WO2004039004A1 - Procede de traitement d'alerte dans un reseau de communications et gestionnaire d'analyse de relativite - Google Patents

Procede de traitement d'alerte dans un reseau de communications et gestionnaire d'analyse de relativite Download PDF

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Publication number
WO2004039004A1
WO2004039004A1 PCT/CN2003/000884 CN0300884W WO2004039004A1 WO 2004039004 A1 WO2004039004 A1 WO 2004039004A1 CN 0300884 W CN0300884 W CN 0300884W WO 2004039004 A1 WO2004039004 A1 WO 2004039004A1
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WO
WIPO (PCT)
Prior art keywords
alarm
alarms
analyzed
analysis
correlation analysis
Prior art date
Application number
PCT/CN2003/000884
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English (en)
Chinese (zh)
Inventor
Yibo He
Jinfeng Liang
Zhiming Ye
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to AU2003280535A priority Critical patent/AU2003280535A1/en
Publication of WO2004039004A1 publication Critical patent/WO2004039004A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0604—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
    • H04L41/0622—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time based on time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0677—Localisation of faults

Definitions

  • the present invention relates to a communication network fault alarm processing technology, and in particular, to a communication network alarm processing method and a correlation analysis manager. Background of the invention
  • the communication network consists of multiple devices. When the device itself or internally fails, the communication device will send an alarm to notify the network management unit to redistribute routes to the network, avoid using the failed link or communication device, and remind the network management unit. Repair the faulty communication device.
  • the communication network can be divided into multiple VLANs.
  • Each VLAN includes multiple devices.
  • Each device communicates by broadcast. That is, it sends information to all devices in the same VLAN. Communication needs to go through a switch.
  • the above-mentioned fault alarms will generate a large amount of alarm information during the process of reporting to the network management unit through the relevant equipment and switches in the network, including the root cause alarm caused by the fault itself and other various alarms caused by the occurrence of the fault alarm Alarms related to the root cause alarm, that is, non-root cause alarms.
  • an alarm processing method for an optical transmission device is as follows: The determined alarm ID determines whether the detected alarm is the root cause alarm. If it is the root cause alarm, the non-root cause alarm caused by the root cause alarm on the network is determined and eliminated according to the network structure, that is, the propagation direction The next network element eliminates the non-root cause alarm on the network element. Since network devices communicate with each other, related information, such as source address, destination address, and fault description, are typed into the data packet. Therefore, based on the address in the alarm, you can determine whether the node or location where the alarm occurred meets the propagation direction.
  • the above-mentioned optical transmission device's alarm processing method first searches for network elements in the direction of alarm propagation according to the root cause alarm, and then eliminates or masks non-genuine source alarms on these network elements. This method only first finds the node or location where the alarm is sent, and then Determine whether there is a non-root cause alarm, so as to suppress the network element equipment from generating a non-root cause alarm.
  • the main purpose of the present invention is to provide a method for processing communication network alarms and a correlation analysis manager applied thereto, so as to solve the problems of generality and scalability in the prior art.
  • An alarm processing method for a communication network includes:
  • the searched alarm is used as the alarm to be analyzed
  • step D the source alarm, and the alarm is treated as a processed alarm, and then step D is performed; if there is no timeout, step C is performed;
  • step D Determine whether all the alarms to be analyzed have been analyzed, and if not, go back to step B; if yes, go to step E;
  • the step A further includes: simultaneously placing the alarm to be analyzed into a work area and a cache in a correlation analysis manager.
  • the step A further includes: adding a time to each alarm to be analyzed
  • the step C further includes: performing the correlation analysis on each of the alarms to be analyzed without a timeout in pairs.
  • the correlation analysis includes: if the correlation analysis rules are not met between the two alarms, then step D is directly performed; if the correlation analysis rules are met between the two alarms, the unshielded non-root cause alarm is marked with a shield mark, and The serial number of the source alarm is used as the root alarm serial number of the non-root source alarm, and the non-root source alarm is used as the processed alarm, and then step E is performed.
  • the correlation analysis rule includes at least a network element related relationship, a service peer relationship, or a service upstream and downstream relationship.
  • the correlation analysis rules are stored in an analysis rule knowledge base of an external database.
  • the method further includes: providing a user to update a correlation analysis rule in the analysis rule knowledge base.
  • the method further includes: mapping the processed alarms to corresponding alarms in the correlation analysis manager cache.
  • a communication network alarm correlation analysis manager includes a receiving interface, an alarm data buffer, a work area, an analysis engine, and an output interface.
  • the receiving interface is used to receive a report to be analyzed.
  • Alarm is used to receive a report to be analyzed.
