CN101710871B - Method and device capable of realizing P2P flow optimization based on local scheduling mechanism - Google Patents
Method and device capable of realizing P2P flow optimization based on local scheduling mechanism Download PDFInfo
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Abstract
The invention provides a method and a device capable of realizing P2P flow optimization based on a local scheduling mechanism. The method comprises the following steps: a DPI system indentifies the P2P signalling of a client side, and the P2P signalling is copied and transmitted to a redirected network element and comprises a resource access request; the redirected network element returns a redirected message to the network client side, the resource access request is redirected to a local Tracker agency, and the redirected message comprises the IP address of the Tracker agency; the client side sends the resource request message applied by P2P to the local Tracker agency; the local Tracker agency optimizes a Peer listing returned to the client side; P2P users in the area are dispatched to provide request accessing resource for the client side to guide flow localization. The invention remits P2P traversing and outlet flow.
Description
Technical field
The present invention relates to Internet technical field, relate in particular to a kind of optimization and dispatching method and equipment of P2P flow.
Background technology
Current, P2P uses and has consumed most network bandwidth resources, even has taken the resource of other normal use (like Web, Email etc.).P2P takies in a large number and is mainly caused by two big reasons, one of which, and P2P application drives user is online for a long time, causes the user concurrent rate to promote; Its two, P2P is applied in Peer relation and sets up and be randomness.Cause repeating between the territory to pass through flow, reduced network efficiency.Find that according to statistics in the territory, have under the data conditions, 50%～90% from overseas download among the BT user.A large amount of P2P flows are safeguarded for the network operation of operator and have been brought huge pressure.
In recent years, operator attempts the pressure that following solution is alleviated the P2P flow.
One of which is discerned and according to rule compacting P2P flow through deep-packet detection (DPI:Deep packet inspection) mode.DPI mechanism is through carrying out application layer analysis to all flow messages in the network link, the message of specific characteristic discerned and classified, and carry out traffic management and control according to strategy.But through the DPI compacting, user experience is descended to some extent merely.
Its two, through at network edge or the other caching server of disposing of outlet,, save P2P and pass through or rate of discharge through the P2P caching technology.Need to build separately to the P2P caching system flux recognition system or the equipment of similar DPI, and the storage resources required amount is big, corresponding investment is bigger.And operator stores through the edge provides P2P buffer memory to the user, owing to be stored that content possibly encroached right or illegally, thereby have certain legal risk.
Its three, P4P technology.P2P service provider and Virtual network operator need not the DPI system and cooperate through the optimal way of cooperation.To Virtual network operator P2P resource access information is provided through self client or Tracker by P2P service provider, Virtual network operator provides network optimization tutorial message according to resource access information, and the neighbours that instruct P2P to use Peer select to be optimized.There is the not enough situation of P2P service provider and Virtual network operator reason in P4P also in the exploratory stage at present, and exists some no special services merchant's P2P to use the situation that can't pass through approach to cooperation optimization.
Summary of the invention
The present invention proposes a kind of method and apparatus of realizing the P2P flow optimization based on local scheduling mechanism.Passing through and rate of discharge of P2P alleviated in the localization of guiding P2P application traffic.
According to an aspect of the present invention; A kind of method that realizes the P2P flow optimization based on local scheduling mechanism is proposed; May further comprise the steps: the P2P signaling of DPI system identification client, the P2P signaling copy is forwarded to redirected network element, in the P2P signaling, comprise resource access request; Be redirected network element and return redirection message, resource access request is redirected to local Tracker agency, in redirection message, comprise local Tracker agency's IP address to client; Client is sent the resource request message that P2P uses to local Tracker agency; Local Tracker agency optimizes the Peer tabulation that returns to client, dispatches that P2P user provides the request accessed resources for client this territory in, and direct traffic is localized.
Further, the P2P signaling copy is forwarded to the operation that is redirected network element, may further comprise the steps: the mode of P2P signaling through tunnel protocol is forwarded to redirected network element.
Further; Be redirected network element returns operation from redirection message to client; May further comprise the steps: redirected network element identifies the ID of P2P application type, access resources, the IP address of client, the IP address of server, and returns redirection message to client in view of the above.
Further; Local Tracker agency optimizes the operation of the Peer tabulation that returns to client; May further comprise the steps: local Tracker agency optimizes the Peer tabulation that returns to client according to P2P user capture history, link load and policy information in this territory of statistics and maintenance.
According to a further aspect of the invention; Also propose a kind of equipment, comprising: DPI system, the P2P signaling of identify customer end based on local scheduling mechanism realization P2P flow optimization; The P2P signaling copy is forwarded to redirected network element, in the P2P signaling, comprises resource access request; Be redirected network element, return redirection message, resource access request is redirected to local Tracker agency, in redirection message, comprise local Tracker agency's IP address to client; Local Tracker agency receives the resource request message that the P2P of client uses, and optimizes the Peer tabulation that returns to client, dispatches that P2P user provides the request accessed resources for client this territory in, and direct traffic is localized.
