CN103873282A - Method and device for realizing P2P data traffic optimization - Google Patents
Method and device for realizing P2P data traffic optimization Download PDFInfo
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- CN103873282A CN103873282A CN201210541404.2A CN201210541404A CN103873282A CN 103873282 A CN103873282 A CN 103873282A CN 201210541404 A CN201210541404 A CN 201210541404A CN 103873282 A CN103873282 A CN 103873282A
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Abstract
The invention discloses a method and a device for realizing P2P data traffic optimization. The method comprises steps of intercepting P2P resource requests through redirection of a router, establishing connection with a corresponding Tracker server to obtain nodes of the whole network according to the resource request, setting a white list for nodes of the whole network according to the IP address attribution positions of the nodes and a node threshold value of a P2P service which corresponds with a resource request based on user perception and returning the nodes in the white list to the client. In the embodiment of the invention, the invention intercepts the P2P resource request with the lowest cost through intercepting the message of the Tracker server by the server and generates the white list according to the IP address attribution position priority and the node threshold value on the basis of the user perception, the perception of the user can be fully considered and the inter-network peers cannot be deleted blindly.
Description
Technical field
The present invention relates to Internet technical field, relate in particular to a kind of method and device of the P2P of realization flow optimization.
Background technology
P4P(Proactive network Provider Participation for P2P) technology is the upgrade version of P2P technology, be intended to strengthen (the Internet Service Provider of ISP, ISP) with the communicating by letter of client-side program, reduce backbone network transmission pressure and operation cost, and improve the performance of the P2P file transfer of improvement.From P2P random choose Peer(peer node) different, P4P agreement can coordination network topological data, can effectively select Peer, thereby improves network router efficiency.Because P4P need to coordinate P2P service provider's grid of reference topological data in the time that Peer dispatches, therefore need basic telecom carrier and P2P service provider jointly to participate in, but P2P service provider and ISP cooperative drive deficiency at present, causes P4P technology to be difficult to substitute P2P technology.Therefore, need to be optimized P2P business.
At present, along with the improving constantly of broadband clients bandwidth, increasing customer selecting is watched HD video online.According to system of behavior analysis, 35% flow concentrates on video web page and client video, and wherein major part concentrates on P2P class video.But due to the random schedule mechanism of P2P, client, in the time using P2P class video, is still dispatched to rete mirabile peer in a large number at present.According to statistics, the in the situation that of having data in net, 50% ~ 90% download from netting in BT user.This has produced the expense that interconnects in a large number on the one hand, has caused backbone network congested, brings immense pressure to the network operation maintenance of operator; Because outgoing access causes speed slower, affect customer experience on the other hand.
At present, have following several scheme to solve the too high problem of rete mirabile P2P flow:
In the patent of invention that is 200910142711 in Chinese Patent Application No. " P2P content caching system and method ", use caching technology or CDN(Content Distribution Network, content distributing network) technology.It provides P2P service with the form of ordinary node or super node for netting interior client by disposing caching server or CDN node at network egress.But cache resources pond is larger to the requirement of storage, invests higher.And in utilization, store and provide P2P business service to user by edge, owing to cannot auditing the content of storage, and initiatively for client provides content, may, because of the problem infringement of copyright, have certain legal risk.
Also having a kind of scheme is use traffic jamming equipment or DPI(Deep packert inspection, deep packet inspection device) suppress net outer peer flow velocity.But the negative effect that this scheme reduction flow velocity brings is remarkable, part client crosses slowly operator is complained because of P2P speed.And part P2P video is higher to rate request, reduces flow velocity and conventionally will cause client perception to decline to a great extent.
In the patent of invention that is 200910180044 in Chinese Patent Application No. " a kind of method and apparatus of realizing P2P flow optimization based on local scheduling mechanism ", use the P2P signaling of DPI system identification client, P2P signaling copy is forwarded to redirected network element, comprises resource access request in P2P signaling; Be redirected network element and return to redirection message to client, comprise the IP address of local Tracker server at redirection message, with this, resource access request is redirected to local Tracker server; Client sends the resource request message of P2P application to local Tracker server; Local Tracker agency optimizes the Peer list that returns to client, and dispatch P2P user in this territory and provide the resource of request access for client, thus direct traffic localization.But, this scheme does not solve client's perception problems, and main in the face of the larger one-level ISP((Internet Service Provider of user base number in net, ISP), do not consider the ISP of the speed deficiency that P2P user may cause in less, the simple scheduling net of user in other nets.Meanwhile, also need to dispose DPI equipment, for the medium and small ISP of part, need to transform existing network, invest excessive.
