CN102790699A - Method and device for analysis of network service quality - Google Patents
Method and device for analysis of network service quality Download PDFInfo
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Abstract
The invention discloses a method and a device for analysis of network service quality. The method includes: building a network service quality evaluation model of a network system in a network management system in advance, and further configuring resources needing to be monitored in the evaluation model; obtaining scores and grades of the network service quality by periodically acquiring performance data of the resources configured in the evaluation model and according to computation rules defined in the evaluation model; and generating a network service quality report and sending warning messages according to preset policy rules, so that network management staff can purposefully improve network configuration, and network service quality requirements are met.
Description
Technical field
The present invention relates to data communication technology field, relate in particular to analytical method and the device of a kind of network management system network service quality.
Background technology
At present, various network management systems are kept watch on for the collection that the management of network service quality is confined to serve related performance data mostly, realize through the acquisition function of network management system correlated performance data often.These functions are specially collects, shows, gathers and threshold value alarm etc. the data of each discrete device.Yet; In a network system; The performance data of the network equipment normally magnanimity occurs; But present network management system is to the evaluation means of the performance data shortage globality of the network equipment, and the user is difficult to make the accurate evaluation to certain service quality situation in the network according to the data of these discrete device.In the network environment of the especially current various data centers of most of network environments, often disposed a large amount of services; Thereby the webmaster personnel need to make the operation conditions of these services the normal operation of evaluation assurance network environment promptly and accurately; And then network environment optimized timely, to estimate accurately be the difficult problem that the webmaster personnel face jointly yet make for these various services.
Summary of the invention
In view of this, the present invention provides a kind of analytical method and device of network service quality.Through the present invention, can weigh out the situation of network service quality exactly, and then realize active management according to predetermined strategy.
For realizing the object of the invention, implementation of the present invention is specific as follows:
A kind of analytical method of network service quality is applied to network management system the network system of its management is carried out the analysis of network service quality, and wherein, said method comprises the steps:
The present invention provides a kind of device of network service quality analysis simultaneously; Said device is applied to the network service quality of phase-split network system; Said network system includes the network management system and the network equipment that receives this management system management at least; Said device promptly is integrated in the network management system, also can be used as the existence that is separated of independent device and said network management system, and wherein said device comprises:
The model configuration module is used for the network service quality evaluation model of pre-configured network system, and in said evaluation model further configuration need the resource monitored;
Data acquisition module is used for periodically gathering the performance data of evaluation model resources configured and calculates the scoring and the grade of this network service quality according to the calculative strategy that defines in the said evaluation model;
Data processing module is used for producing service quality report and sending a warning message according to predetermined policing rule.
Compare with existing technical scheme; The present invention through define grid service quality evaluation model in advance so that the network service quality in the network system is estimated quantitatively; And then the performance bottleneck of fixer network service, thereby improve network service quality, guarantee the normal operation of network environment; And link with other assembly through Trap, realize active management network system.
Description of drawings
Fig. 1 is the analytical method flow chart of network service quality of the present invention.
Fig. 2 is a network service quality evaluation model sketch map of the present invention.
Fig. 3 is the analytical equipment structural representation of network service quality of the present invention.
Embodiment
Because traditional SLA (Service-Level Agreement, service-level agreement) is main to be main with the performance index that the single equipment in the network system is provided, such as time-delay, shake etc.This evaluation for a certain specific performance properties index (like voice quality) is useful, but traditional SLA can not expand to the overall merit of carrying out a plurality of performance index on a plurality of network equipments simultaneously.In addition; Also lack incidence relation between each performance designation data that it provided; Can not let the webmaster personnel compare between each performance index, reference and contrast, therefrom finding out influences the most serious index of network service quality, and then the performance bottleneck that the location influence network service quality belongs to; Therefore, traditional SLA lacks the ability of network service quality comprehensive evaluation more widely.And management forums such as TMF also proposed some network service quality were carried out the notion of overall merit, but all lacked concrete realization support.
Therefore; The present invention proposes a kind of solution to the problems described above and device; Through the present invention, the various performance datas that the webmaster personnel can relate to network service quality are as required in time calculated, analyze, are estimated, and finally draw the scoring and the grade of this network service quality.And further the alarm of definition service and fault are regular on this basis, and automatic generation Trap in time notifies webmaster personnel or other Service Component to handle when network service quality alarm occurs or breaks rules.
