JP2012169958A - Realtime quality analysis device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a realtime quality analysis device capable of analyzing the quality of network and the quality of service in realtime at low cost even when a network scale is enlarged.SOLUTION: A quality analysis device produces an analysis rule corresponding to network resources, has an analysis data base holding analysis data required for monitoring the analysis rule, and monitors the analysis data according to the analysis rule.

Description

  The present invention relates to a real-time quality analysis apparatus and method for collecting quality information related to a service network and grasping the quality state of the network in real time.

  In order to grasp the quality state of the network, a technique for collecting and analyzing quality information related to the service network is used. However, in order to acquire quality information of a network composed of a plurality of network devices, it is necessary to collect enormous data, and a system capable of processing such enormous data is required.

When these quality analysis systems analyze the quality status on a service network, they are realized by acquiring quality data held by multiple network devices, servers, and terminals via an interface as shown in FIG. is doing. However, when these networks are expanded, that is, when the data is enormous, real-time analysis of the entire network cannot be realized. In order to perform real-time analysis, it is not only necessary to enhance the functionality of a database (hardware) that can process enormous amounts of data, but it also takes time to develop analysis function design, etc. Arise. For this reason, OLAP (Online
Analytical processing) and distributed processing systems (such as Hadoop) are widely used.

JP 2003-233686 A JP 2010-108156 A

  However, OLAP has high analysis processing and real-time analysis performance of a hierarchical structure (eg, network topology), but has a drawback of requiring high-performance hardware (H / W) when the amount of data is enormous. . In addition, the distributed processing approach is suitable for batch processing, but is similarly not suitable for real-time processing, and also makes hierarchical analysis difficult.

  On the other hand, quality analysis of networks and services not only requires real-time performance, but also requires that analysis processing functions according to network quality conditions be constructed at low cost.

  Accordingly, an object of the present invention is to provide a real-time quality analysis apparatus and method capable of performing quality analysis of networks and services in real time and at low cost even when the scale of the network is increased.

  The present invention creates an analysis rule according to the network and service status, aggregates data (quality data) generated in the network and service operation business related to the communication business according to the analysis rule, and stores the data in a database Can be changed dynamically, reducing the amount of data required for analysis and enabling real-time quality analysis.

  In order to achieve the above object, a network quality analysis apparatus according to the present invention holds an analysis rule design function means for creating an analysis rule corresponding to a network resource and analysis data necessary for monitoring the analysis rule. An analysis database; and monitoring means for monitoring the analysis data according to the analysis rule.

In addition, a quality data management database that holds quality data held by an external system and a network device, a resource management database that holds network resource information, and a quality threshold value of an index having a relationship with the resource information and the resource, A design function means for extracting from the resource management database;
The analysis rule design function means creates an analysis rule corresponding to the resource information and the quality threshold, the analysis database acquires the analysis data from the quality data management database, and the monitoring means It is also preferable that the analysis data is monitored according to the analysis rule and compared with the quality threshold.

  It is also preferable to further comprise conversion function means for converting the quality data format into the quality data management database format.

  The design function means preferably further includes means for manually inputting either or both of the resource information and the quality threshold.

  The analysis rule design function unit further includes a function of setting analysis data necessary for monitoring the analysis rule and instructing the analysis database. The analysis database is used for analysis based on the instruction. It is also preferable to acquire data.

  The analysis rule is composed of a basic rule, an abnormal rule, and a normal rule, and the monitoring means first performs monitoring according to the basic rule, and detects an abnormal rule when a quality abnormality that violates the basic rule is detected. It is also preferable to add monitoring according to the normal rule when the quality abnormality is resolved when monitoring according to is added.

  Further, the monitoring means notifies the analysis rule design function means that monitoring according to the abnormal rule or the normal rule is added, and the analysis rule design function means includes the abnormal rule and the normal condition It is also preferable to instruct the analysis database to add or delete analysis data that is necessary or unnecessary for monitoring rules.

