WO2007143943A1 - Procédé, système et dispositif réseau de maintenance centralisée de dispositifs multiples - Google Patents

Procédé, système et dispositif réseau de maintenance centralisée de dispositifs multiples Download PDF

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Publication number
WO2007143943A1
WO2007143943A1 PCT/CN2007/070076 CN2007070076W WO2007143943A1 WO 2007143943 A1 WO2007143943 A1 WO 2007143943A1 CN 2007070076 W CN2007070076 W CN 2007070076W WO 2007143943 A1 WO2007143943 A1 WO 2007143943A1
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Prior art keywords
alarm
centralized maintenance
alarms
association
maintenance center
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PCT/CN2007/070076
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English (en)
Chinese (zh)
Inventor
Xiaohong Gao
Huili Lu
Wentang Zhong
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Huawei Technologies Co., Ltd.
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Publication of WO2007143943A1 publication Critical patent/WO2007143943A1/fr

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    • 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

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to a multi-device centralized maintenance method, system, and network device.
  • the alarm of the network element device in the mobile communication network is an important observation object for network management and maintenance.
  • the alarm of the network element device directly reflects the health of the network element device. It is a barometer of the network element device and is a daily device operation. The main basis for maintenance.
  • the multi-device centralized maintenance system can manage each NE device separately or jointly for each NE device.
  • the multi-device centralized maintenance system is shown in Figure 1.
  • the multi-device centralized maintenance system includes: one or more system devices, an alarm collection system, and a centralized maintenance center.
  • the system device is the network element device, and the multiple system devices are the system device 1 to the system device N.
  • Each NE device is a complex system consisting of multiple boards.
  • the alarms of the NE devices and their boards are transmitted to the near-end maintenance terminal and the remote centralized maintenance center through the alarm collection system.
  • the alarm collection system can be a fixed physical entity or a fixed physical entity.
  • the centralized maintenance center receives each alarm information and displays each alarm information.
  • the embodiments of the present invention provide a multi-device centralized maintenance method, system, and network device, which can quickly determine valuable alarms by using predetermined alarm screening conditions, so that the centralized maintenance center can perform effective maintenance and management on each system device. Improve the maintainability of system equipment.
  • a multi-device centralized maintenance method provided by an embodiment of the present invention includes:
  • the alarm collection system transmits the alarms of each system device to the centralized maintenance center;
  • the centralized maintenance center filters the alarms it receives according to predetermined alarm screening conditions
  • the centralized maintenance center maintains system equipment based on the alarms obtained after screening.
  • the embodiment of the present invention further provides a multi-device centralized maintenance system, including: a plurality of system devices, an alarm collection system, and a centralized maintenance center, wherein the alarm collection system transmits the alarm of the system equipment to the centralized maintenance center,
  • the centralized maintenance center is also equipped with:
  • the alarm management unit filters the alarms received by the centralized maintenance center according to the predetermined alarm screening conditions, and transmits the alarms obtained after the screening to the centralized maintenance unit;
  • Centralized Maintenance Unit Maintains system equipment based on the alarms it receives.
  • the embodiment of the present invention further provides a network device, which is a centralized maintenance center in a multi-device centralized maintenance system, and the centralized maintenance center is further configured with:
  • the alarm management unit filters the alarms received by the centralized maintenance center according to the predetermined alarm screening conditions, and transmits the alarms obtained after the screening to the centralized maintenance unit;
  • Centralized maintenance unit Maintains system equipment based on the alarms it receives.
  • the embodiment of the present invention can enable the centralized maintenance center to quickly determine a valuable alarm by setting a predetermined alarm screening condition; thereby improving the system device by using the technical solution provided by the embodiment of the present invention.
  • the purpose of maintainability is the reason for maintaining the centralized maintenance center to quickly determine a valuable alarm by setting a predetermined alarm screening condition; thereby improving the system device by using the technical solution provided by the embodiment of the present invention. The purpose of maintainability.
  • Figure 1 is a schematic diagram of a multi-device centralized maintenance system
  • 2 is a schematic diagram of a multi-device centralized maintenance system according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram 1 of an alarm association tree according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of processing an alarm association tree engine according to an embodiment of the present invention.
  • FIG. 5 is a second schematic diagram of a logical association tree according to an embodiment of the present invention.
