CN101465785A - P2P flux caching system based on active guide and redirection - Google Patents
P2P flux caching system based on active guide and redirection Download PDFInfo
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- CN101465785A CN101465785A CNA2008101107354A CN200810110735A CN101465785A CN 101465785 A CN101465785 A CN 101465785A CN A2008101107354 A CNA2008101107354 A CN A2008101107354A CN 200810110735 A CN200810110735 A CN 200810110735A CN 101465785 A CN101465785 A CN 101465785A
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Abstract
The invention relates to a method for improving P2P flow caching efficiency, which is applicable in Internet content cache field. The method for improving P2P flow caching efficiency includes a P2P detection and control server, a P2P caching proxy server, a tracking server; wherein the P2P detection and control server is used to monitor and control P2P downloading and to reset the direction of P2P downloading; the P2P caching proxy server caches the P2P files and provides P2P downloading service for a user; and the tracking server guides the user to be connected with a Peer and a cache server within the network.
Description
One, technical field:
The present invention relates to a kind of method of the P2P of raising flow caching efficiency, be applicable to Internet content cache field.
Two, background technology:
P2P is a kind of distributed network, and the participant of network shares a part of software and hardware resources that they are had, and these shared resources need provide service and content by network, can directly be visited by other peer node (Peer) and need not through intermediate entities.Participant in this network is resource (service and content) supplier, is again that resource (service and content) obtains taker.Therefore the P2P technology can make full use of the resource of network edge, by sharing the mode Data transmission of exchange, provides than C/S technology better service quality based on the Internet with extremely low cost.
Through development in a few years, the P2P technology has become the Internet technology of current main-stream, and polytypes such as its application model has covered download, shares, video, voice have attracted the user of magnanimity.According to statistics, the P2P flow has accounted for 50% of the Internet backbone total flow, peak period even can reach 90%.The P2P technology has been overturned original internet traffic model, and the P2P flow that is full of network has brought great pressure to operator, has also influenced the normal use of other internet, applications such as WEB, Email.
In order to alleviate the pressure that P2P brings to backbone network, reduce the cost of operator.At present, the method that addresses this problem probably is divided into restriction and two kinds of methods of buffer memory.So-called restriction is carried out speed limit or interception at network egress to the P2P flow promptly by the identification to the P2P agreement, and this method can effectively reduce the P2P flow, but can reduce the user experience in the network to a great extent.So-called buffer memory is meant the content caching server at the network internal P2P of administration, makes Intranet user obtain content from caching server, reduces the P2P flow of network egress.The concrete scheme of P2P buffer memory has following several:
Scheme one is disposed caching server and probe server respectively in the IDC of Intranet machine room, the probe server is regularly detected each POP access point and network egress P2P request.These P2P requests are redirected on the local caching server.The advantage of this scheme is, can not change the legacy network topology, and shortcoming is thisly to lack real-time based on the mode of regularly trying to find out, can only be redirected part P2P flow, when network bigger, when P2P user is many, the redirected effect of this scheme and not obvious.
Scheme two seals in seven layer switch at network egress, and outlet P2P flow is carried out application layer analysis.The P2P request that analyzes is redirected on the caching server.The advantage of this mode is can effective recognition P2P flow, and it is redirected.Shortcoming is to adopt this mode that seals in to be linked into network egress, and is bigger to the legacy network influence, may become the bottleneck of network.The inefficacy of this equipment may cause the disconnection that is connected with outer net.And this scheme relatively arrives the dependence of hardware, can not use all network interfaces.
Scheme three, with the message in the mode monitoring network outlet of bypass, by the grouping of protocal analysis identification P2P file data download, obtain the file in download tabulation of current popular, and this locality is downloaded and be cached to corresponding P2P file according to this listed files, initiatively initiatively provide file download service by the P2P client that customizes, cut off local P2P client simultaneously and download connection to the P2P file of outer net to the P2P of this locality download user to local P2P client.
The present invention is on the basis of scheme three, proposes a kind of improved P2P flow buffering method.This method makes full use of the service ability of P2P user in the net by positive guide and redirected method, has improved the overall performance of caching system effectively.
Three, summary of the invention:
A) goal of the invention
The method that the purpose of this invention is to provide a kind of P2P of raising caching performance, after making in this way, can effectively improve the performance of whole caching system, make and dispose a little P 2P content caching server, just can under the prerequisite that does not influence user experience, reach the purpose of optimizing ISP's outlet bandwidth.