In order to realize the object of the invention; The core concept that the present invention adopts is: said network management system is set up the network service quality evaluation model of network system in advance; Further configuration needs the resource of monitoring in said evaluation model; Through periodically gathering the performance data of resources configured in the evaluation model and drawing the scoring and the grade of this network service quality according to the computation rule that defines in the said evaluation model; Produce the network service quality report and send a warning message according to predetermined policing rule, and then make the webmaster personnel can on purpose improve network configuration, thereby satisfy the network service quality requirement.
For making technical scheme of the present invention clear more and clear, specify below in conjunction with the specific embodiment of the invention.As shown in Figure 2, be the analytical method flow chart of network service quality of the present invention.Wherein, said method is applied to network management system is carried out network service quality to the network system of its management analysis and evaluation.Said method comprises the steps:
For make this step clearer, understand, before introducing this step in detail, introduce earlier and severally realize relevant notion with the present invention.
(1) resource
In the present invention; Resource specifically comprises entity object or the object logic that network service quality need be paid close attention to; It derives from the logic entity of other Service Component in physical entity or the network management system in the network system, like equipment, NTA instance, interface and link or the like.
（2）KPI
KPI (Key Performance Indicator; Key Performance Indicator) is meant a certain operational indicator metric of the specific resources that each Service Component in the network management system obtains according to the calculation rule of predefined; Be specially the evaluation of estimate of a certain specific indexes performance data of resource in the network system, like resource performance indexs such as equipment cpu busy percentage, interface rates.
（3）KQI
KQI (Key Quality Indicators; Key Quality Indicator), the evaluation of estimate that network service quality is comprehensively weighed that is meant that the KPI value of a plurality of resources that network management system calculates according to its Service Component and the calculation rule through its predefined draw.Usually, the KPI value of KQI value resource through importing a plurality of concerns obtains.
In order to realize the object of the invention, the present invention needs on network management system, to set up in advance the network service quality evaluation model of a cover network system.As shown in Figure 2, in this network service quality evaluation model, include the resource that needs monitoring, the KPI measurement pattern and the KQI computation schema of this resource.And in this network service quality evaluation model, form the structure component relationship of tree-shaped level between said KQI, KPI and a plurality of resource according to predetermined policy, to accomplish analysis and evaluation as required to a certain specific network service quality of specific resources.
Further, in this network service quality evaluation model,, also need define following information in advance in order to realize the object of the invention:
A, resource description mode
Resource is the final entity in the network service quality evaluation model of the present invention, therefore, in network service quality evaluation model of the present invention, needs the good resource description mode of predefined, so that the resource that configuration need be monitored in said evaluation model.Particularly, in said network service quality evaluation model, said resource description mode comprises: assembly, and resource type, resource identification, index name, as: { performance assembly, equipment, equipment id, cpu utilance }.
B, KPI measurement pattern
In order to realize each resource that disposes in the said evaluation model is carried out the KPI tolerance of service feature; In embodiments of the present invention; Also need the further KPI measurement pattern of each performance index of definition; So that calculate the KPI value of various needs through specific account form, comprising: maximum, minimum value, mean value, summation etc.
C, KQI computation schema
Because the evaluation that the KPI value of a plurality of resources that KQI is a network management system to calculate according to its Service Component is comprehensively weighed network service quality.In order to realize the object of the invention, need the good KQI computation schema of predefined in the said network service quality evaluation model equally.
Particularly, said KQI computation schema comprises tolerance mode, evaluation method and the grading mode of KQI.Respectively according to as give a definition:
The tolerance mode of KQI: being analogous to aforementioned definitions KPI measurement pattern, specifically is the KQI value that calculates various needs through specific account form, comprising: minimum value, maximum, mean value, percentage etc.
The evaluation method of KQI: in the present invention, the evaluation of KQI specifically is to draw KQI according to the KQI value that calculates according to the evaluation rule of appointment to mark and service quality evaluation.For example: the KQI value of cpu busy percentage is 1: [90-100], expression cpu utilance is that 90-100% is too high, must be divided into 1 be evaluated as poor.