  • the alarm collection system transmits the alarms of the system devices to the centralized maintenance center, and the centralized maintenance center filters the alarms received according to the predetermined alarm screening conditions.
  • the system equipment is maintained according to the alarms obtained after the screening.
  • the alarms received by the centralized maintenance center in the multi-device centralized maintenance system need to be filtered, because the alarms of the system equipment are repeatedly reported, the alarm levels are different, and the alarms are generated between the alarms.
  • the filtered alarms can be presented hierarchically and sub-category.
  • the screening process of the alarm by the centralized maintenance center in the embodiment of the present invention may include two layers, namely, physical association analysis processing and logical association analysis processing. Through the physical association analysis process, the centralized maintenance center can filter out some redundant alarm information, and the logical maintenance analysis process enables the centralized maintenance center to quickly and accurately determine the primary alarm and the secondary alarm, so that fault location can be quickly and accurately performed. , enable the centralized maintenance center to effectively maintain and manage each system equipment.
  • the method and system provided by the embodiments of the present invention may be separately managed for one system device, or may be jointly managed for multiple system devices.
  • the alarm collection system collects alarms of each system device and transmits them to the centralized maintenance center.
  • the centralized maintenance center can display the alarms transmitted by the alarm collection system in the form of alarm sequences.
  • the alarm sequence transmitted to the centralized maintenance center needs to be processed through physical association analysis first.
  • the function of physical association analysis processing is implemented by the alarm management unit.
  • the physical association of alarms is characterized by: The association of alarms does not depend on the network model, and it is not necessary to understand the interdependencies between alarms. Only the parameters, attributes, and categories of alarms are analyzed, so that the centralized maintenance center can Provide different alarm observations Latitude, effectively grasp the operation of each system equipment.
  • the methods of physical association analysis mainly include: alarm compression analysis, alarm filtering analysis, alarm suppression analysis, alarm counting analysis, alarm summary analysis, alarm thinning analysis and alarm inter-day correlation analysis, that is, the function of the alarm management unit is mainly
  • the alarm compression analysis module, the ignore alarm analysis module, the replacement alarm analysis module and the alarm summary analysis module are implemented, wherein the ignore alarm analysis module mainly includes: an alarm filtering analysis sub-module, an alarm suppression analysis sub-module, and a diurnal correlation analysis sub-module.
  • the replacement alarm analysis module mainly includes: an alarm count analysis sub-module and an alarm refinement analysis sub-module.
  • ⁇ is the number of occurrences, such as frame out-of-step alarms, etc.
  • the trunk circuit is frequently flashed. ⁇ Although the flashing time is short, it will affect the service. Therefore, the alarm level should be reported and upgraded.
  • Alarm summary analysis Classify alarms, critical alarms [Al, A2 Provide dimensions for observation according to alarm network management type, B, C] Classification
  • the centralized maintenance center effectively reduces the redundant information of the alarm through physical association analysis, and can classify and collect the alarms so that the alarm information can be clearly and systematically displayed in the centralized maintenance center.
  • the centralized maintenance center needs to perform logical association analysis on the alarm information processed by the physical association analysis.
  • the logical association analysis of the alarm can perform in-depth alarm correlation analysis based on the physical association analysis to obtain the root node alarm in each alarm. That is, the main alarm, thereby determining the root cause of the failure of the system equipment.
  • Logical association analysis can be implemented by generating an alarm correlation tree.
  • the centralized maintenance center can generate an alarm correlation tree based on the initial association analysis information of the alarm and the special association analysis information of the alarm.
  • the centralized maintenance center can set the initial association analysis information of the alarm according to the logical relationship between the different alarms based on the correlation between the diurnal correlation and the parameter correlation.
  • the initial association analysis information is stored in the initial logical association storage module.
  • the initial association analysis information of the alarm in the expert knowledge base mainly includes: an alarm identifier, an associated alarm identifier, an upper limit of the alarm time, a lower limit of the alarm time, a parameter correspondence relationship of the interrelated alarm, and a special association analysis instruction information.
  • the initial association analysis information of the alarm in the expert knowledge base may also include: information such as the cause of the alarm, the recovery suggestion, and the impact of the alarm.
  • the alarm represented by the alarm identifier and the alarm represented by the associated alarm identifier meet the upper limit of the alarm correlation and the lower limit of the alarm correlation between the alarm generation, and the parameters of the two alarms satisfy the parameter correspondence relationship, that is, It can be determined that the two alarms are interrelated alarms.