Further, the DPI system is forwarded to redirected network element with the mode of P2P signaling through tunnel protocol.
Further, redirected network element identifies the ID of P2P application type, access resources, the IP address of client, the IP address of server, and returns redirection message to client in view of the above.
Further, local Tracker agency optimizes the Peer tabulation that returns to client according to P2P user capture history, link load and policy information in this territory of statistics and maintenance.
Further, refer to link range that DPI covers in this territory.
The present invention possesses following advantage with respect to existing P2P flow optimization technology:
The first, the present invention is redirected and dispatches visit relation between the P2P, guides mutual access between local Peer.Thereby passing through and rate of discharge of P2P alleviated in the localization of guiding P2P application traffic.Avoid the Peer of random mode in the conventional P 2P application to create a mechanism.
The second, optimization of the present invention and dredging in the process of P2P flow, the Peer tabulation of using at P2P issues process stage and is optimized, and need not a large amount of storage resources.
The 3rd, the present invention is based on operator and disposed under the scene of DPI system, make full use of existing resource, save the investment of independent construction fluidic device.And adopt bypass to dispose, do not need existing ripe network is carried out big change.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is under a kind of scene of having disposed the DPI system based on operator, optimizes and dredge the sketch map of an embodiment of the method for P2P flow.
Fig. 2 is under a kind of scene of having disposed the DPI system based on operator, optimizes and dredge the signaling process sketch map of an embodiment of the method for P2P flow.
Fig. 3 optimizes and dredges the device structure sketch map of P2P flow under a kind of scene of having disposed the DPI system based on operator.
Embodiment
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Referring to Fig. 1, the present invention is the optimization that operator initiatively initiates, and has disposed under the scene of DPI system based on operator, optimizes and dredge the method for P2P flow, and the flow process of its operating procedure is following:
In step 101, the P2P signaling of DPI system identification client is forwarded to redirected network element with the P2P signaling copy, in the P2P signaling, comprises resource access request.
The DPI system possesses the function that goes out to specify message according to the network message Characteristic Recognition.The signaling message of every kind of P2P application all meets certain rule, and the message rule that different P2P use is inequality.Therefore, the DPI system formulates matching strategy according to P2P protocol signaling characteristic, filters out the P2P signaling, like the Get Announce request of BT, with the mode of these requests through certain tunnel protocol, like gre tunneling, is transmitted to redirected network element.The concrete tunneling mechanism that adopts is not done qualification.
In step 102, be redirected network element and return redirection message, like redirection message HTTP 302 to the BT agreement to client.Redirected network element identifies the ID of P2P application type, access resources, the IP address of client, the information such as IP address of server; And in view of the above this resource access request is redirected to local Tracker agency, in redirection message, comprise local Tracker agency's IP address.
In step 103, client is sent the resource request message that P2P uses to local Tracker agency.
In step 104, local Tracker agency optimizes the Peer tabulation that returns to client, dispatches that P2P user provides the request accessed resources for client this territory in, and direct traffic is localized.
Local Tracker agency realizes the function of Tracker in operator's net; According to P2P user capture history and relevant link loads and policy information in this territory of statistics and maintenance; Like the information of user capture BT torrent resource, realize optimized dispatching to visit relation between the user.
During original P2P uses, be to adopt the mode of selecting at random when selecting Peer neighbours, thereby comprise many outer net Peer in the Peer tabulation that such visit relation can cause unnecessary cross-domain flow rate down.And the present invention tabulates through the Peer that optimization returns to the user, and the Peer with this locality replaces the outer net Peer in the original Peer tabulation as far as possible, thereby comes consumer-oriented resource access, alleviates cross-domain flow rate.
Above-mentioned optimization flow process of the present invention has following advantage and effect one of at least:
The first, through the redirect operation of step 102 and the tabulation Optimizing operation of step 104, the present invention is redirected and dispatches visit relation between the P2P, guides mutual access between local Peer.Thereby passing through and rate of discharge of P2P alleviated in the localization of guiding P2P application traffic.Avoid the Peer of random mode in the conventional P 2P application to create a mechanism.
The second, in the optimization of step 104 with dredge in the process of P2P flow, the Peer tabulation that P2P is used is optimized issuing process stage, need not a large amount of storage resources.
The 3rd, in the operation of the DPI of step 101 system identification signaling, disposed based on operator under the scene of DPI system, make full use of existing resource, save the investment of independent construction fluidic device.And adopt bypass to dispose, do not need existing ripe network is carried out big change.
Fig. 2 is under a kind of scene of having disposed the DPI system based on operator, optimizes and dredge the signaling process sketch map of an embodiment of the method for P2P flow.