The grading mode of KQI: in the present invention, the grading of KQI specifically is to draw the KQI grading according to the scoring of KQI according to predetermined rule, can use the mode of enumerating to define.As estimate to such an extent that be divided into 5,4 timesharing, and it is available to represent that this KQI is rated, and when estimating to such an extent that be divided into 3,2 timesharing, it is available to represent that this KQI is rated part, and when estimating to such an extent that be divided into 1 timesharing, it is unavailable to represent that this KQI is rated.
Particularly, in the present invention, said network management system can be through the snmp protocol poll or the resource performance data of the needs monitoring that needs the resource of monitoring initiatively report the mode of trap periodically to gather to dispose in the evaluation model.Then, KPI measurement pattern and the KQI computation schema according to definition in the abovementioned steps 1 calculates KPI value and KQI value respectively.Wherein said KQI value specifically is to calculate as input value through the KPI value of network management system being calculated a plurality of resources that obtain.
After obtaining KQI value, the scoring that further draws this network service quality according to the KQI evaluation method of abovementioned steps 1 definition, for example: the KQI value of cpu busy percentage is 1: [90-100], represent that the cpu utilance is that 90-100% is too high, must be divided into 1 be evaluated as poor.
Obtain after the KQI scoring, further mark as input the grading of the service availability of calculating K QI according to the grading rule of step 1 definition with this.For example: when estimating to such an extent that be divided into 5,4 timesharing, it is available to represent that this KQI is rated, and when estimating to such an extent that be divided into 3,2 timesharing, it is available to represent that this KQI is rated part, and when estimating to such an extent that be divided into 1 timesharing, it is unavailable to represent that this KQI is rated.
Particularly; After said network management system is known the scoring and grade of this network service quality according to abovementioned steps 2; Produce the network service quality report and/or send a warning message according to the policing rule of predefined,, and therefrom find KQI, the KPI that influences the network service quality performance bottleneck so that the webmaster personnel can in time be known this network service quality overall state; Thereby improve network service quality targetedly, guarantee the normal operation of network environment.In addition, the present invention links with other assembly through Trap, realizes the network system active management.
In order to make implementation of the present invention be more prone to understand, be that example specifies the present invention with the network service quality of estimating dual-host backup equipment in certain network system under certain application scenarios below.If under this application scenarios, device A is a main computer, equipment B is a guest machine, cpu busy percentage through equipment and response time are estimated dual-host backup equipment as the KPI value of this equipment network service quality situation.
The implementation according to the present invention needs the evaluation model of this network service quality of predefined, supposes that under this application scenarios, the evaluation model of this network service quality is following:
1, the weight of set device A is 0.6, and the weight of equipment B is 0.4, and then this equipment two-shipper service quality is:
SQM (two-shipper)=0.6*KQI (A)+0.4*KQI (B)
2, the weight of setting CPU is 0.3, and the device responds time weighting is 0.7, and then the KQI of device A is:
The KQI quality of KQI (A)=0.3*KQI (A, KPI (CPU))+0.7*KQI (A, KPI (device responds time)) equipment B is:
KQI (B)=0.3*KQI (B, KPI (CPU))+0.7*KQI (B, KPI (device responds time))
3, the available code of points of setting CPU is:
When cpu busy percentage is 60～80%, marked 5 fens, be defined as available
When cpu busy percentage is 30～60%, marked 4 fens, be defined as available
When cpu busy percentage is 0～30%, marked 3 fens, be defined as available
When cpu busy percentage is 80～90%, marked 2 fens, be defined as available
When cpu busy percentage is 90% when above, marked 1 fen, be defined as unavailable
4, the available grading rule of set device response time is:
When the device responds time is 0-10 during second, marks 5 fens, is defined as available
When the device responds time is 10-30 during second, marks 4 fens, is defined as available
When the device responds time is 30-50 during second, marks 3 fens, is defined as available
When the device responds time is 50-100 during second, marks 2 fens, is defined as available
When the device responds time is more than 100 seconds the time, marks 1 fen, is defined as unavailable
5, the evaluation rule of setting two-shipper model is:
When scoring is 5 minutes: but the time spent, and define grid service quality is fine;
When scoring is 4 minutes: but the time spent, and define grid service quality is good;
When scoring is 3 minutes: but the time spent, and define grid service quality is normal;
When scoring is 2 minutes: when unavailable, define grid service quality is relatively poor;
When scoring is 1 minute: when unavailable, define grid service quality is very poor.