  • the special association analysis indication information is used to indicate that the alarm represented by the alarm identifier may also have an alarm with which it has a deeper association.
  • the parameter correspondence of the interrelated alarms may be an equal relationship between the parameters of the two interrelated alarms, or may be a calculation relationship between the parameters of the two interrelated alarms.
  • Table 2 is an example of initial association analysis information in a specific expert knowledge base.
  • Parameter 1 to parameter 7 in Table 2 are the parameters corresponding to the alarms associated with each other, and the special association ID
  • alarm 1 has a logical relationship with alarm 2, alarm 3, and alarm 5, respectively, with alarm 1 and alarm 2
  • Alarm 1 and Alarm 2 respectively include 4 parameters, and parameter 1 of alarm 1 is equal to parameter 1 of alarm 2, parameter 2 of alarm 1 is equal to parameter 2 of alarm 2, parameter 3 of alarm 1 and parameter 3 of alarm 2 Equal, parameter 4 of alarm 1 is equal to parameter 4 of alarm 2.
  • the upper limit of the correlation between alarm 1 and alarm 2 and the lower limit of the correlation between the two are both 1, that is, alarm 1 and alarm 2
  • the generation should be the same.
  • the alarm correlation tree can be used to generate at least one alarm association tree for the alarms after the physical association analysis.
  • the initial association analysis information and the alarm correlation tree analysis engine are relatively independent in the centralized maintenance center.
  • the alarm association tree generated by the initial association analysis information may be a tree with only one root node alarm, that is, the alarm has no logical relationship with the alarm, and the alarm does not trigger other alarms. It is called an independent node.
  • External interface analysis such as MSC's office route signaling link correlation analysis, office circuit correlation analysis;
  • Alarm system association analysis including the conversion relationship between optical path and voice channel
  • Office route, circuit/link/relay group of the office
  • Relay devices are attributes of this office direction, and correlation analysis is required.
  • the centralized maintenance center may also set a special association analysis letter of the alarm according to the logical association relationship based on data mining between different alarms.
  • the special association analysis information is stored in a special logical association storage module. Initial association analysis information and special association analysis information are important components of the expert knowledge base.
  • the special association analysis information mainly includes: an alarm identifier, an associated alarm identifier, a correlation table number, a system configuration table name, an input parameter, an input field, an output parameter, an output field, and the like.
  • the special association analysis is based on the formulas and algorithms defined in the expert knowledge base, and the relationship between the alarm parameters in the system configuration library is judged and judged.
  • the number of association tables indicates the special association analysis of the alarms. ⁇ , the number of system configuration tables that need to be queried.
  • the input field and the output field are generally algorithm formulas, and the input parameters indicate their corresponding alarm parameters. For example, if the input parameter is N, it indicates the Nth parameter of the corresponding alarm.
  • the output parameter indicates its corresponding alarm parameter, such as the output parameter is M.
  • the input parameters need to be substituted into the input field and queried in the table corresponding to the system configuration table name.
  • the output parameters need to be substituted into the output field.
  • the two alarm identifiers are represented.
  • the corresponding alarm has a special alarm relationship. If the output field defaults, it indicates the record and output parameters obtained when the input field query results.
  • the alarms corresponding to the two alarm identifiers have a special alarm association relationship. If there is only a field name in the output field, it means the content and output parameter in the field name of the output field in the record obtained by the input field query result.
  • the alarms corresponding to the two alarm identifiers have a special alarm association relationship.
  • Table 3 is an example of special association analysis information in a specific expert knowledge base. The following describes the process of special alarm correlation analysis using special association analysis information by using Table 3 as an example.
  • each record represents a pair of alarms that need to determine the special association relationship.
  • the alarm and alarm ID with the alarm ID 471 is 302.
  • the child node of the alarm that is, the 471 alarm and the 302 alarm have a special relationship.
  • the alarm correlation tree is used to analyze the alarms generated by the physical association analysis to generate at least one alarm association tree.
  • the special association analysis information and the alarm correlation tree analysis engine are relatively independent in the centralized maintenance center.
  • the alarm association relationship generated by the initial association analysis information and the special association analysis information according to the embodiment of the present invention The tree can be a tree with only one root node alarm. That is, the root node alarm does not have an alarm related to it. The root node alarm does not raise other alarms. Therefore, this root node can be called an independent node.
