CN114297255B - Network quality work order fault early warning method based on log analysis - Google Patents

Network quality work order fault early warning method based on log analysis Download PDF

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CN114297255B
CN114297255B CN202111554152.2A CN202111554152A CN114297255B CN 114297255 B CN114297255 B CN 114297255B CN 202111554152 A CN202111554152 A CN 202111554152A CN 114297255 B CN114297255 B CN 114297255B
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CN114297255A (en
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朱文进
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China Telecom Digital Intelligence Technology Co Ltd
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Abstract

The invention provides a network quality work order fault early warning method based on log analysis, which comprises the following steps: constructing a log server and receiving index monitoring values of all network devices; setting an index threshold value for each network device; respectively counting the index anomaly times of each network device in each period of each region, and recording whether a fault work order is generated in the corresponding period of the corresponding region; constructing a statistical database and storing statistical information; calculating the generation probability of the work order faults in each time period of each region on the n+1 day according to the statistical information of the n th day in the statistical database by calculating the statistical model parameters of the work order faults; and dividing the early warning grades by setting different early warning thresholds according to the generation probability of the work order faults. The invention establishes the statistical model by using the historical index monitoring value and the historical work order fault information of each network device, can early warn the network quality fault work orders of different time periods of each region, is beneficial to improving the operation and maintenance efficiency of the network system, and further improves the overall service efficiency of the network system.