  • the alarm data buffer is connected to the receiving interface and is used to store the alarm to be analyzed and the analysis result
  • the work area is connected to the alarm data buffer and used to store the alarm mapped to the data in the alarm data buffer Information
  • the analysis engine is connected to the alarm data cache and the work area, and is configured to perform correlation analysis on the alarm to be analyzed in the work area, and then input the analysis result into the alarm data cache; the output interface and the alarm data cache Connected to output analysis results in the alarm data buffer.
  • the correlation analysis manager further includes an interface that can be triggered every second, for controlling the time that the alarm is in the cache. '
  • the present invention does not suppress the non-root-cause alarms generated by the communication equipment, but searches all the alarms in the network, and uniformly processes the different alarms of different devices, so as to prevent a large number of non-root-type alarms from being reported to the network management Center, thereby preventing the flood of fault alarm information, facilitating and helping maintenance personnel to quickly locate the fault; at the same time, the present invention also stores the correlation analysis rules in the analysis rule knowledge base of an external database to facilitate maintenance and expansion by users. Therefore, the present invention has strong versatility and expandability. Brief description of the drawings
  • FIG. 1 is a flowchart of the alarm processing of the present invention.
  • FIG. 2 is a schematic diagram of a correlation manager of the present invention. Mode of Carrying Out the Invention
  • the idea of the present invention is to search all alarms in the network, including root-source alarms and non-root-source alarms, and then determine whether there is a correlation between the searched alarms, mark the non-root-source alarms that meet the correlation rules, and then use the marker to Eliminate or mask the non-root cause alarm.
  • the present invention can analyze the relationship between alarms by using a dynamic analysis method. Determine the root cause alarm and eliminate or shield the non-root cause alarm. The specific steps are:
  • Step 101 Search for alarm messages in the network, and use the searched alarms as alarms to be analyzed.
  • Step 102 Place the alert to be analyzed into the cache and work area of the correlation analysis manager.
  • the alarm to be analyzed is also placed in the working area at the same time as the cache, that is, the mapping between the cache and the data in the working area.
  • Step 103 The correlation analysis manager reads in the required correlation analysis rules.
  • the correlation analysis rule includes at least a network element correlation, a service peer relationship, or a service upstream and downstream relationship.
  • the correlation analysis rule is stored in an analysis rule knowledge base in an external database.
  • the analysis rule knowledge base includes a basic rule knowledge base and The knowledge base is expanded, wherein the basic rule knowledge base includes some basic correlation analysis rules, and the user can add, delete or modify the correlation analysis rules in the extended knowledge base, thereby implementing the update of the correlation analysis rules.
  • Step 104 The analysis engine determines whether the analysis time of each alarm to be analyzed in the work area exceeds a preset time, and if the timeout expires, the alarm is considered to be a source alarm, and the alarm is treated as a processed alarm, and then executed.
  • Step 106 if there is no timeout, go to step 105.
  • Step 105 According to the above correlation rules and a certain algorithm, perform correlation analysis on any two of the above-mentioned alarms to be analyzed without timeout in the work area, that is, determine whether there is a network element correlation between the two alarms to be analyzed. Relevances such as business peer relationship or business upstream and downstream relationship, but alarms that have been confirmed as non-root cause alarms no longer participate in the above correlation analysis.
  • step 107 is performed; if there is a correlation between the two alarms, for example, if there is a correlation between an unscreened alarm B to be analyzed and the root alarm A, the alarm B is considered
  • the correlation analysis manager can directly delete alarm B, or modify the attributes of alarm B, that is, block the alarm B and change the root alarm serial number of alarm B to the serial number of alarm A. No., the alarm B is regarded as a processed alarm, and then step 106 is performed.
  • Rule 1 describes that alarm A belongs to R—LOS type alarm, and alarm B belongs to TU—AIS type alarm. If A and B occur on the same board of the same network element, then A can suppress B. During the processing of the alarm, if the two alarms received are A1 and Bl, and the analysis engine analyzes that A1 and B1 meet rule 1, then A1 suppresses B1, that is, only reports Al to the network management center.
  • Step 106 The work area maps the processed non-root cause alarms to corresponding alarms in the cache.
  • Step 107 It is judged whether all the alarms to be analyzed in the cache have been analyzed, and if not all the analysis is completed, then return to step 104; if all the analysis is completed, step 108 is performed.
  • Step 108 Output all processed alarms in the buffer as the result of the analysis.
  • Step 109 Eliminate or mask the non-root cause alarm according to the analysis result.
  • the analysis process adopts a dynamic method, that is, real-time correlation analysis is performed on the alarms reported by the device or the lower-layer network manager, and the relationship between the alarms is analyzed to determine the root alarm.
  • a real-time analysis method is adopted, that is, correlation analysis is performed on each of the alarms to be analyzed in pairs every second. Taking into account factors such as the reflection time of the alarm, the processing capacity of the system, and the difference in the occurrence time of related alarms, and the occurrence time of related alarms should be similar, so when performing dynamic analysis, it is only necessary to analyze the time span within a small range.