The performance data of network management system periodicity collecting device A and equipment B, the cpu busy percentage that under application scenarios of the present invention, collects the A of equipment is: 60%, the response time is: 1s, the cpu busy percentage of equipment B is: 15%, the response time is: 1s.
Calculate the scoring of this network service quality evaluation model according to the network service quality evaluation model of aforementioned definitions, what draw under application scenarios two-shipper service quality estimates to such an extent that be divided into: 4.76 (4 minutes), availability is: available (well).
In sum; The present invention handles through modeled depth analysis and automation to various discrete resource performance data; Can weigh out the grade of network service quality to be evaluated exactly; And then make the webmaster personnel can improve network configuration targetedly, thereby guarantee the normal operation of network environment.
The present invention provides a kind of device of network service quality analysis simultaneously, and said device is applied to the network service quality of phase-split network system.Said network system includes the network management system and the network equipment that receives the management of this management system at least, and said device promptly is integrated in the network management system, also can be used as the existence that is separated of independent device and said network management system.Wherein, said device comprises:
The model configuration module is used for the network service quality evaluation model of pre-configured network system, and in said evaluation model further configuration need the resource monitored.
Particularly, in order to realize the object of the invention, in said network service quality evaluation model, also need pre-configured following information:
A, resource description mode
Resource is the final entity in the network service quality evaluation model of the present invention, therefore, in network service quality evaluation model of the present invention, needs through the good resource description mode of configuration module predefined, so that the resource that configuration need be monitored in said evaluation model.Particularly, in said network service quality evaluation model, said resource description mode comprises: assembly, and resource type, resource identification, index name, as: { performance assembly, equipment, equipment id, cpu utilance }.
B, KPI measurement pattern
In order to realize each resource that disposes in the said evaluation model is carried out the KPI tolerance of service feature; In embodiments of the present invention; Also need further to define the KPI measurement pattern of each performance index through configuration module; So that calculate the KPI value of various needs through specific account form, comprising: maximum, minimum value, mean value, summation etc.
C, KQI computation schema
Because the evaluation that the KPI value of a plurality of resources that KQI is a network management system to calculate according to its Service Component is comprehensively weighed network service quality.In order to realize the object of the invention, need through the good KQI computation schema of configuration module predefined equally in the said network service quality evaluation model.
Particularly, said KQI computation schema comprises tolerance mode, evaluation method and the grading mode of KQI.Respectively according to as give a definition:
The tolerance mode of KQI: being analogous to aforementioned definitions KPI measurement pattern, specifically is the KQI value that calculates various needs through specific account form, comprising: minimum value, maximum, mean value, percentage etc.
The evaluation method of KQI: in the present invention, the evaluation of KQI specifically can draw according to the evaluation rule of the KQI value that calculates according to appointment.For example: the KQI value of cpu busy percentage is 1: [90-100], expression cpu utilance is that 90-100% is too high, must be divided into 1 be evaluated as poor.
The grading mode of KQI: in the present invention, the grading of KQI specifically can use the mode of enumerating to define.As estimate to such an extent that be divided into 5,4 timesharing, and it is available to represent that this KQI is rated, and when estimating to such an extent that be divided into 3,2 timesharing, it is available to represent that this KQI is rated part, and when estimating to such an extent that be divided into 1 timesharing, it is unavailable to represent that this KQI is rated.
Data acquisition module is used for periodically gathering the performance data of evaluation model resources configured and calculates the scoring and the grade of this network service quality according to the calculative strategy that defines in the said evaluation model.
Particularly, in the present invention, said data acquisition module can be through the snmp protocol poll or the resource performance data of the needs monitoring that needs the resource of monitoring initiatively report the mode of trap periodically to gather to dispose in the evaluation model.Then, KPI measurement pattern and the KQI computation schema according to definition in the abovementioned steps 1 calculates KPI value and KQI value respectively.Wherein said KQI value specifically is to calculate as input value through the KPI value of network management system being calculated a plurality of resources that obtain.