B) technical scheme
This P2P flow buffering method that the present invention proposes is made up of P2P detection and Control Server, P2P proxy caching server, three parts of tracking server.Wherein P2P detects and Control Server is used for P2P downloaded and monitors, controls and be redirected; The P2P proxy caching server carries out buffer memory and provides P2P download service for the user the P2P file.Tracking server guiding user connects Peer and the caching server in the Home Network.Concrete steps are as follows:
Step 1: utilize the image feature of the optical splitter or the network equipment, initial data is imported on P2P detection and the Control Server analyze.When monitoring obtains Intranet user to the P2P of outer net request, adopt the form of message camouflage to send redirection message to this user, for example communicating by letter between BitTorrent client and Tracker is based on http protocol, when detecting Get when request that the Intranet client sends to outer net Tracker, the redirection message of a P2P detection and a HTTP of Control Server camouflage, and disconnection Intranet client directly is connected with outer net Tracker, client receives redirection message, can resend request message and give the address of appointment, be i.e. the tracking server of Intranet deployment.
Step 2: when tracking server receives the user when it sends the P2P request, return to user Peer tabulation, because all users that connect this tracking server are intra domain users, therefore, the peer information of its collection also all is positioned at the inside, autonomous territory of ISP.Therefore the P2P user in can aiming field connects, and makes the peer file in download of P2P user in the territory.When the Peer information of collecting when tracking server is not enough, caching server can be returned to the user as a peer, the user can download from caching server, reaches user experience preferably.
Step 3:P2P proxy caching server is received user's download request, at first judge its whether buffer memory this document, if buffer memory then directly provides download service for the user.If there is not buffer memory, then download this document, for the user provides service, be to be unit with the burst because P2P downloads, therefore, as long as buffer memory a burst just can provide service for the user.
C) beneficial effect
The present invention is interconnected by guiding Intranet P2P user, makes full use of the service ability of the P2P user in the territory.Effectively reduced P2P caching server load pressure, made, just can under the prerequisite that does not influence user experience, reduce P2P flow taking Virtual network operator network egress bandwidth by disposing a little P 2P caching server.Improve the performance of P2P caching system on the whole.
Four, description of drawings
Fig. 1: based on the structure chart of positive guide with the P2P content caching system that is redirected
Fig. 2: system works flow process
Five, specific implementation example:
With the BitTorrent agreement is example, and the concrete workflow of this invention as shown in Figure 2.
At first, Intranet BT client sends the GET request to outer net tracker; After P2P detects and Control Server monitors this request, return redirection message, cut off being connected of client and outer net tracker simultaneously to client; After the Intranet client received redirection message, to tracking server request peer tabulation, tracking server returned the peer tabulation of client terminal local, returns the address of P2P proxy caching server in case of necessity.Client connects the peer data download, and client and P2P proxy caching server are with the BT protocol interaction of standard.For the file of buffer memory, reading of data sends to the user from buffer memory; For miss data, the P2P proxy caching server can proxy user provide service from outer net peer downloading slicing for the user.
Claims (2)
1, a kind of by positive guide be redirected to improve the method for P2P content caching efficient, it is characterized in that this method comprise as
Following step:
1) by the monitoring Intranet to the P2P of outer net request, user's request is redirected to tracking server in this territory.
2) return P2P user in this territory other partners (Peer) and Home Network in the address of the caching server disposed, guiding P2P user connects Peer and the caching server in the Home Network.
2, a kind ofly described according to claim 1 by positive guide and the redirected method that improves P2P content caching efficient, it is characterized in that guiding P2P user connects Peer and the caching server in the Home Network.