In sum, above technology only merely suppresses the impact of P2P flow on the node that interconnects, backbone network, whether can keep original level less than P2P service after inhibition flow, has ignored user's perception; In addition, also need to drop into extra equipment as caching system, CDN node, DPI equipment etc., invest larger.
Summary of the invention
In order to solve the above-mentioned defect existing in prior art, the present invention proposes a kind of method and device of the P2P of realization flow optimization, can realize easily and effectively P2P flow optimization.
One aspect of the present invention, provides a kind of method of the P2P of realization flow optimization, comprises the following steps:
Tackle by redirection of router the P2P resource request that client sends;
Initiate to connect to corresponding Tracker server the node that obtains the whole network according to described resource request, and according to the IP address ownership place of node, and the node threshold value based on user awareness of P2P business corresponding to described resource request, be the Node configuration white list of the whole network;
Return to the node in described white list to client.
In the method that realizes P2P flow optimization that the embodiment of the present invention proposes, tackle the message of the access Tracker server of client transmission by routing policy, can kidnap P2P resource request with minimum cost, saved the great number investment of disposing DPI equipment; And the node that is the whole network according to the IP address ownership place priority of node and the node threshold value based on user awareness generates white list, fully take into account user awareness, and delete no longer blindly rete mirabile peer.
As technique scheme preferably, according to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to described resource request, for the Node configuration white list of the whole network and the step of blacklist comprise:
The node of the whole network is added to blacklist;
Node in described blacklist is moved into white list step by step according to the IP address ownership place priority of node, until the number of nodes in white list reaches the described node threshold value based on user awareness.
As technique scheme preferably, the described node threshold value based on user awareness, adopts following methods to generate:
For P2P business setting start node threshold values and the service rate threshold values based on user awareness;
The node that equals start node threshold values with quantity docks and uses this P2P business;
Judge that whether service dial testing speed is lower than described service rate threshold values, if, improve start node threshold values, until service dial testing speed is higher than described service rate threshold values, and the start node threshold value after improving is defined as to the node threshold value based on user awareness of this P2P business.
As technique scheme preferably, described method also comprises: return after the node in described white list to client, describedly judge that service dial testing speed, whether lower than the step of described service rate threshold values, upgrades the described node threshold value based on user awareness by continuing to carry out.
As technique scheme preferably, return after the node in described white list to client, when upgrading appears in the described node threshold value based on user awareness, described method also comprises:
According to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to this resource request after upgrading, amendment white list;
Return to the node in amended white list to client.
On the other hand, the embodiment of the present invention also proposes a kind of device of the P2P of realization flow optimization, comprising:
Blocking module, the P2P resource request sending for tackle client by redirection of router;
Node scan module, for initiating to connect to corresponding Tracker server the node that obtains the whole network according to described resource request, and according to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to described resource request, be Node configuration white list and the blacklist of the whole network;
Scheduler module, for returning to the node of described white list to client.
Preferred described node scan module as technique scheme is used for:
The node of the whole network is added to blacklist;
Node in described blacklist is moved into white list step by step according to the IP address ownership place priority of node, until the number of nodes in white list reaches the described node threshold value based on user awareness.
Preferred described device as technique scheme also comprises testing module, for:
For P2P business setting start node threshold values and the service rate threshold values based on user awareness;
The node that equals start node threshold values with quantity docks and uses this P2P business;
Judge that whether service dial testing speed is lower than described service rate threshold values, if, improve start node threshold values, until service dial testing speed is higher than described service rate threshold values, and the start node threshold value after improving is defined as to the node threshold value based on user awareness of this P2P business.
As technique scheme preferably, described testing module also for:
When described scheduler module is returned to client after the node in described white list, by continuing to judge whether service dial testing speed upgrades the described node threshold value based on user awareness lower than described service rate threshold values.
