CN103188169A - Data flow guide method and data flow guide equipment based on application quality - Google Patents
Data flow guide method and data flow guide equipment based on application quality Download PDFInfo
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Abstract
The invention discloses a data flow guide method and data flow guide equipment based on application quality. The data flow guide method based on the application quality comprises the following steps: receiving a data flow, identifying the specific application of the data flow, calculating the quality of experience (QoE) quality index number applied to at least one link; and selecting the applied optimum link according to the QoE quality index number. The data flow guide equipment based on the application quality comprises a receiving module, an application identification module, a calculation module and a link selection module. The data flow guide method and the data flow guide equipment based on the application quality can calculate the quality situation applied in any link, and further dynamically select the optimum link of the applied flow.
Description
Technical field
The present invention relates to computer networking technology, relate in particular to a kind of data drainage method and equipment thereof based on application quality.
Background technology
The data drainage refers to data traffic is caused suitable link.Many corporate clients are equipped with two or multilink in order to ensure that network is unimpeded through regular meeting, and the price of these links, quality and reliability etc. all are not quite similar.For some links not too reliably, though low price dare not switch too much flow to these links, and these links often utilization rate is very low.On the other hand, the link of Functionality, quality and appealing design is but often by some important use flows not too, and for example P2P download waits application traffic to tie up, and the important use flow transmits and can't be protected as video flow.
There are a lot of load balancing products at present on the market, can carry out load balancing based on IP address or port, can solve a part of the problems referred to above, but often configuration is complicated, and it is dumb, dynamically perception certain be applied in the transmission quality on the link and make the adjustment of traffic routing, all can only depend on user's static configuration.
Summary of the invention
The objective of the invention is to solve the existing problem of above-mentioned load balancing product.
For achieving the above object, on the one hand, the invention provides a kind of data drainage method based on application quality, may further comprise the steps: the receiving data stream amount; Identify the concrete application of described data traffic; Calculate described user's perception (Quality of Experience the is called for short QoE) performance figure that is applied at least one link; Select the optimum link of described application according to described QoE performance figure.
On the other hand, the invention provides a kind of data drainage device based on application quality, this equipment comprises: receiver module, application recognition module, computing module and link selection module, wherein receiver module is used for the receiving data stream amount, application recognition module is used for the concrete application of recognition data flow, and computing module is used for the QoE performance figure of computing application on link; The link selection module is used for selecting according to the QoE performance figure optimum link of application.
The method according to this invention and equipment thereof can calculate and be applied in the quality condition that transmits in a certain link, and then the optimum link of Dynamic Selection application traffic.In addition, method of the present invention also can be used for network application control, the Bandwidth Management in the strategy, and monitors can carry out network application the time.
Description of drawings
Exemplary embodiment of the present invention will be understood from the accompanying drawing of the detailed description that hereinafter provides and different embodiments of the invention more completely, however this should not be regarded as the present invention is limited to specific embodiment, and should be just in order to explain and to understand.
Fig. 1 is that the embodiment of the invention is based on the data drainage method application scenarios figure of application quality;
Fig. 2 A is that one embodiment of the invention is based on the data drainage method flow chart of application quality;
Fig. 2 B is that another embodiment of the present invention is based on the data drainage method flow chart of application quality;
Fig. 3 is that the embodiment of the invention is based on the schematic configuration diagram of the data drainage device of application quality.
Embodiment
Those of ordinary skill in the art will recognize that the following detailed description of described exemplary embodiment only is illustrative, and not be to be intended to be limited by any way.
Fig. 1 is that the embodiment of the invention is based on the data drainage method application scenarios figure of application quality.
In Fig. 1, from the network traffics of user terminal, transfer to the data drainage device through switch, namely the embodiment of the invention is based on the data drainage device of application quality.This data drainage device identifies the corresponding network application of this flow.For example, Internet video or P2P download etc.According to different application to the time-delay, packet loss, the retransmission rate that connect be connected the demand of data such as transmission speed, calculate this and be applied in QoE performance figure on certain bar link, and will use drainage to corresponding link according to this QoE performance figure, and be transferred on the Internet through router.
Need to prove that this data drainage device not only can exist with specific installation, also can be present in the network equipments such as switch or router with the form of module.
Fig. 2 A is that the embodiment of the invention is based on the data drainage method flow chart of application quality.The method comprising the steps of 101-104:
In step 101, the data drainage device receives the data packet flow from user terminal.
In step 102, the concrete application of data drainage device recognition data flow.
Particularly, the data drainage device extracts the entrained five-tuple information of packet, namely extract the one or more information in transport layer protocol (TCP/UDP), source IP address, purpose IP address, source port and the destination interface, and adopt the depth data bag to detect (DPI) technology and identify the affiliated application of this connection.
In step 103, the QoE performance figure of data drainage device computing application on link.
The data drainage device by obtaining connection time-delay, packet loss, retransmission rate and be connected data such as transmission speed, calculate the QoE performance figure that is applied on certain bar link.
