CN105471638A - Service quality measurement and evaluation method for electric power data communication network - Google Patents
Service quality measurement and evaluation method for electric power data communication network Download PDFInfo
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- CN105471638A CN105471638A CN201510813431.4A CN201510813431A CN105471638A CN 105471638 A CN105471638 A CN 105471638A CN 201510813431 A CN201510813431 A CN 201510813431A CN 105471638 A CN105471638 A CN 105471638A
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- 238000004891 communication Methods 0.000 title claims abstract description 25
- 238000011156 evaluation Methods 0.000 title claims abstract description 17
- 238000000691 measurement method Methods 0.000 title abstract 2
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- 238000004458 analytical method Methods 0.000 claims description 10
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- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000007726 management method Methods 0.000 description 14
- 230000008447 perception Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000010200 validation analysis Methods 0.000 description 3
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- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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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
- H04L41/14—Network analysis or design
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
Abstract
The invention provides a service quality measurement and evaluation method for an electric power data communication network. The method comprises: (1), equipment is deployed and a measurement and evaluation environment for a service quality of an electric power data communication network is established; (2), a center management server issues a measurement task; (3), a service terminal and DPI equipment measure service flow data and send a measurement result to the center management server; and (4), the center management server analyzes and evaluates the service quality. According to the invention, the service terminal bypass monitoring program and the DPI equipment are provided and the power data communication network service can be measured and evaluated directly; and the network operation and maintenance efficiency is effectively improved.
Description
Technical field
The present invention relates to a kind of quality of service to measure and appraisal procedure, be specifically related to a kind of electric power data communication network quality of service and measure and appraisal procedure.
Background technology
Along with the increase of bearer service kind and quantity on electric power data communication network, the demand of network being carried out to multifaceted perception and the O&M that becomes more meticulous becomes more and more urgent.And want running status and the quality of service of awareness network, with regard to needing, relevant object is measured.By analyzing the measurement data obtained, can awareness network performance, quality of service and their situation of change, and further assessment is done to network performance, thus provide decision support for network O&M personnel.
Public Network Operator at present mainly through each manufacturer equipment webmaster and build Integrated Network Management System thereon perception carried out to the running status of network.Be limited by decline and the increase of customer complaint that user QoE experiences, operator also starts to dispose initiatively probe device at network edge, these initiatively probe devices by injecting detection packet in net, network performance, service feature are measured.But due to the uncontrollability of user terminal, this Active measuring means truly can not portray the actual conditions of Operational Visit, and the protocol type that this Active measuring probe is supported at present is limited, mainly comprises the popular protocols such as HTTP, SMTP, POP3, DNS and FTP, protocol extension is not strong.Active measurement technology increases extra flow certainly can to present network in addition.
Passive measurement is the measurement point layout data collector at network, collects the network traffics flowing through this point.The DPI equipment that the present network equipment and operator are disposing all belongs to passive measurement equipment, the result data of passive measurement is mainly used in carrying out various flow analysis, passive measurement can not increase the flow on network, measurement be real traffic on network, the behavior of network is not affected.Passive measurement has very large value when network-troubleshooting.
The O&M of electric power data network carries out perception in the mode of passive measurement to network running quality mainly through the network equipment at present, does not have corresponding solution to measure of the quality of service to assessment.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of electric power data communication network quality of service to measure and appraisal procedure, the invention provides service terminal bypass and intercept program and DPI equipment, electric power data communication network business direct current is measured and assessed, effectively promote network O&M efficiency.
In order to realize foregoing invention object, the present invention takes following technical scheme:
A kind of electric power data communication network quality of service is measured and appraisal procedure, and described method comprises the steps:
(1) deployment facility, builds measurement and the Evaluation Environment of electric power data communication network quality of service;
(2) center management server assigns measurement task;
(3) service terminal and DPI equipment traffic data is measured and on send measurement result to described center management server;
(4) described center management server carries out analysis and evaluation to quality of service.
Preferably, in described step (1), described deployment facility comprises and is embedded with bypass and intercepts the service terminal of program, be deployed in DPI equipment, the center management server of operation system service end, described center management server is connected with service terminal and operation system service end respectively, and described service terminal and described operation system service end are communicated to connect by electric power data communication network.