As the preferred described node scan module of technique scheme also for:
When described scheduler module is returned to client after the node in described white list, and when upgrading appears in the described node threshold value based on user awareness, according to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to this resource request after upgrading, amendment white list;
Described scheduler module is used for: the node that returns to amended white list to client.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in write specification, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Brief description of the drawings
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the method that realizes P2P flow optimization of preferred embodiment of the present invention proposition;
Fig. 2 is the flow chart of the method that realizes P2P flow optimization of the present invention's one specific embodiment proposition;
Fig. 3 is the structural representation of the device of realizing P2P flow optimization of preferred embodiment of the present invention proposition.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of method that realizes P2P flow optimization that the preferred embodiment of the present invention proposes, comprises the following steps:
Step S11: tackle the P2P resource request that client sends to Tracker server by redirection of router;
Step S12: initiate to connect to described Tracker server the node that obtains the whole network according to described resource request, and according to default IP address ownership place priority, and the node threshold value based on user awareness of P2P business corresponding to this resource request, be the Node configuration white list of the whole network;
Step S13: return to the node in described white list to client.
Wherein, Tracker server is to help BitTorrent agreement (BitTorrent agreement is a network file host-host protocol, and it can realize the technology of point-to-point sharing files.Compared with other point-to-point agreements, it has multi-multipoint characteristic: the people who downloads a file is more, and after downloading, and continue to maintain the state of sharing (uploading) and just can become the seed file (.torrent) that can allow other people download, the speed of download of this file is faster) between node and node, do the server being connected, it is the server for collecting download person's information, and this information is offered to other download persons, makes download person's transmission data that are connected with each other.
In the method that realizes P2P flow optimization that the embodiment of the present invention proposes, tackle the message of the access Tracker server of client transmission by routing policy, can kidnap P2P resource request with minimum cost, save the great number investment of disposing DPI equipment, and the node that is the whole network according to IP address ownership place priority and the node threshold value based on user awareness generates white list, fully take into account user awareness, and delete no longer blindly rete mirabile peer.
Below, the method that realizes P2P flow optimization by specific embodiment, the present invention being proposed is elaborated.
Specific embodiment one as shown in Figure 2, comprises the following steps:
Step S21: tackle the P2P resource request that client sends to Tracker server by redirection of router.
For example, at metropolitan area network outlet core router deploy routing policy, the flow that leads to each tracker server is redirected to the P2P resource request sending to Tracker server to tackle client.
Step S22: the P2P resource request of initiating according to client, initiate to connect to corresponding tracker server, obtain the peer list of the whole network.
Step S23: the peer of the whole network is all piped off, and white list is empty.
Step S24: the node in described blacklist is moved into white list step by step according to the IP address ownership place priority of node, until the number of nodes in white list reaches the node threshold value based on user awareness.
Wherein, the IP address ownership place priority of peer for example can be according to following policy setting:
1, metropolitan area network IP address of internal network is the first order;
2, this ISP of other districts and cities metropolitan area network IP address is the second level inside the province;
3, the IP of this ISP is the third level outside the province;
4, the IP of other ISP is the fourth stage.
In addition,, in the time there is super node in the peer of the whole network obtaining, the IP address ownership place priority of peer for example can be according to following policy setting:
1, in metropolitan area network Intranet IP and metropolitan area network, all super nodes are the first order;
2, inside the province this ISP of other districts and cities metropolitan area network IP and inside the province all super nodes of other districts and cities be the second level;
3, outside the province the IP of this ISP and outside the province this ISP super node be the third level;
4, the IP of other ISP is the fourth stage.
First the peer that belongs to the first order in blacklist is moved into white list, then contrast the quantity of peer in white list and the node threshold value based on user awareness, if not enough, the all or part of peer of the second level is moved into white list, if the whole peer in the second level include in after white list, in white list, the quantity of peer, still lower than node valve value parameter, adds the peer of the 3rd utmost point, with this repeatedly, until in white list the quantity of peer equate with the node threshold value based on user awareness.
Wherein, if certain one-level peer moves into after white list, in white list, peer quantity can exceed the node threshold value based on user awareness,, preferentially providing under the principle of super node, unnecessary peer is retained in blacklist.