  • Correlation between alarms can be In order to reduce the number of alarms, it is convenient for users to locate.
  • the existence time of the alarm in the cache of the correlation analysis manager that is, the time during which the alarm is analyzed in the correlation analysis manager, is a small fixed value.
  • the time in the cache exceeds this fixed value, the alarm is considered not to be a non-root cause alarm, and the alarm is treated as a processed alarm and output as the result of analysis.
  • the fixed value can be set to 5 seconds in practical applications.
  • This problem can be solved by adding a timestamp to each alarm to be analyzed in the cache, and then outputting the overtime alarm as the analysis result in the timing driver.
  • a timestamp is not efficient, and it is also necessary to actively move the mapping object in the analysis engine out of the work area.
  • a wait function is provided in ILOG Rules, which can conveniently control the existence time of data in the work area, so this function can also be completed by custom rules.
  • the above dynamic analysis function can be turned on or off by the user.
  • any alarm to be analyzed has a serial number and a root alarm serial number.
  • the root alarm serial number of the alarm such as alarm B
  • the root of the alarm B is If the alarm is alarm A, the serial number of alarm A is used as the root alarm serial number of alarm B.
  • the analysis engine used in correlation analysis is very important.
  • the engine compiled from ILOG Rules can already meet the basic requirements, it is more cumbersome to use, and if it is used directly, it is not scalable, so the engine needs to be packaged into a correlation analysis manager.
  • FIG. 2 is a schematic diagram of a correlation analysis manager in the present invention.
  • the correlation analysis manager includes a receiving interface, an alarm data cache, a workspace, an analysis engine, and an output interface.
  • the correlation analysis manager has two external interfaces: a receiving interface that receives the alarm to be analyzed and an output interface that outputs the analysis result of the alarm.
  • the receiving interface is connected to the alarm data buffer and is used to receive the searched alarms to be analyzed.
  • the output interface is also connected to the alarm data buffer and is used to output the analysis results in the alarm data buffer.
  • the alarm data buffer is connected to the above receiving and output interfaces.
  • the working area is connected to the alarm data cache and is used to store the alarm information mapped to the data in the alarm data cache;
  • the analysis engine is connected to the alarm data cache and the work area to perform the analysis of the alarm to be analyzed Correlation analysis, and then input the analysis result into the alarm data cache.
  • the fault diagnosis rule it can be considered as the characteristic of the correlation analysis manager itself.
  • the input and output data types of the two interfaces can be defined as the same type.
  • a cache of alarm data can be established, and the data in the cache is related to the correlation.
  • the data in the work area of the analysis manager is a mapping relationship. All the alarms to be analyzed coming from the input interface are put into the alarm cache and also placed in the work area of the correlation analysis manager.
  • the analysis engine Analyze the alerts to be analyzed. If the alarm to be analyzed complies with the correlation rule, modify the attributes of the alarm, that is, to mark the alarm with the serial number of the root alarm as the root alarm serial number of the alarm, and map the modified alarm to the cache Corresponding alarm. After all the alarms to be analyzed in the work area have been analyzed, all the analyzed alarms in the cache are output as the analysis results.
  • dynamic analysis needs to analyze all the alarms in the cache every second, for the dynamic correlation analysis manager, in addition to the two interfaces of alarm input and result output, it also needs to provide an interface that can be triggered every second to control the alarms in the cache. Time of existence.
  • Applying the present invention in a transmission network management system can reduce the alarm network storm, facilitate the user to quickly locate the root cause alarm, eliminate the alarm, and provide future alarm diagnosis functions.
  • the knowledge base in the present invention is described in the alarm correlation language, it can also refer to externally provided
  • the interface can be opened to users, so that users can easily add, delete, and modify rules in the knowledge base, making correlation analysis more practical and accurate.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de traitement d'alerte dans un réseau de communications et un gestionnaire d'analyse de relativité. Le procédé de traitement d'alerte dans un réseau de communications consiste: a) à rechercher l'alerte à analyser; b) à analyser ladite alerte en fonction d'une règle de relativité; et c) à supprimer ou faire écran à une alerte de réseau certaine en fonction du résultat de l'analyse de relativité. Le gestionnaire d'analyse de relativité comprend une interface de réception destinée à recevoir l'alerte recherchée en vue d'une analyse, une interface de sortie permettant d'émettre le résultat de l'analyse, et un tampon de données d'alerte permettant de stocker l'alerte à analyser et le résultat de l'analyse ainsi qu'une solution de rechange permettant d'analyser l'alerte. Cette invention permet de réduire un orage de réseau d'alerte dans le système de gestion de réseau de transmission et permet à l'utilisateur de localiser rapidement la source d'alerte et d'éliminer cette alerte afin de permettre à une base d'exécuter une fonction de diagnostic d'alerte ultérieure.
PCT/CN2003/000884 2002-10-22 2003-10-21 Procede de traitement d'alerte dans un reseau de communications et gestionnaire d'analyse de relativite WO2004039004A1 (fr)