The user sends the resource request message that P2P uses to the Internet Tracker.
In sending the process of this resource request message, DPI catches this message, is transmitted to redirected network element after duplicating this message.
Be redirected network element and return redirection message, in redirection message, comprise the IP address of local Tracker and use relevant key message with concrete P2P to the user.
According to local Tracker agency's IP address, the user sends the resource request message that P2P uses to local Tracker agency.
Local Tracker agency is according to resource request message, and the Peer after the user sends optimization tabulates, and the user that provides who comprises higher proportion in the tabulation asks the local Peer of accessed resources.
After user and local Peer shake hands, realize data sharing to the request access resources.
Fig. 3 optimizes and dredges the device structure sketch map of P2P flow under a kind of scene of having disposed the DPI system based on operator.
The P2P signaling of DPI system identification client is forwarded to redirected network element with the P2P signaling copy, in the P2P signaling, comprises resource access request.
The DPI system possesses the function that goes out to specify message according to the network message Characteristic Recognition.The signaling message of every kind of P2P application all meets certain rule, and the message rule that different P2P use is inequality.Therefore, the flow of DPI system monitoring network link is according to P2P protocol signaling characteristic; Formulate matching strategy, filter out the P2P signaling, like the Get Announce request of BT; Duplicate a back mode and be transmitted to redirected network element, like gre tunneling through certain tunnel protocol.
Adopting tunnel protocol is in order to guarantee that signaling message can be by normal forwarding and reception in network.Because the signaling message that the DPI system is caught mails to public network server by subscription client, self-contained active IP of its message and purpose IP.Comprise the enough information of original message in order to guarantee to duplicate the back signaling message, and can be correct be transmitted to redirected network element, thereby select tunneling mechanism that the message after duplicating is encapsulated and transmits.
Be redirected network element and return redirection message,, this resource access request is redirected to local Tracker agency, in redirection message, comprise local Tracker agency's IP address like redirection message HTTP 302 to the BT agreement to client.
Be redirected network element the message that each receives is analyzed, identify ID, the user's IP address of the corresponding P2P application type of this message, access resources, the key messages such as IP address of server, and send redirection message to the user according to these information.Wherein, redirection message need comprise local Tracker agency's IP address information and some and the relevant key message of concrete P2P application, the example of redirection message such as the state of HTTP 302 messages, but be not limited thereto.After the user receives redirection message, can visit local Tracker agency to obtain resource service information according to the information that is provided of redirection message.
The resource request message that the P2P that local Tracker agency receives client uses is optimized the Peer tabulation that returns to client, dispatches that P2P user provides the request accessed resources for client this territory in, and direct traffic is localized.
Local Tracker agency realizes the function of Tracker in operator's net; According to P2P user capture history and relevant link loads and policy information in this territory of statistics and maintenance; Like the information of user capture BT torrent resource, realize optimized dispatching to visit relation between the user.Refer to link range that DPI covers here in this territory.
During original P2P uses, be to adopt the mode of selecting at random when selecting Peer neighbours, thereby comprise many outer net Peer in the Peer tabulation that such visit relation can cause unnecessary cross-domain flow rate down.And the present invention tabulates through the Peer that optimization returns to the user, and the Peer with this locality replaces the outer net Peer in the original Peer tabulation as far as possible, thereby comes consumer-oriented resource access, alleviates cross-domain flow rate.
Optimization of the present invention and dredge the equipment of P2P flow has following advantage one of at least:
At first, be redirected network element and local Tracker agency visit relation between the P2P is redirected and dispatches, guide mutual access between local Peer.Thereby passing through and rate of discharge of P2P alleviated in the localization of guiding P2P application traffic.Avoid the Peer of random mode in the conventional P 2P application to create a mechanism.
Secondly, the Peer tabulation that local Tracker agency uses at P2P issues process stage and is optimized, and need not a large amount of storage resources.
Once more, in the operation of DPI system identification signaling, disposed based on operator under the scene of DPI system, made full use of existing resource, saved the investment of independent construction fluidic device.And adopt bypass to dispose, do not need existing ripe network is carried out big change.
The present invention mainly offers following customer group: disposed under the scene of DPI, exist between the operator net Intranet of P2P flow pressure between crucial link.The P2P that the application scenarios of support of the present invention is not limited to current main-stream uses, and like Bittorrent, emule etc. also can be following application based on P2P mechanism.