Preferably, in described step (1), described in build the measurement of electric power data communication network quality of service and Evaluation Environment comprises the steps:
Program is intercepted in step 1-1, the bypass of installing research and development on described service terminal;
Step 1-2, run described bypass and intercept program, the validity of proving program;
Step 1-3, the convergence switch of operation system service end disposes described DPI equipment by light splitting or mirror-image fashion and its software is configured;
Step 1-4, verify the validity of described DPI equipment;
Step 1-5, core network side dispose center management server, verify that it intercepts the manageability of program and described DPI equipment to described bypass.
Preferably, in described step (2), described measurement task is handed down to described bypass according to the measurement task parameters template of regulation by described center management server intercepts program and described DPI equipment, and described measurement task parameters template comprises: task names, mission number, terminal number, task beginning and ending time, IP five-tuple and service application motion characteristic.
Preferably, in described step (3), described traffic data refers to meet completely measures the requirement of task parameters template, and mutual message is produced in practical business system access process, described bypass is intercepted the method that program or described DPI equipment intercepted by bypass and is measured these mutual message.
Preferably, parameter in described measurement task parameters template defines the match pattern of 3 types: comprise pattern, between pattern and phase isotype, wherein IP five-tuple is applicable to phase isotype, the task beginning and ending time is applicable between pattern, service application motion characteristic is applicable to comprise pattern, is defined as the Business Stream meeting completely and measure task parameters template and require when above 3 parameters are all mated according to designated mode.
Preferably, described step (4) comprises the steps:
Step 4-1, the service message required satisfied measurement task parameters template, record local time stamp when its action occurs, and be stored in the measurement result table of regulation;
Step 4-2, the measurement result described bypass being intercepted program and described DPI equipment enter database respectively;
Step 4-3, according to the keyword of IP five-tuple, IP message identification, service application motion characteristic, the list item in two databases to be associated, generate the measurement synthesis result table of corresponding concrete measurement task;
Step 4-4, according to service feature metrics-thresholds, analysis and evaluation is carried out to measurement result.
Compared with prior art, beneficial effect of the present invention is:
The present invention adopts passive measurement principle carry out measuring to electric power data communication network quality of service and assess, do not increase network traffics, do not change network behavior prerequisite under depth perception and measurement are carried out to the service quality of business, analyzing and positioning is carried out to service quality deterioration, improves the efficiency of maintenance work.
Accompanying drawing explanation
Fig. 1 is that a kind of electric power data communication network quality of service provided by the invention measures the flow chart with appraisal procedure
Fig. 2 is that a kind of electric power data communication network quality of service provided by the invention measures the structure chart with appraisal procedure
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of electric power data communication network quality of service is measured and appraisal procedure, and described method comprises:
(1) deployment facility, builds measurement and the Evaluation Environment of electric power data communication network quality of service;
Described deployment facility comprises: be embedded with bypass and intercept the service terminal of program, the DPI equipment being deployed in operation system side, center management server and their electric power data communication network network of connection.The passive perception of service terminal side also can adopt and realize by disposing DPI equipment in the change planes mode of Port Mirroring of access top-cross, but considers the reasons such as cost performance, adopts the embedded mode intercepting program in service terminal to realize.Why adopt in this way, major advantage has: 1) because electric power data communication network belongs to electric power enterprise private network, terminal has controllability, and unified plan is convenient; 2) compared with the port snooping programs such as winshark, there is extendible interface and service parameter customizability.The exploitation intercepting program can adopt two kinds of approach: HTTP webpage connector, socket " hook " program.Although most power business adopts B/S mode development, also there are some business to adopt C/S model, consider, adopt the mode of socket " hook " program to realize.
In described step (1), measurement and the Evaluation Environment of building electric power data communication network quality of service comprise,
Program is intercepted in the bypass that 1-1 installs above-mentioned research and development on service terminal;
1-2 runs bypass and intercepts program, the validity of proving program;
1-3 is disposed DPI equipment by light splitting or mirror-image fashion and is configured its software on the convergence switch of operation system side.Because spectroscopic modes easily causes certain loss to original link, thus use the mode of switch upper port mirror image (mirror) operation system side connect the backbone flow of service server be all mirrored to be connected with DPI equipment port on thus Measurement and analysis is carried out to the service message flowing through this link.
1-4 verifies the validity of DPI equipment.