  • FIG. 3 is a specific example of an alarm correlation tree obtained by logical correlation analysis.
  • alarm 2 is the root node alarm
  • the alarms associated with alarm 2 are alarm 21 and alarm 22, that is, alarm 2 raises alarm 21 and alarm 22.
  • the alarms associated with the alarm 21 are alarm 211 and alarm 212, that is, the alarm 21 triggers the alarm 211 and the alarm 212.
  • the generated alarm association tree may be transmitted to the centralized maintenance unit, or the root node alarm may be directly transmitted to the centralized maintenance unit, so that the centralized maintenance unit can quickly and accurately determine the fault according to the root node alarm or the alarm association tree, so that The fault is quickly eliminated.
  • the embodiment of the present invention introduces a virtual node.
  • the concept is such that the logical association analysis module 1 and the logical association analysis module 2 can generate an alarm association tree according to the expert knowledge base through the alarm correlation relationship tree analysis.
  • the virtual node is composed of virtual alarms.
  • the virtual alarm is derived from normal alarms. It has virtual alarm identification information such as virtual alarm ID, and the virtual alarm ID is in the normal alarm ID.
  • the virtual alarm is obtained by normal alarm analysis, such as an office route relay E1 fault.
  • the 0-layer virtual root node refers to the alarm that the user customizes according to his own experience or expert knowledge base.
  • Layer 1 is the order of all alarm IDs.
  • Layer 2 is the alarm ID that may be caused by Layer 1 alarms.
  • Layer 3 is the parameter description, inter-description and other related descriptions of the alarms associated with each other.
  • the content of the layer is the judgment condition of the interrelated alarm, and the independent alarm is distributed in 1
  • the expert knowledge base of the embodiment of the present invention can be divided into two parts, one part is the initial association analysis information, and the other part is the special association analysis information, and these two parts are the core of the expert knowledge base.
  • the information in the expert knowledge base can be determined by the system experts through the rigorous analysis and verification of the system alarms, and is an important basis for the logical correlation analysis of the alarms.
  • the initial association information of the alarm defines the relationship between the alarms and alarm parameters between the two different alarms.
  • the special association analysis information is that the parameter relationship between the two alarms is complex and cannot be expressed by a simple algorithm, but needs to be supported by the configuration database of the system.
  • the special association analysis information is a kind of information established by the data mining method.
  • the special association analysis information analyzes the inter-table relationship of the parameters of the system configuration database, and can obtain an alarm-initiated relationship between the two alarms.
  • the logical association analysis of the alarms generated by the system devices according to the expert knowledge base is performed, and the alarms are added to the alarm association tree for hierarchical display, and the alarms of each system device can be set up as one or more alarm associations.
  • the alarm of the root node of each alarm association tree is the primary alarm.
  • the alarm that is logically related to the alarm of the root node should be the branch alarm or leaf alarm under the alarm of the root node.
  • the centralized maintenance center may not alarm the leaf node. For any processing, only the root node alarms are processed, only the root alarms on the root node are restored, and the leaf node alarms are naturally restored, so that the centralized maintenance center can quickly and accurately find the faults and provide effective recovery. It is recommended to troubleshoot and restore the device.
  • the expert knowledge base can be modified and updated, and different expert knowledge bases can be customized according to different systems. [93] Below with reference to Figure 4
  • step 400 n alarms in the alarm sequence An are required: Alarm A1 to Alarm An generates an alarm correlation tree. Set the initial value of i to 0 and the initial value of k to 0. k
  • Step 410 determining whether i is less than n, if not less than, to step 411
  • the process of generating an alarm association tree ends, and the generated alarm association tree is output.
  • step 410 if i is less than n, to step 420, the alarm sequence An
  • An alarm is generated that has not been processed by the alarm correlation tree.
  • step 430 according to the expert knowledge base from the alarm sequence An
  • the alarms that may be logically associated with the alarm are selected, and the associated alarm series Bm is established according to the alarms that can be logically associated, and the sequence includes m alarms, that is, alarm B1 to alarm Bm.
  • step 441 If m is 0, go to step 441, and the alarm selected from An is used as an independent node. In step 442, the value of i is increased by 1. Go to step 410.
  • step 440 if the value of m is not 0, to step 450, it is determined whether j is less than m
  • step 451 it is determined whether the value of k is 0, that is, whether the branch node of the alarm correlation tree exists, and if the value of k is 0.
  • step 441 indicating that there is no branch node in the alarm correlation tree, go to step 441, and will be from An.
  • step 442 the value of i is increased by 1. Go to step 410.
  • step 451 if the value of k is not 0
  • step 442 Indicates that there is a branch node in the alarm association tree. You do not need to create an independent node. In step 442, the value of i is increased by 1. Go to step 410.
