating the failure notification information held in the means (1) according to its occurrence location; Fault location identification means (
3) A failure location identification processing device.