Wherein, the node threshold value based on user awareness, by all kinds of P2P business are carried out to continual testing generation, particularly, comprising:
A. be rule of thumb P2P business setting start node threshold values and service rate threshold values.
Wherein, P2P type of service mainly comprises that P2P program request, P2P are live, P2P file is downloaded.Wherein P2P program request and P2P are live also can be subdivided into multiple subservices according to video code rate and ISP, and P2P file is downloaded also can be subdivided into multiple subservices according to download website.The start node threshold values of every class P2P business is different not to the utmost, and service rate threshold values also can be different.Wherein, service rate threshold value should arrange service rate when user's flow process is used this business based on user awareness.Start node threshold values refers to the quantity of the peer while meeting described service rate threshold value.
B. the node that equals start node threshold values with quantity docks and uses this P2P business;
C. judge that service dial testing speed, whether lower than described service rate threshold values, if so, improves start node threshold values, until service dial testing speed is higher than described service rate threshold values.
D. the start node threshold value after improving is defined as to the node threshold value based on user awareness of this P2P business.
E. proceed testing, guarantee that service dial testing speed is higher than service rate threshold values.
Further, when service dial testing speed is during higher than service rate threshold values, can reduce start node threshold values, to economize on resources.
S25: return to the peer in described white list to client.
In this step, the peer in the white list after optimizing is integrated into peerlist(node listing) return to client, so that user priority is selected caching system and super node, and fully interconnected with the interior user of net.
Step S26: client is received the peer in white list, connects and obtains data to the peer in white list.
In other embodiments of the invention, on the basis of above-mentioned steps, can also be according to the service rate threshold values amendment white list based on user awareness of dynamic change and the step of blacklist.Particularly, return after the node in white list to client, can also comprise the following steps:
According to the renewal of the node threshold value based on user awareness of P2P business corresponding to this resource request, amendment white list and blacklist; Return to the node in amended white list to client.
Wherein, owing to ceaselessly P2P business being carried out to testing, therefore, the node threshold value based on user awareness may change.For example, when P2P service dial testing speed step-down, during lower than the service rate threshold values of this P2P business (user experiences deficiency), so, node threshold value based on user awareness will become greatly, therefore will in white list, increase according to priority peer, even can increase rete mirabile node, make the testing speed of this P2P2 business equal service rate threshold value, can avoid user to experience the generation of not enough situation.And in the time that service rate exceedes service rate threshold value, the node threshold value based on user awareness will diminish, at this moment can start to reject (being moved into blacklist from white list) from the minimum peer of priority, economize on resources.Therefore, can realize and for example ensureing, when user uses P2P business (watching P2P video) glibly, dynamically adjust the node threshold value based on user awareness.
Correspondingly, the present invention proposes a kind of device of the P2P of realization flow optimization, as shown in Figure 3, comprising:
Preferably, described node scan module 302 for:
The node of the whole network is added to blacklist;
Node in described blacklist is moved into white list step by step according to the IP address ownership place priority of node, until the number of nodes in white list reaches the described node threshold value based on user awareness.
Preferably, described device also comprises testing module, for generating the node threshold value based on user awareness, particularly, for:
For P2P business setting start node threshold values and the service rate threshold values based on user awareness;
The node that equals start node threshold values with quantity docks and uses this P2P business;
Judge that whether service dial testing speed is lower than described service rate threshold values, if, improve start node threshold values, until service dial testing speed is higher than described service rate threshold values, and the start node threshold value after improving is defined as to the node threshold value based on user awareness of this P2P business.
Preferably, described testing module also for:
When described scheduler module 303 is returned to client after the node in described white list, by continuing to judge whether service dial testing speed upgrades the described node threshold value based on user awareness lower than described service rate threshold values.
Preferably, described node scan module 301 also for:
When described scheduler module 303 is returned to client after the node in described white list, and when described testing module 303 is upgraded the node threshold value based on user awareness, according to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to this resource request after upgrading, amendment white list and blacklist;
Described scheduler module 303 is for the node that returns to amended white list to client.
To sum up, the embodiment of the present invention is by interception Intranet user P2P flow, and guiding Intranet user is as far as possible interconnected, realizes P4P, and the temperature that solution conventional P 2P technology produces without Centroid reduces, health degree declines and do not have seed-bearing situation.
The embodiment of the present invention is tackled the P2P resource request that sends to tracker server by routing policy, solve existing scheme and need to dispose the great number investment problem that DPI equipment brings, and current each operator egress router all possesses routing policy function, makes the present invention have general applicability.