Description

Network quality work order fault early warning method based on log analysis
Technical Field
The invention belongs to the technical field of computer networks, and particularly relates to a network quality work order fault early warning method based on log analysis.
Background
With the rapid development of information industry, the variety and traffic of services carried on wide area networks are continuously increasing, the scale is also continuously expanding, and a large number of terminal access devices are widely used. Meanwhile, network systems are becoming larger and more complex, and they generally comprise thousands or even tens of thousands of network devices deployed in different urban areas, and in order to ensure smooth performance of related network services of the network system in each urban area, it is necessary to monitor network quality of each network device and process the network device in time when a network failure occurs. However, the operation and maintenance of the network device is a passive operation and maintenance at present, that is, after the failure occurs, the failure is reflected to the related departments through the work order, and then the related departments assign technicians to perform the troubleshooting and recovery, so that a long time is required from the failure generation to the recovery. If the work order faults of the network system in different time periods of different urban areas can be pre-warned, related personnel can improve the monitoring strength before the work order faults occur, so that problems can be quickly found to solve the possible faults, and the service efficiency of the network system can be obviously improved greatly.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a network quality work order fault early warning method based on log analysis, which adopts the following technical scheme:
A network quality work order fault early warning method based on log analysis comprises the following steps:
step 1: constructing a log server for receiving network quality index monitoring values of a plurality of network devices in each area;
Step 2: setting an index threshold for each network device, and if the network quality index monitoring value of each network device is greater than the index threshold, calling the network quality index monitoring value as an index abnormal value;
Step 3: analyzing network quality index monitoring values in a log server in a regional and time-division mode, respectively counting the occurrence times of index abnormal values of each network device in each time period in each region every day, and recording whether a fault work order is generated in the corresponding time period of the corresponding region;
Step 4: constructing a statistical database for storing the statistical information in the step 3; the statistical database contains the occurrence times of index abnormal values of each network device in each period of each region and whether fault work orders are generated or not;
step 5: according to the statistical information in the statistical database, calculating the statistical model parameters of the work order fault, including the work order fault generation probability of each time period in each region, the average value of the occurrence times of index abnormal values of each network device when the work order fault is generated in each time period in each region, and the fault contribution rate of each network device in each time period in each region;
Step 6: combining the statistical model parameters obtained in the step 5, and calculating the generation probability of work order faults in each time period in each region on the n+1 day according to the statistical information on the n day in the statistical database;
step 7: and dividing the early warning level by setting different early warning thresholds according to the generation probability of the work order faults in each time period of each region on the n+1th day.
Further, in step 5, the calculation formula of the job ticket failure occurrence probability of each period in each area is:
Wherein, p Failure of (Ai,Tj) represents the work order fault generation probability of the A i area T j period, M represents the statistical days, statistics is carried out once per period each day, and M (A i,Tj) represents the number of times of work order faults generated in the A i area T j period.
Further, in step 5, the average value of the occurrence times of the abnormal index values of the network devices when the work order fault occurs in each period in each region is recorded as the average value of the abnormal index times, and the calculation formula is as follows:
wherein, Index anomaly frequency mean value of v-th network equipment when work order faults occur in T j period of A i area is represented, and index anomaly frequency mean value of v-th network equipment is represented by "/>And (3) indicating the index anomaly times of the v-th network equipment when the U-th work order fails, counted in the period T j of the A i area, and assuming that the U work order fails are counted in M days.
Further, in step 5, the calculation formula of the fault contribution rate of each network device in each period in each area is as follows:
where a (a i,Tj, v) represents the failure contribution rate of the v-th network device of the a i region T j period, The index anomaly number average value of the V-th network device in the period T j in the area a i is represented, and a total of V network devices in the area a i are assumed.
Further, in step 6, the calculation method of the generation probability of the work order fault in the n+1st day A i area T j period is as follows:
first, the failure probability of each network device in the a i area T j period is calculated separately:
Then, the generation probability p n+1(Ai,Tj of work order faults in the time period T j of the A i area on the n+1th day is calculated,
Wherein p (A i,Tj, v) represents the failure probability of the v-th network device in the period of T j in the A i area, and D n(Ai,Tj, v) represents the index anomaly number of the v-th network device in the period of T j in the A i area counted on the nth day.
Further, in step 7, if p n+1(Ai,Tj)>β1 is detected, a light early warning is performed; if p n+1(Ai,Tj)>β2 is detected, performing moderate early warning; if p n+1(Ai,Tj)>β3 is detected, carrying out severe early warning; beta 1、β1、β1 is different pre-warning thresholds, and beta 1<β2<β3.
The beneficial effects of the invention are as follows: compared with the prior art, the invention establishes the statistical model by using the historical index monitoring values and the historical work order fault information of each network device in different regions and different time periods of the network system through log analysis, can early warn the network quality fault work orders in different time periods of each region, is beneficial to improving the operation and maintenance efficiency of the network system, and further improves the overall service efficiency of the network system.
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FIG. 1 is a schematic flow chart of the method of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention mainly includes the following steps:
(1) A log server is constructed for receiving daily network quality index monitoring values, such as network delay, of a plurality of network devices in each area.
(2) Setting an index threshold for each network device, and if the network quality index monitoring value of each network device is greater than the index threshold, then the network quality index monitoring value is called an index abnormal value.
(3) And carrying out regional and time-division analysis on the network quality index monitoring value in the log server, respectively counting the occurrence times of the index abnormal value of each network device in each time period in each region every day, and recording whether a fault work order is generated in the corresponding time period of the corresponding region.
(4) Constructing a statistical database for storing the statistical information in the step (3); the statistical database contains the occurrence times of index abnormal values of each network device in each period of each region and whether fault worksheets are generated or not.
(5) And calculating the statistic model parameters of the work order faults according to the statistic information in the statistic database.
Calculating the work order fault generation probability of each period in each region:
Wherein, p Failure of (Ai,Tj) represents the work order fault generation probability of the A i area T j period, M represents the statistical days, statistics is carried out once per period each day, and M (A i,Tj) represents the number of times of work order faults generated in the A i area T j period.
The average value of the index abnormal value occurrence times of each network device when each time period in each region generates work order faults is recorded as the average value of the index abnormal times, and the calculation formula is as follows:
wherein, Index anomaly frequency mean value of v-th network equipment when work order faults occur in T j period of A i area is represented, and index anomaly frequency mean value of v-th network equipment is represented by "/>And (3) indicating the index anomaly times of the v-th network equipment when the U-th work order fails, counted in the period T j of the A i area, and assuming that the U work order fails are counted in M days.
Calculating fault contribution rates of network devices in each time period in each region:
where a (a i,Tj, v) represents the failure contribution rate of the v-th network device of the a i region T j period, The index anomaly number average value of the V-th network device in the period T j in the area a i is represented, and a total of V network devices in the area a i are assumed.
(6) Combining the probability model parameters obtained in the step 5, and calculating the generation probability of the work order faults in the A i area T j time period on the n+1th day according to the statistical information on the n th day in a statistical database:
first, the failure probability of each network device in the a i area T j period is calculated separately:
Then, the generation probability p n+1(Ai,Tj of work order faults in the time period T j of the A i area on the n+1th day is calculated,
Wherein p (A i,Tj, v) represents the failure probability of the v-th network device in the period of T j in the A i area, and D n(Ai,Tj, v) represents the index anomaly number of the v-th network device in the period of T j in the A i area counted on the nth day.
(7) According to the generation probability of work order faults in each time period of each region on the n+1th day, dividing the early warning grades by setting different early warning thresholds:
if p n+1(Ai,Tj)>β1 is detected, carrying out light early warning;
if p n+1(Ai,Tj)>β2 is detected, performing moderate early warning;
if p n+1(Ai,Tj)>β3 is detected, carrying out severe early warning;
wherein, β 1、β1、β1 is different pre-warning thresholds, and β 1<β2<β3.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.