  • step 450 if the value of j is less than m, to step 460, the associated alarm sequence Bm
  • step 490 it is determined whether the alarm parameters of the two alarms and the alarm time meet the relevant association conditions. If they are all satisfied, you can go directly to step 490 to determine whether the value of i is 0. If the value of i is 0, indicating that the root node has not been created yet, to step 491, from An
  • the alarm selected in the alarm sequence is set to the root node, and the alarm selected from Bm is set as the branch node, and the value of k is increased by 1. Go to step 493 and the value of j is increased by 1. Go to step 450.
  • step 490 if the value of i is not 0
  • the alarm selected in the sequence is set to the branch node, and the value of k is increased by 1. Go to step 493, j
  • the value of the increase is 1. Go to step 450.
  • step 481 determines the An in the expert knowledge base.
  • step 450 If the special association analysis indication information is set in the initial association analysis information corresponding to the alarm selected in the sequence, if the special association analysis indication information is not set, the value of j is increased by 1 in step 493. Go to step 450.
  • step 481 if special association analysis indication information is set, go to step 482
  • step 490 If it is determined that there is a special association analysis, step 490; if it is determined that there is no special association analysis, the value of j is increased by 1 to step 493. Go to step 450.
  • the alarm sequence An can be
  • the alarms are grouped into one or more alarm association trees.
  • the following describes an alarm association tree established in the embodiment of the present invention by using a specific alarm sequence as an example and in conjunction with Table 2.
  • the centralized maintenance center selects alarm 1 from the alarm sequence. According to Table 2, it is determined that alarm 2, alarm 3, and alarm 5 in the alarm sequence may be logically related to alarm 1. [109] The centralized maintenance center determines the alarm according to the parameters in Table 2, the upper limit of the alarm, the lower limit of the alarm, the alarm 1, the alarm 2, the alarm 3, the alarm 5, the alarm, the alarm 2, the alarm 3, and the alarm 5 Alarm 1 has a logical relationship ⁇ , and alarm 2, alarm 3, and alarm 5 are used as leaf nodes of alarm 1. Since alarm 1 and alarm 4 in Table 2 do not have a logical association relationship, alarm 4 is an independent node, that is, alarm 4 is A logical association tree with only root node alarms. Alarm 2, Alarm 2, Alarm 3, Alarm 4, and Alarm 2 generate two logical relationship trees as shown in Figure 5.
  • the embodiment of the present invention enables a centralized maintenance center to quickly determine a valuable alarm by setting a predetermined alarm screening condition;
  • the predetermined alarm screening condition may be physical association information, such as repeated alarm compression conditions, ignoring alarm conditions, and alarms.
  • the replacement conditions and alarm summary conditions not only avoid unnecessary redundant alarm information, but also enable the centralized maintenance center to present the alarm information clearly and systematically, thus providing different alarm observation latitudes and effectively grasping the system equipment.
  • the operation of the predetermined alarm screening condition may also be logical association information.
  • the logical association information of the embodiment of the present invention introduces the initial association analysis information of the alarm and the special association analysis information of the alarm, and further mines different alarms by using the alarm special association analysis information.
  • the logical association between the alarms enables the centralized maintenance center to set up the alarms it receives as a logical association tree, so that the centralized maintenance center can quickly determine the root cause of the alarm and avoid the correlation with the root cause alarm.
  • the process of the alarms enables the centralized maintenance center to quickly and accurately locate the faults, so that the centralized maintenance center can perform effective maintenance and management on each system equipment. Therefore, the technical solutions provided by the embodiments of the present invention improve the maintainability of the system equipment. Sex

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

Abstract

Procédé, système et dispositif réseau de maintenance centralisée de dispositifs multiples, le procédé comprenant les étapes suivantes : un système de collecte d'alertes transmet les alertes de chaque dispositif du système à un centre de maintenance centralisée ; le centre de maintenance centralisée filtre les alertes reçues en fonction des conditions prédéterminées de filtrage des alertes ; le centre de maintenance centralisée assure la maintenance des dispositifs du système en fonction des alertes filtrées. Le fait de définir des conditions prédéterminées de filtrage des alertes conduit le centre de maintenance centralisée à déterminer rapidement les alertes importantes. Les conditions prédéterminées de filtrage des alertes peuvent être divisées en niveaux multiples, notamment des informations de relations physiques pertinentes, des informations d'analyse initiale de pertinence et des informations d'analyse de pertinence d'alertes spéciales.
PCT/CN2007/070076 2006-06-01 2007-06-01 Procédé, système et dispositif réseau de maintenance centralisée de dispositifs multiples WO2007143943A1 (fr)

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CNB2006100838300A CN100479385C (zh) 2006-06-01 2006-06-01 一种多设备集中维护方法和系统

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