In the embodiment of the present invention, testing module based on user awareness can realize auto-dial testing function, comprise the testing to the testing of each cache node and simulation client behavior, calculate the nodes that ensures that customer experience needs, can provide suitable cache node number for all kinds of P2P application.
In the embodiment of the present invention, the P2P based on black and white lists is redirected algorithm before the peerlist providing to client, by black and white lists, carries out coupling and the screening of peer node.Can retain peer in net by white list, reject rete mirabile peer by blacklist, and experience while declining and automatically in white list, add rete mirabile peer user, guarantee client smoothness watch P2P video.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a method that realizes P2P flow optimization, is characterized in that, comprises the following steps:
Tackle by redirection of router the P2P resource request that client sends;
Initiate to connect to corresponding Tracker server the node that obtains the whole network according to described resource request, and according to the IP address ownership place of node, and the node threshold value based on user awareness of P2P business corresponding to described resource request, be the Node configuration white list of the whole network;
Return to the node in described white list to client.
2. method according to claim 1, is characterized in that, according to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to described resource request, for the step of the Node configuration white list of the whole network comprises:
The node of the whole network is added to blacklist;
Node in described blacklist is moved into white list step by step according to the IP address ownership place priority of node, until the number of nodes in white list reaches the described node threshold value based on user awareness.
3. method according to claim 1 and 2, is characterized in that, the described node threshold value based on user awareness adopts following methods to generate:
For P2P business setting start node threshold values and the service rate threshold values based on user awareness;
The node that equals start node threshold values with quantity docks and uses this P2P business;
Judge that whether service dial testing speed is lower than described service rate threshold values, if, improve start node threshold values, until service dial testing speed is higher than described service rate threshold values, and the start node threshold value after improving is defined as to the node threshold value based on user awareness of this P2P business.
4. method according to claim 3, it is characterized in that, described method also comprises: return after the node in described white list to client, describedly judge that service dial testing speed, whether lower than the step of described service rate threshold values, upgrades the described node threshold value based on user awareness by continuing to carry out.
5. method according to claim 4, is characterized in that, returns after the node in described white list to client, and when upgrading appears in the described node threshold value based on user awareness, described method also comprises:
According to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to this resource request after upgrading, amendment white list and blacklist;
Return to the node in amended white list to client.
6. a device of realizing P2P flow optimization, is characterized in that, comprising:
Blocking module, the P2P resource request sending for tackle client by redirection of router;
Node scan module, for initiating to connect to corresponding Tracker server the node that obtains the whole network according to described resource request, and according to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to described resource request, be the Node configuration white list of the whole network;
Scheduler module, for returning to the node of described white list to client.
7. device according to claim 6, is characterized in that, described node scan module is used for:
The node of the whole network is added to blacklist;
Node in described blacklist is moved into white list step by step according to the IP address ownership place priority of node, until the number of nodes in white list reaches the described node threshold value based on user awareness.
8. according to the device described in claim 6 or 7, it is characterized in that, described device also comprises testing module, for:
For P2P business setting start node threshold values and the service rate threshold values based on user awareness;
The node that equals start node threshold values with quantity docks and uses this P2P business;
Judge that whether service dial testing speed is lower than described service rate threshold values, if, improve start node threshold values, until service dial testing speed is higher than described service rate threshold values, and the start node threshold value after improving is defined as to the node threshold value based on user awareness of this P2P business.
9. device according to claim 8, is characterized in that, described testing module also for:
When described scheduler module is returned to client after the node in described white list, by continuing to judge whether service dial testing speed upgrades the described node threshold value based on user awareness lower than described service rate threshold values.
10. device according to claim 9, is characterized in that, described node scan module also for:
When described scheduler module is returned to client after the node in described white list, and when upgrading appears in the described node threshold value based on user awareness, according to the IP address ownership place priority of node, and the node threshold value based on user awareness of P2P business corresponding to this resource request after upgrading, amendment white list;
Described scheduler module is used for: the node that returns to amended white list to client.
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| CN113453038A (en) * | 2021-06-25 | 2021-09-28 | 桂林电子科技大学 | Effectiveness optimal collaborative cache management method under CDN-P2P hybrid architecture |
| CN113453038B (en) * | 2021-06-25 | 2022-03-29 | 桂林电子科技大学 | Effectiveness optimal collaborative cache management method under CDN-P2P hybrid architecture |
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