Below set forth at the computational algorithm of QoE performance figure: at first according to different application to time-delay, packet loss, retransmission rate be connected the isoparametric sensitivity difference of transmission speed, the health that definition is used connects the requirement to above-mentioned parameter.
In an example, the online game class is used, the major concern network delay, and be indifferent to the transmission rate of connection, therefore, the health that the online game class is used connect to time-delay, packet loss, retransmission rate and be connected transmission speed isoparametric require as follows: time-delay＜5ms, packet loss＜5%, retransmission rate＜5% connects transmission rate and does not require, and the connection that meets above-mentioned each parameter request then is considered to healthy a connection.
Be connected number by the connection number of certain application in the statistics link is total and healthy, can calculate the QoE performance figure on certain bar link of certain application, namely the QoE performance figure of Ying Yonging=this application health connects number/this application and connects total * 100%.
In an example, certain connection number that is applied in certain link adds up to 100, and wherein healthy connection number is 50, and according to the QoE performance figure computing formula of using, its QoE performance figure value is 0.2.
In step 104, the data drainage device is selected the optimum link of this application according to being applied in QoE performance figure at least one link.
In one embodiment, the data drainage device can activate the state of using routing by two kinds of strategy patterns:
First kind is the guarantee pattern, be the guarantee strategy that the user has disposed certain application, when detecting this QoE performance figure that is applied in certain bar link and be lower than default threshold value, trigger ensureing strategy, select the link of the QoE performance figure optimum that should use, and then send this application traffic.
In an example, judge that certain is applied in the QoE performance figure on article one link.If this is applied in QoE performance figure on article one link when being lower than default threshold value, then from other links, selects the link of QoE performance figure optimum, and then send this application traffic.
Second kind is the tuning pattern, and namely the user disposes the tuning strategy of certain application, and this tuning strategy is always selected the link of this application QoE performance figure optimum, and then sends this application traffic.
Fig. 2 B is that another embodiment of the present invention is based on the data drainage method flow chart of application quality.The difference of the data drainage method shown in the data drainage method shown in Fig. 2 B and Fig. 2 A is, also comprises step 105 after step 104.
In step 105, the QoE performance figure of data drainage device computing application on new link if described QoE performance figure is lower than predetermined threshold value, then switched back to former link.
Particularly, the QoE performance figure that is applied in each link constantly is updated, when application traffic is switched to another link, this application traffic will be used as the flow of new link and participate in the calculating of QoE performance figure, and this QoE performance figure that is applied on the new link is upgraded the result that also can have influence on this application routing in real time.
In an example, when the QoE performance figure of certain application traffic in article one link is lower than default threshold value, then be switched in the second link, the QoE performance figure of this application traffic in the second link will be recomputated, when new QoE performance figure is higher than threshold value, this application traffic continues to send by the second link, otherwise will switch back to article one link.
The embodiment of the invention is that two tabulations have been set up in the application connection after the routing, first tabulation, i.e. blacklist list and second tabulation, i.e. white list tabulation.Application connection status after the data drainage device monitoring routing, application connection after detecting routing always can't be set up or be interrupted unusually, then can use the purpose of connecting address to this joins in the blacklist, this is applied in the later connection, and the connection of mailing to this destination address will can be again by drainage; It is because the application that the instability of service end causes can't connect the time that application after the data drainage device detects routing connects, and the connection of then mailing to this service end also can be by drainage.But judged by accident and enter blacklist for fear of this application, introduced the white list tabulation, be about to this class destination address and join the white list tabulation, the destination address in the white list tabulation connects can be by drainage.
Fig. 3 is that the embodiment of the invention is based on the schematic configuration diagram of the data drainage device of application quality.This equipment comprises receiver module 201, application recognition module 202, computing module 203 and link selection module 204.
Receiver module 201 is used for receiving the client data flow.
Application recognition module 202 is used for the concrete application of recognition data flow.The customer data bag flow that this application recognition module 202 receives according to receiver module 201, extract the entrained five-tuple information of packet, namely extract the one or more information in transport layer protocol (TCP/UDP), source IP address, purpose IP address, source port and the destination interface, and adopt the depth data bag to detect (DPI) technology and identify the affiliated application of this connection.
Computing module 203 is used for the QoE performance figure of computing application on link.This computing module 203 by obtaining connection time-delay, packet loss, retransmission rate and be connected data such as transmission speed, calculate the QoE performance figure that is applied on certain bar link.Be connected number by the connection number of certain application in the statistics link is total and healthy, can calculate the QoE performance figure on certain bar link of certain application, namely the QoE performance figure of Ying Yonging=this application health connects number/this application and connects total * 100%.
Link selection module 204 is used for selecting according to the QoE performance figure optimum link of application.Link selection module 204 can activate the state of using routing by two kinds of strategy patterns:
First kind is the guarantee pattern, be the guarantee strategy that the user has disposed certain application, when detecting this QoE performance figure that is applied in certain bar link and be lower than default threshold value, trigger ensureing strategy, select the link of the QoE performance figure optimum that should use, and then send this application traffic.