Based on technique scheme; The present invention safeguards P2P user's in the provider domain access request according to statistics, the mutual shared data of scheduling operator's intra domain user, the localization of guiding P2P application traffic; Effectively reduce and pass through and cross over flow, alleviate crucial link congestion and the outbound pressure of P2P.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characterictic is equal to replacement; And not breaking away from the spirit of technical scheme of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (9)
1. realize may further comprise the steps the method for P2P flow optimization based on local scheduling mechanism for one kind:
The P2P signaling of DPI system identification client is forwarded to redirected network element with the P2P signaling copy, in the P2P signaling, comprises resource access request;
Be redirected network element and return redirection message, resource access request is redirected to local Tracker agency, in redirection message, comprise local Tracker agency's IP address to client;
Client is sent the resource request message that P2P uses to local Tracker agency;
Local Tracker agency optimizes the Peer tabulation that returns to client, dispatches that P2P user provides the request accessed resources for client this territory in, and direct traffic is localized.
2. according to the method for the said P2P flow optimization of claim 1, wherein, the P2P signaling copy is forwarded to the operation that is redirected network element, may further comprise the steps: the mode of P2P signaling through tunnel protocol is forwarded to redirected network element.
3. according to the method for the said P2P flow optimization of claim 1; Wherein, Be redirected network element returns operation from redirection message to client; May further comprise the steps: redirected network element identifies the ID of P2P application type, access resources, the IP address of client, the IP address of server, and returns redirection message to client in view of the above.
4. according to the method for the said P2P flow optimization of claim 1; Wherein, Local Tracker agency optimizes the operation of the Peer tabulation that returns to client; May further comprise the steps: local Tracker agency optimizes the Peer tabulation that returns to client according to P2P user capture history, link load and policy information in this territory of statistics and maintenance.
5. realize comprising the equipment of P2P flow optimization based on local scheduling mechanism for one kind:
The DPI system, the P2P signaling of identify customer end is forwarded to redirected network element with the P2P signaling copy, in the P2P signaling, comprises resource access request;
Be redirected network element, return redirection message, resource access request is redirected to local Tracker agency, in redirection message, comprise local Tracker agency's IP address to client;
Local Tracker agency receives the resource request message that the P2P of client uses, and optimizes the Peer tabulation that returns to client, dispatches that P2P user provides the request accessed resources for client this territory in, and direct traffic is localized.
6. according to the equipment of the said P2P flow optimization of claim 5, wherein, the DPI system is forwarded to redirected network element with the mode of P2P signaling through tunnel protocol.
7. according to the equipment of the said P2P flow optimization of claim 5, wherein, redirected network element identifies the ID of P2P application type, access resources, the IP address of client, the IP address of server, and returns redirection message to client in view of the above.
8. according to the equipment of the said P2P flow optimization of claim 5, wherein, local Tracker agency optimizes the Peer tabulation that returns to client according to P2P user capture history, link load and policy information in this territory of statistics and maintenance.
9. according to the equipment of the said P2P flow optimization of claim 5, wherein, refer to link range that DPI covers in this territory.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101997901B (en) * | 2009-08-28 | 2014-04-30 | 国际商业机器公司 | P2P file transfer management method and system |
| CN102143207B (en) * | 2010-12-10 | 2013-10-09 | 华为技术有限公司 | Content acquisition method and redirecting node |
| CN102137150B (en) * | 2011-01-24 | 2014-04-02 | 华为技术有限公司 | Method and device for controlling peer-to-peer (P2P) signaling |
| US20120290650A1 (en) * | 2011-05-11 | 2012-11-15 | Futurewei Technologies, Inc. | System and Method for Peer to Peer Communications in Cellular Communications Systems |
| 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 |
| CN102904830A (en) * | 2012-11-06 | 2013-01-30 | 北京交通大学 | Method for realizing flow optimization on peer-to-peer (P2P) network software |
| CN103873282A (en) * | 2012-12-14 | 2014-06-18 | 中国移动通信集团福建有限公司 | Method and device for realizing P2P data traffic optimization |
| CN103078772A (en) * | 2013-02-26 | 2013-05-01 | 南京理工大学常熟研究院有限公司 | Depth packet inspection (DPI) sampling peer-to-peer (P2P) flow detection system based on credibility |
| CN103763189B (en) * | 2014-01-09 | 2017-11-17 | 华为技术有限公司 | A kind of application resource access method and router |
| CN104980815A (en) * | 2014-04-03 | 2015-10-14 | 南京汇智明华信息科技有限公司 | On-line video-on-demand system based on P2P |
| CN105323182B (en) * | 2014-07-31 | 2018-06-05 | 中国电信股份有限公司 | It is a kind of to realize under EPC flows unloading scene using the method and system of detection |
| CN108123888A (en) * | 2016-11-29 | 2018-06-05 | 中兴通讯股份有限公司 | Load-balancing method, the apparatus and system of message |
| CN107613308A (en) * | 2017-08-03 | 2018-01-19 | 上海斐讯数据通信技术有限公司 | Forwarding data flow method and system under a kind of live scene |
| CN109547508B (en) * | 2017-09-21 | 2022-03-22 | 阿里巴巴集团控股有限公司 | Method, device and system for realizing resource access |
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