  Further, it is preferable that an analysis control management database in which analysis rule data defined by a user is set is further provided, and the analysis rule design function unit creates the analysis rule based on the analysis rule data.

  In order to achieve the above object, a network quality analysis method according to the present invention comprises the steps of creating an analysis rule corresponding to a network resource, holding analysis data necessary for monitoring the analysis rule, Monitoring the analysis data according to the analysis rule.

  According to the present invention, data stored in a database can be dynamically changed, the amount of data required for analysis is reduced, and quality analysis can be performed in real time without using a high-performance H / W.

The operation | movement outline | summary of the quality analysis system in a prior art is shown. 1 shows an overall system configuration of a quality analysis apparatus of the present invention. The operation | movement flowchart of the automatic design function of a design function part is shown. An outline of the analysis rule is shown. An example of analysis rule data defined by the user is shown. An example of rule definition created by the analysis rule design function unit is shown. The operation | movement flowchart of a quality analysis function is shown. The system configuration in this use example is shown. The resource management database in this system configuration is shown.

  The best mode for carrying out the present invention will be described in detail below with reference to the drawings. FIG. 2 shows the overall system configuration of the quality analysis apparatus of the present invention. This apparatus includes a data collection function unit 1, a database function unit 2, and an analysis control function unit 3.

  The data collection function unit 1 includes a conversion function unit 11. The data collection function unit 1 extracts quality data held by the external system and the network device via the interface. The conversion function unit 11 is a format for storing various extracted quality data formats (for example, CSV file, SNMP, XML file, TXT file, database format) in the quality data management database unit 23 of the database function unit 2. Data conversion is performed.

  The database function unit 2 includes a resource management database 21, an analysis control management database 22, a quality data management database 23, and an analysis database 24. The resource management database 21 stores resource-related information related to networks and services such as network information (network device configuration and network line information), application information, service information, and customer information. The analysis control database 22 stores data related to analysis control such as analysis rule data defined by the user in order to realize dynamic analysis rules. The quality data management database 23 has a function of storing information converted by the conversion function unit 11 of the data collection function unit 1 as data. The analysis database 24 has a function of storing data (analysis data) necessary for quality analysis.

  The analysis control management unit 3 includes a design function unit 31 for defining an analysis target, an analysis rule design function unit 32 for defining an analysis rule based on design information, and a monitoring function unit for analyzing information on the analysis database 24 33.

The design function unit 31 can automatically search and register resource information (service name, network device name, etc.) stored in the resource management database 21 and quality threshold information of an index having relevance on the resource. it can. FIG. 3 shows an operation flowchart of the automatic design function of the design function unit.
(S1) Resource management database 21 search: Resource information stored in the resource management database 21 is searched. In addition, quality threshold information of an index having relevance on the resource is searched.
(S2) Automatic setting? : To automatically set the quality threshold value, the process proceeds to S3.
(S3) Index designation: A quality threshold for the index is input. For example, an operator inputs from the screen.
(S4) Rule definition: For rule definition, the resource information and the quality threshold value of the indicator are passed to the analysis rule definition function unit 32.

  In addition to the automatic design described above, registration by manual design is also possible. In this case, when resource information is input by the user, an inquiry is made to the resource management database 21 using that information as a key. If there is a quality threshold value of an index having resource relevance in the resource management database 21, the information is extracted and registered as a quality threshold value. Also in this case, the quality threshold value can be manually input by the operator. Note that an analysis rule is defined for one or all manually selected by the user from the extracted resource information and quality threshold.

  The analysis rule design function unit 32 has a function of creating an analysis rule using the analysis rule data stored in the analysis control database 22 based on the resource information and the quality threshold extracted by the design function unit 31. Further, the analysis rule design function unit 32 has a function of setting data information to be analyzed in the analysis database 24 in order to perform quality analysis according to the analysis rule defined by the analysis rule design function unit 32. As a result, an instruction to add analysis data necessary for analyzing the rule is transmitted, and the analysis database 24 acquires the analysis data from the quality data management database 23. When rule analysis is no longer required, an instruction to delete unnecessary analysis data is transmitted and deleted from the analysis database 24.