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Application Number Priority Date Filing Date Title
AU2003280535A AU2003280535A1 (en) 2002-10-22 2003-10-21 The method of processing alarm in the communicate network and a relativity analysis manager

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CN02145669.0 2002-10-22
CNB021456690A CN100450008C (zh) 2002-10-22 2002-10-22 通信网络告警的处理方法和相关性分析管理器

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US7760620B2 (en) 2006-01-23 2010-07-20 Huawei Technologies Co., Ltd. Method and apparatus for processing fault dependency of different levels of tandem connection monitoring
CN101908981A (zh) * 2010-09-03 2010-12-08 烽火通信科技股份有限公司 一种告警、性能数据屏蔽统一处理的方法
US8091573B2 (en) 2008-04-17 2012-01-10 Bp Corporation North America Inc. Pipeline intervention
CN108206757A (zh) * 2016-12-20 2018-06-26 中国移动通信集团广东有限公司 无线传输故障告警处理方法及装置

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CN100382509C (zh) * 2005-11-28 2008-04-16 华为技术有限公司 无线网络中故障定位的方法
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CN102377595B (zh) * 2010-08-20 2015-08-19 中兴通讯股份有限公司 一种故障告警方法、系统及装置
CN102571407A (zh) * 2010-12-30 2012-07-11 中国移动通信集团河北有限公司 告警关联分析方法及装置
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CN108234189B (zh) * 2016-12-22 2021-10-08 北京神州泰岳软件股份有限公司 一种告警数据处理方法和装置
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US7760620B2 (en) 2006-01-23 2010-07-20 Huawei Technologies Co., Ltd. Method and apparatus for processing fault dependency of different levels of tandem connection monitoring
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CN101908981A (zh) * 2010-09-03 2010-12-08 烽火通信科技股份有限公司 一种告警、性能数据屏蔽统一处理的方法
CN108206757A (zh) * 2016-12-20 2018-06-26 中国移动通信集团广东有限公司 无线传输故障告警处理方法及装置
CN108206757B (zh) * 2016-12-20 2020-12-18 中国移动通信集团广东有限公司 无线传输故障告警处理方法及装置

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