Claims (6)

1. The network quality work order fault early warning method based on log analysis is characterized by comprising the following steps of:
step 1: constructing a log server for receiving network quality index monitoring values of a plurality of network devices in each area;
Step 2: setting an index threshold for each network device, and if the network quality index monitoring value of each network device is greater than the index threshold, calling the network quality index monitoring value as an index abnormal value;
Step 3: analyzing network quality index monitoring values in a log server in a regional and time-division mode, respectively counting the occurrence times of index abnormal values of each network device in each time period in each region every day, and recording whether a fault work order is generated in the corresponding time period of the corresponding region;
Step 4: constructing a statistical database for storing the statistical information in the step 3; the statistical database contains the occurrence times of index abnormal values of each network device in each period of each region and whether fault work orders are generated or not;
step 5: according to the statistical information in the statistical database, calculating the statistical model parameters of the work order fault, including the work order fault generation probability of each time period in each region, the average value of the occurrence times of index abnormal values of each network device when the work order fault is generated in each time period in each region, and the fault contribution rate of each network device in each time period in each region;
Step 6: combining the statistical model parameters obtained in the step 5, and calculating the generation probability of work order faults in each time period in each region on the n+1 day according to the statistical information on the n day in the statistical database;
step 7: and dividing the early warning level by setting different early warning thresholds according to the generation probability of the work order faults in each time period of each region on the n+1th day.
2. The network quality work order fault early warning method based on log analysis as claimed in claim 1, wherein in step 5, the calculation formula of the work order fault generation probability of each period in each region is:
Wherein, p Failure of (Ai,Tj) represents the work order fault generation probability of the A i area T j period, M represents the statistical days, statistics is carried out once per period each day, and M (A i,Tj) represents the number of times of work order faults generated in the A i area T j period.
3. The log analysis-based network quality work order fault early warning method as claimed in claim 2, wherein in step 5, the average value of the occurrence times of the index abnormal values of each network device when the work order fault is generated in each period in each region is recorded as the average value of the index abnormal times, and the calculation formula is as follows:
wherein, Index anomaly frequency mean value of v-th network equipment when work order faults occur in T j period of A i area is represented, and index anomaly frequency mean value of v-th network equipment is represented by "/>And (3) indicating the index anomaly times of the v-th network equipment when the U-th work order fails, counted in the period T j of the A i area, and assuming that the U work order fails are counted in M days.
4. The network quality work order fault early warning method based on log analysis as claimed in claim 3, wherein in step 5, the calculation formula of the fault contribution rate of each network device in each period of each region is:
where a (a i,Tj, v) represents the failure contribution rate of the v-th network device of the a i region T j period, The index anomaly number average value of the V-th network device in the period T j in the area a i is represented, and a total of V network devices in the area a i are assumed.
5. The method for early warning of network quality work order faults based on log analysis as claimed in claim 4, wherein in the step 6, the calculation method of the generation probability of work order faults in the (n+1) th day A i area T j period is as follows:
first, the failure probability of each network device in the a i area T j period is calculated separately:
Then, the generation probability p n+1(Ai,Tj of work order faults in the time period T j of the A i area on the n+1th day is calculated,
Wherein p (A i,Tj, v) represents the failure probability of the v-th network device in the period of T j in the A i area, and D n(Ai,Tj, v) represents the index anomaly number of the v-th network device in the period of T j in the A i area counted on the nth day.
6. The network quality work order fault early warning method based on log analysis as claimed in claim 5, wherein in step 7, if p n+1(Ai,Tj)>β1, a light early warning is performed; if p n+1(Ai,Tj)>β2 is detected, performing moderate early warning; if p n+1(Ai,Tj)>β3 is detected, carrying out severe early warning; beta 1、β1、β1 is different pre-warning thresholds, and beta 1<β2<β3.
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