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| CN101924797A (en) * | 2010-08-26 | 2010-12-22 | 成都市华为赛门铁克科技有限公司 | Method, device and system for processing source downloading |
| CN102624689A (en) * | 2011-11-28 | 2012-08-01 | 苏州奇可思信息科技有限公司 | Client proxy internet surfing method capable of realizing cache priority of local files of server |
| CN102739712A (en) * | 2011-04-08 | 2012-10-17 | 中国移动通信集团贵州有限公司 | Method and system for network cache data distribution |
| CN102780779A (en) * | 2012-07-23 | 2012-11-14 | 北京星网锐捷网络技术有限公司 | Gateway equipment and method and device for optimization of campus network export P2P (peer-to-peer) traffic |
| CN102857476A (en) * | 2011-06-29 | 2013-01-02 | 上海地面通信息网络有限公司 | Instruction cache control system capable of saving traffic |
| CN101635831B (en) * | 2009-08-24 | 2013-01-02 | 成都市华为赛门铁克科技有限公司 | Method, device and agent system for sharing node data of P2P live video |
| CN102891807A (en) * | 2012-07-16 | 2013-01-23 | 北京东方网信科技股份有限公司 | Network flow cache method and system based on active guidance |
| CN102917028A (en) * | 2012-09-26 | 2013-02-06 | 深圳好视网络科技有限公司 | Network video live broadcasting caching method and device |
| CN103067517A (en) * | 2012-12-31 | 2013-04-24 | 网宿科技股份有限公司 | Peer-to-peer (P2P) cache server system and implementation method combing redirection and active connection |
| CN101958827B (en) * | 2009-07-14 | 2013-04-24 | 中国科学院声学研究所 | P2P traffic-optimized network system |
| CN103297525A (en) * | 2013-06-03 | 2013-09-11 | 成都理想信息产业有限责任公司 | High-speed intelligent Ethernet data terminal and data exchange method |
| WO2014023004A1 (en) * | 2012-08-09 | 2014-02-13 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for use in p2p streaming system over mobile network |
| CN103685344A (en) * | 2012-09-03 | 2014-03-26 | 中国移动通信集团公司 | Synergetic method and system for multiple P2P (point-to-point) cache peers |
| CN101997901B (en) * | 2009-08-28 | 2014-04-30 | 国际商业机器公司 | P2P file transfer management method and system |
| CN103888539A (en) * | 2014-03-28 | 2014-06-25 | 网宿科技股份有限公司 | P2P cache guiding method and device and P2P cache system |
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| CN104426718A (en) * | 2013-09-10 | 2015-03-18 | 方正宽带网络服务股份有限公司 | Data monitoring server, cache server and redirection downloading method |
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| CN101958827B (en) * | 2009-07-14 | 2013-04-24 | 中国科学院声学研究所 | P2P traffic-optimized network system |
| CN101635831B (en) * | 2009-08-24 | 2013-01-02 | 成都市华为赛门铁克科技有限公司 | Method, device and agent system for sharing node data of P2P live video |
| CN101997889B (en) * | 2009-08-28 | 2014-10-08 | 中国移动通信集团公司 | Method, system and device for optimizing P2P transmission in WLAN |
| CN101997901B (en) * | 2009-08-28 | 2014-04-30 | 国际商业机器公司 | P2P file transfer management method and system |
| CN101924797B (en) * | 2010-08-26 | 2014-03-05 | 华为数字技术（成都）有限公司 | Method, device and system for processing source downloading |
| CN101924797A (en) * | 2010-08-26 | 2010-12-22 | 成都市华为赛门铁克科技有限公司 | Method, device and system for processing source downloading |
| CN102739712A (en) * | 2011-04-08 | 2012-10-17 | 中国移动通信集团贵州有限公司 | Method and system for network cache data distribution |
| CN102857476A (en) * | 2011-06-29 | 2013-01-02 | 上海地面通信息网络有限公司 | Instruction cache control system capable of saving traffic |
| CN102624689A (en) * | 2011-11-28 | 2012-08-01 | 苏州奇可思信息科技有限公司 | Client proxy internet surfing method capable of realizing cache priority of local files of server |
| CN102891807A (en) * | 2012-07-16 | 2013-01-23 | 北京东方网信科技股份有限公司 | Network flow cache method and system based on active guidance |
| CN102891807B (en) * | 2012-07-16 | 2015-10-28 | 北京东方网信科技股份有限公司 | A kind of network traffic cache method and system based on positive guide |
| CN102780779A (en) * | 2012-07-23 | 2012-11-14 | 北京星网锐捷网络技术有限公司 | Gateway equipment and method and device for optimization of campus network export P2P (peer-to-peer) traffic |
| US9729627B2 (en) | 2012-08-09 | 2017-08-08 | Telefonaktiebolaget L M Ericsson (Pub) | Method and apparatus for use in P2P streaming system over mobile network |
| WO2014023004A1 (en) * | 2012-08-09 | 2014-02-13 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for use in p2p streaming system over mobile network |
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| CN102917028B (en) * | 2012-09-26 | 2016-02-03 | 深圳好视网络科技有限公司 | The caching method of internet video live broadcasting and device |
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| CN103297525A (en) * | 2013-06-03 | 2013-09-11 | 成都理想信息产业有限责任公司 | High-speed intelligent Ethernet data terminal and data exchange method |
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Open date: 20090624 |