1-5 disposes center management server in core network side, verifies that it is to the manageability intercepting program and DPI equipment.
Wherein, described program and equipment Support center server to its management maintenance, and detect service message according to the measurement task issued, and report qualified its measurement result of service message record.
Wherein, described validation verification refers to that program and equipment can run well according to functional requirement and produce corresponding result.The validation verification of intercepting program is comprised: run intercept program, and confirm program normally start after by programmatic binding to the physical network card of specifying; Operation can produce the application program of network traffics, as HTTP etc., confirms that intercepting program can normally catch network message and show.The validation checking of DPI equipment with intercept the detection type of program seemingly.
Wherein, described manageability checking refers to managed devices, program is not only that network can reach, and is registered in center management server according to given protocol, by the centralized control of server after normal startup.On central server by the IP address of ping service terminal, DPI equipment to determine their network reachability; Confirm that program of intercepting and DPI equipment are arranged in the manageable device view of central server by the mode automatically reported and manually dose, and state is normal.
(2) center management server assigns measurement task;
In described step (2), measurement task is handed down to the program of intercepting of end side and the DPI equipment of operation system side according to the measurement task parameters template of regulation by central server.Measure task parameters template to comprise: task names, mission number, terminal number, task beginning and ending time, IP five-tuple, service application motion characteristic.Consider the compatibility of program, use snmp protocol as central server and the management agreement of intercepting between program and DPI equipment, use extendible MIB storehouse to define and measure task parameters, use SNMPSET message that measurement task is set.
(3) service terminal and DPI equipment the traffic data of specifying is measured and on send measurement result;
The specified services stream of described step (3) refers to meet completely measures the requirement of task parameters template, and the mutual message produced in practical business system access process, intercept program or DPI equipment is measured these mutual message by the method for bypass;
Wherein, described meets the Business Stream measured task parameters template and require completely, it is characterized in that the match pattern parameter in template being defined to 3 types: comprise pattern, between pattern with equal pattern, wherein IP five-tuple is applicable to equal pattern, the task beginning and ending time is applicable between pattern, and service application motion characteristic is applicable to comprise pattern.The Business Stream meeting completely and measure task parameters template and require is defined as when above 3 parameters are all mated according to designated mode;
Wherein, the described method of measurement to mutual message, refer to the service message that satisfied measurement task parameters template is required, record local time stamp when its action occurs, and be stored in the measurement result table of regulation, the field (IP five-tuple, IP message identification, service application motion characteristic, action time of origin) comprised in measurement result table.
After service terminal and DPI device measuring complete, the message format of SNMPTRAP is used to send measurement result on central server.
(4) central server carries out analysis and evaluation to quality of service.
Described step (4) comprises, and the measurement result intercepting program and DPI equipment from client is entered database respectively; According to keywords such as IP five-tuple, IP message identification, service application motion characteristics, the list item in two databases is associated, generate the measurement synthesis result table of corresponding concrete measurement task; According to service feature metrics-thresholds, analysis and evaluation is carried out to measurement result; Assessment result is presented to relevant person liable.
Wherein, described service feature metrics-thresholds defining method, adopts the subjective method combined with measurement result of giving a mark, carries out rolling amendment with the mean value of the measurement result of " being unsatisfied with " user to metrics-thresholds.Specifically comprise: according to standard or specification to the initial threshold of the requirement agriculture products of specific transactions; The mode of being shielded by bullet requires that user carries out marking evaluation to the quality of this Operational Visit, and assessment grade comprises " very satisfied ", " satisfaction ", " being unsatisfied with "; Statistically after subthreshold correction, all service-users of the same type are evaluated as the measurement result of " being unsatisfied with "; If no user evaluation " is unsatisfied with ", then maintain former threshold value, otherwise statistical average carried out to these measurement results, with in assembly average and former threshold value comparatively the superior for upgrade metrics-thresholds.
Wherein, described analysis and assessment method refers to exceed the business action of the threshold value of regulation for certain response time of service terminal side, carries out location and the analysis of performance degradation in conjunction with the measurement result of this action in operation system side.Specifically comprise: from measurement synthesis result table, extract the measurement of this Operational Visit end side to data T
end side responds, T
end side request; Comparison terminal side business access time delay T
end side responds-T
end side requestwith threshold value T
threshold value; If Operational Visit time delay does not exceed the threshold measurement of regulation, then in conjunction with measurement of the same type historical data and provide the overall ranking of this this business of user of the dimension such as time, space with the measurement data of zone user.Otherwise the access time delay T of operation system side in calculating list item
system side responds-T
system side request, present to responsible person concerned and carry out fault locating analysis together with end side time delay.