Second kind is the tuning pattern, and namely the user disposes the tuning strategy of certain application, and this tuning strategy is always selected the link of this application QoE performance figure optimum, and then sends this application traffic.
The embodiment of the invention, when application traffic is switched to another link, this application traffic will be used as the flow of new link and participate in the calculating of QoE performance figure, and this renewal that is applied in QoE performance figure on the new link also can have influence on the result of this application routing in real time.
The receiver module 201 of embodiment of the invention data drainage device, application recognition module 202, computing module 203 and link selection module 204 are respectively in order to realize the corresponding flow process of each method among Fig. 2.
Need to prove that this data drainage device can be an independently network equipment, also can be to be in the network equipments such as gateway, internet behavior management with a modular form storage.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Although illustrated and described specific embodiments of the present invention, yet do not deviating from exemplary embodiment of the present invention and more under the prerequisite of broad aspect, those skilled in the art obviously can make changes and modifications based on teaching herein.Therefore, appended claim is intended to that all this classes are not deviated from the true spirit of exemplary embodiment of the present invention and variation and the change of scope is included within its scope.
Claims (10)
1. the data drainage method based on application quality is characterized in that, may further comprise the steps:
The receiving data stream amount;
Identify the concrete application of described data traffic;
Calculate the described user's perception QoE performance figure that is applied at least one link;
Select the optimum link of described application according to described QoE performance figure.
2. method according to claim 1, it is characterized in that the described QoE performance figure that is applied on the link of described calculating is according to the time-delay, packet loss, the retransmission rate that connect and one or more parameters in being connected transmission speed are calculated the described QoE performance figure that is applied on the link.
3. method according to claim 1 is characterized in that, the healthy number/total * 100% of this application connection that connects of described QoE performance figure=application.
4. method according to claim 1 is characterized in that, describedly selects the optimum link step of described application to comprise according to described QoE performance figure:
Judge the described QoE performance figure that is applied on article one link;
When if described QoE performance figure is lower than default threshold value, then from other links, select the link of QoE performance figure optimum.
5. method according to claim 1 is characterized in that, when the flow of described application was switched to another link, this application traffic will be used as the flow of new link and participate in the calculating of QoE performance figure.
6. method according to claim 1 is characterized in that, and is further comprising the steps of after the step of the described optimum link of selecting described application according to described QoE performance figure:
Recomputate the QoE performance figure in the link of described application traffic after routing, when described QoE performance figure is lower than predetermined threshold value, then switched back to former link.
7. method according to claim 1 is characterized in that, describedly selects after the optimum link step of described application further comprising the steps of according to described QoE performance figure:
Application connection state after the detection routing, if described application connection always can't be set up or be interrupted unusually, then can use the purpose of connecting address to this and join in first tabulation, the connection of mailing to the destination address in described first tabulation will can be again by drainage; If it is that the connection of mailing to the destination address of described second tabulation can be by drainage because the application that the instability of service end causes can't connect the time, then can join described application purpose of connecting address in second tabulation that described application connects.
8. data drainage device based on application quality is characterized in that comprising:
Receiver module is used for the receiving data stream amount;
Application recognition module is used for the concrete application of the described data traffic of identification;
Computing module is used for calculating the described QoE performance figure that is applied on the link;
The link selection module is for the optimum link of selecting described application according to described QoE performance figure.
9. equipment according to claim 8 is characterized in that, the healthy number/total * 100% of this application connection that connects of described QoE performance figure=application.
10. equipment according to claim 8 is characterized in that, described computing module is according to the time-delay, packet loss, the retransmission rate that connect and one or more parameters in being connected transmission speed are calculated the described QoE performance figure that is applied on the link.
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| CN109361951A (en) * | 2018-10-30 | 2019-02-19 | 腾讯科技（深圳）有限公司 | A kind of video data caching method, device and user terminal |
| CN110048906A (en) * | 2019-03-27 | 2019-07-23 | 网宿科技股份有限公司 | A kind of method, system, device and server judging node-node transmission quality |
| US10917497B2 (en) | 2019-03-27 | 2021-02-09 | Wangsu Science & Technology Co., Ltd. | Method, system, device and server for determining transmission quality of node |
| CN113037624A (en) * | 2019-12-25 | 2021-06-25 | 华为技术有限公司 | Data flow control method and device |
| CN113365252A (en) * | 2021-05-31 | 2021-09-07 | 浙江大华技术股份有限公司 | Data transmission method, data transmission device, storage medium and electronic device |
| CN115348204A (en) * | 2022-07-20 | 2022-11-15 | 慧之安信息技术股份有限公司 | Real-time streaming media distribution network system |
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| CN115348204A (en) * | 2022-07-20 | 2022-11-15 | 慧之安信息技术股份有限公司 | Real-time streaming media distribution network system |
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