  The monitoring function unit 33 monitors the analysis data in the analysis database 24 and compares it with a rule-defined threshold value. When a quality abnormality exceeding the threshold is detected, feedback is performed to the analysis rule design function unit 32 in order to change to an abnormal rule.

  FIG. 4 shows an outline of the analysis rule. The analysis rules are implemented with basic rules, abnormal rules, and normal rules. The basic rule sets the initial value of the rule. When the monitoring function unit 33 detects an abnormality that violates the basic rule, an abnormal rule is added (a plurality of abnormal rules can be defined). When the abnormality is resolved, a normal rule is added.

  FIG. 5 shows an example of analysis rule data defined by the user. In this analysis rule data, the interface of router A (IF_1) is monitored as resource information, and when an alert is generated, monitoring of the interface (IF_1) of the connection destination router is added. Delete the monitoring of IF_1 of the connection destination router.

  FIG. 6 shows a rule definition example created by the analysis rule design function unit. FIG. 6 shows a rule definition created from the rule data of FIG. The basic rule monitors whether or not the number of packet loss of IF_1 of router A exceeds a threshold value. The abnormal rule monitors whether the number of packet loss of IF_1 of the connection destination router B of IF_1 of the router A exceeds a threshold value. The normal time rule stops monitoring of IF_1 of the connection destination router B of IF_1 of the router A. Here, if an abnormality is detected in the number of packet losses, the abnormality rule is applied, and the number of packet losses in IF_1 of the router B connected to the router A is monitored. At that time, an analysis data addition instruction is transmitted to the analysis database 24, and the number of packet loss of IF_1 of the router B is added. When the number of packet losses for a certain period of time is a normal value, the normal rule is applied, and monitoring of IF_1 of the router B that has been added is stopped. At this time, an instruction to delete analysis data is transmitted to the analysis database 24, and the number of packet loss of IF_1 of the router B is deleted.

FIG. 7 shows an operation flowchart of the quality analysis function.
(S1) Start: The operation of the quality analysis function is started.
(S2) Rule reading: The analysis rule design function unit 32 specifies an object to be analyzed based on the rules set above.
(S3) Analysis data creation instruction: The analysis rule setting function unit 32 instructs the analysis database 24 to add analysis data.
(S4) Analysis data creation: The analysis database 24 acquires quality information from the quality data management database 23 and stores it as analysis data in its own database.
(S5) Start of monitoring: The monitoring function unit 33 monitors the analysis data in the analysis database 24 and compares it with a rule-defined threshold value.
(S6) Alert detection: When the quality abnormality is detected, the monitoring function unit 33 performs feedback to the analysis rule design function unit 32 in order to change to the abnormal rule.

The operation when an abnormality is detected is shown below.
(S2): The analysis rule design function unit 32 receives the above feedback, reads the abnormal rule, and specifies the object to be analyzed.
(S3): The analysis rule design function unit 32 gives an instruction to add the information to the analysis database 24.
(S4): The analysis database 24 acquires quality information from the quality data management database 23 in the same manner as described above.
(S5) The monitoring function unit 33 starts monitoring the added quality information.

  An example of use of the quality analysis apparatus of the present invention will be described. FIG. 8 shows a system configuration in this usage example. FIG. 9 shows a resource management database in this system configuration. In this example, service A is provided between user A and user B, service A is used by user A and user B, and service A is provided by router A and router B.