After obtaining KQI value, the scoring that further draws this network service quality according to the KQI evaluation method of abovementioned steps 1 definition, for example: the KQI value of cpu busy percentage is 1: [90-100], represent that the cpu utilance is that 90-100% is too high, must be divided into 1 be evaluated as poor.
Obtain after the KQI scoring, further mark as input the grading of the service availability of calculating K QI according to the grading rule of step 1 definition with this.For example: when estimating to such an extent that be divided into 5,4 timesharing, it is available to represent that this KQI is rated, and when estimating to such an extent that be divided into 3,2 timesharing, it is available to represent that this KQI is rated part, and when estimating to such an extent that be divided into 1 timesharing, it is unavailable to represent that this KQI is rated.
Data processing module is used for producing service quality report and sending a warning message according to predetermined policing rule.
Particularly; After said data processing module is known the scoring and grade of this network service quality according to abovementioned steps 2; Produce the network service quality report and/or send a warning message according to the policing rule of predefined,, and therefrom find KQI, the KPI that influences the network service quality performance bottleneck so that the webmaster personnel can in time be known this network service quality overall state; Thereby improve network service quality targetedly, guarantee the normal operation of network environment.In addition, data processing module of the present invention can also link with other assembly through Trap, realizes the network system active management.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (10)
1. the analytical method of a network service quality is applied to network management system the network system of its management is carried out the analysis of network service quality, it is characterized in that said method comprises the steps:
Step 1, set up the network service quality evaluation model of network system in advance, configuration needs the resource of monitoring in said evaluation model;
Step 2, said network management system are periodically gathered the resource performance data of the needs monitoring of disposing in the evaluation model and are calculated the scoring and the grade of this network service quality according to the calculative strategy that defines in the said evaluation model;
Step 3, the predetermined policing rule of basis produce service quality report and send a warning message.
2. the method for claim 1; It is characterized in that; Include resource, KPI, KQI in the said network service quality evaluation model; And form the structure component relationship of tree-shaped level between said KQI, KPI and resource according to predetermined policy, to accomplish analysis as required to specific resources specific network service quality.
3. method as claimed in claim 2 is characterized in that, in said network service quality evaluation model, needs further resource description mode, KPI measurement pattern and the KQI computation schema of definition resource.
4. method as claimed in claim 3 is characterized in that, said KQI computation schema comprises measurement pattern, evaluation method, the grading mode of KQI.
5. method as claimed in claim 4 is characterized in that, the evaluation method of said KQI is for drawing scoring and service quality evaluation according to the metric of KQI and according to the rule of appointment; The grading mode of said KQI then is the grade that draws network service quality according to the scoring of KQI according to predetermined rule.
6. the device of a network service quality analysis; Said device is applied to the network service quality of phase-split network system; Said network system includes the network management system and the network equipment that receives the management of this management system at least, and said device promptly is integrated in the network management system, also can be used as the existence that is separated of independent device and said network management system; It is characterized in that said device comprises:
The model configuration module is used for the network service quality evaluation model of pre-configured network system, and in said evaluation model further configuration need the resource monitored;
Data acquisition module is used for periodically gathering the performance data of evaluation model resources configured and calculates the scoring and the grade of this network service quality according to the calculative strategy that defines in the said evaluation model;
Data processing module is used for producing service quality report and sending a warning message according to predetermined policing rule.
7. device as claimed in claim 6; It is characterized in that; Include resource, KPI, KQI in the network service quality evaluation model of setting up in advance through the model configuration module; And form the structure component relationship of tree-shaped level between said KQI, KPI and resource according to predetermined policy, to accomplish analysis as required to specific resources specific network service quality.
8. device as claimed in claim 7 is characterized in that, needs further resource description mode, KPI measurement pattern and the KQI computation schema of the said resource of configuration in the network service quality evaluation model of setting up in advance through the model configuration module.
9. device as claimed in claim 8 is characterized in that, said KQI computation schema comprises measurement pattern, evaluation method, the grading mode of KQI.
10. device as claimed in claim 9 is characterized in that, the evaluation method of said KQI is to draw scoring and service quality evaluation according to the metric of KQI according to the rule of appointment; The grading mode of said KQI then is the grade that draws network service quality according to the scoring of KQI according to predetermined rule.
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