The time delay of service terminal access service system server is roughly made up of two parts: the propagation delay time of service message on network and service message are at the processing delay of server side.T in above-mentioned measurement
end side responds-T
end side requestobtained by the program of intercepting near end side, reflection be that terminal sends a complete service request to the whole time delay receiving the response coming from server side; And T
system side responds-T
system side requestbe approximately equal to the processing delay of server side, both time delay of difference reflection service message on network.Therefore such comparison contributes to the location that network O&M personnel carry out fault: if the localization of faults is at network side, then can carry out the accurate location of fault in conjunction with webmastering software and some other network diagnostic tool; If the localization of faults is at server side, then in conjunction with the depth detection to service interaction message, can differentiate it is the performance degradation which Operational Visit action (as SQLselect, group, create) causes actually.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. electric power data communication network quality of service is measured and an appraisal procedure, and it is characterized in that, described method comprises the steps:
(1) deployment facility, builds measurement and the Evaluation Environment of electric power data communication network quality of service;
(2) center management server assigns measurement task;
(3) service terminal and DPI equipment traffic data is measured and on send measurement result to described center management server;
(4) described center management server carries out analysis and evaluation to quality of service.
2. measure according to claim 1 and appraisal procedure, it is characterized in that, in described step (1), described deployment facility comprises and is embedded with bypass and intercepts the service terminal of program, be deployed in DPI equipment, the center management server of operation system service end, described center management server is connected with service terminal and operation system service end respectively, and described service terminal and described operation system service end are communicated to connect by electric power data communication network.
3. measure according to claim 2 and appraisal procedure, it is characterized in that, in described step (1), described in build the measurement of electric power data communication network quality of service and Evaluation Environment comprises the steps:
Program is intercepted in step 1-1, the bypass of installing research and development on described service terminal;
Step 1-2, run described bypass and intercept program, the validity of proving program;
Step 1-3, the convergence switch of operation system service end disposes described DPI equipment by light splitting or mirror-image fashion and its software is configured;
Step 1-4, verify the validity of described DPI equipment;
Step 1-5, core network side dispose center management server, verify that it intercepts the manageability of program and described DPI equipment to described bypass.
4. measure according to claim 2 and appraisal procedure, it is characterized in that, in described step (2), described measurement task is handed down to described bypass according to the measurement task parameters template of regulation by described center management server intercepts program and described DPI equipment, and described measurement task parameters template comprises: task names, mission number, terminal number, task beginning and ending time, IP five-tuple and service application motion characteristic.
5. measure according to claim 4 and appraisal procedure, it is characterized in that, in described step (3), described traffic data refers to meet completely measures the requirement of task parameters template, and mutual message is produced in practical business system access process, described bypass is intercepted the method that program or described DPI equipment intercepted by bypass and is measured these mutual message.
6. measure according to claim 5 and appraisal procedure, it is characterized in that, parameter in described measurement task parameters template defines the match pattern of 3 types: comprise pattern, between pattern and phase isotype, wherein IP five-tuple is applicable to phase isotype, the task beginning and ending time is applicable between pattern, service application motion characteristic is applicable to comprise pattern, is defined as the Business Stream meeting completely and measure task parameters template and require when above 3 parameters are all mated according to designated mode.
7. measure according to claim 6 and appraisal procedure, it is characterized in that, described step (4) comprises the steps:
Step 4-1, the service message required satisfied measurement task parameters template, record local time stamp when its action occurs, and be stored in the measurement result table of regulation;
Step 4-2, the measurement result described bypass being intercepted program and described DPI equipment enter database respectively;
Step 4-3, according to the keyword of IP five-tuple, IP message identification, service application motion characteristic, the list item in two databases to be associated, generate the measurement synthesis result table of corresponding concrete measurement task;
Step 4-4, according to service feature metrics-thresholds, analysis and evaluation is carried out to measurement result.
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Application publication date: 20160406 |