  When the design function unit 31 automatically creates a rule, or when the user inputs the interface_1 (IF_1) of the router A to the design function unit 31 as resource information, the design function unit 31 searches the resource management database 21. Then, the packet loss number of the router A is extracted as an index having relevance in terms of resources. The quality threshold of the indicator is defined automatically or manually. Analysis rule data defined by the user is set in the analysis control management database 22. From these, the analysis rule design function unit 32 is set to monitor IF_1 of the router A as a basic rule, and is set to monitor a device (adjacent router) related to the router A as a rule at the time of abnormality. As a normal rule, it is set to cancel monitoring of a device (adjacent router) associated with the router A. From the quality data management database 23, the packet loss number of IF_1 of the router A is stored in the analysis database 24.

  With this setting, the monitoring function unit 33 monitors the number of packet loss of IF_1 of the router A and compares it with the set threshold value. When it is detected from the monitoring result that the threshold is exceeded, the rule at the time of abnormality is applied, the router B which is an adjacent router is also added as a monitoring target, and the packet loss number of the router B is dynamically added to the analysis database 24 Let Further, when the monitoring result of the router A becomes normal (the packet loss count returns within the threshold), the normal rule is applied and the router B is excluded from the monitoring target. Further, the packet loss number of the router B is deleted from the analysis database 24.

  Thus, the quality analysis apparatus of the present invention dynamically moves data to be analyzed while utilizing resource information. In addition, in the analysis rule, multi-dimensional hierarchical analysis is realized by defining information associated with resource information such as service units, related regions, and the same model as well as adjacent associations.

  Moreover, all the embodiments described above are illustrative of the present invention and are not intended to limit the present invention, and the present invention can be implemented in other various modifications and changes. Therefore, the scope of the present invention is defined only by the claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Data collection function part 2 Database function part 3 Analysis control function part 11 Conversion function part 21 Resource management database 22 Analysis control management database 23 Quality data management database 24 Analysis database 31 Design function part 32 Analysis rule design function part 33 Monitoring function part

Claims (9)

Analysis rule design function means for creating analysis rules corresponding to network resources,
An analysis database holding analysis data necessary for monitoring the analysis rules;
A network quality analysis apparatus comprising: monitoring means for monitoring the analysis data according to the analysis rule. A quality data management database for holding quality data held by external systems and network devices;
A resource management database that holds network resource information;
Design function means for extracting from the resource management database a quality threshold value of the resource information and an index associated with the resource;
Further comprising
The analysis rule design function means creates an analysis rule corresponding to the resource information and the quality threshold,
The analysis database acquires the analysis data from the quality data management database,
The quality analysis apparatus according to claim 1, wherein the monitoring unit monitors the analysis data according to the analysis rule and compares the data with the quality threshold value.   The quality analysis apparatus according to claim 2, further comprising conversion function means for converting the format of the quality data into the format of the quality data management database.   The quality analysis apparatus according to claim 2, wherein the design function unit further includes a unit that manually inputs one or both of the resource information and the quality threshold value.   The analysis rule design function unit further includes a function of setting analysis data necessary for monitoring the analysis rule and instructing the analysis database, and the analysis database stores analysis data based on the instruction. The quality analyzer according to claim 1, wherein the quality analyzer is acquired. The analysis rules are composed of basic rules, abnormal rules, and normal rules,
The monitoring means first performs monitoring according to the basic rule, and when a quality abnormality contrary to the basic rule is detected, monitoring according to the abnormal rule is added, and when the quality abnormality is resolved, monitoring according to the normal rule is performed. The quality analysis apparatus according to claim 1, wherein the quality analysis apparatus is added. The monitoring means notifies the analysis rule design function means that monitoring according to the abnormal rule or the normal rule has been added,
The analysis rule design function means instructs the analysis database to add or delete analysis data that is necessary or unnecessary for monitoring the abnormal rule and the normal rule. Item 7. The quality analysis apparatus according to any one of Items 1 to 6.   An analysis control management database in which analysis rule data defined by a user is set is further provided, and the analysis rule design function unit creates the analysis rule based on the analysis rule data. 8. The quality analysis apparatus according to any one of items 7. Creating analysis rules for network resources;
Holding analysis data necessary to monitor the analysis rules;
Monitoring the analysis data in accordance with the analysis rule.

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