P2P flow optimization method and system based on distributed index server architecture

Abstract

The invention discloses P2P flow optimization method and system based on a distributed index server architecture. The method comprises the following steps of: on the basis of the P4P concept, partitioning the network into regions and deploying policy servers and positioning servers by an Internet service provider, and deploying index servers in each region by a P2P content provider; positioning the affiliated region and the local index server by a terminal in each region; when possessing new resources, reporting information of the new resources to the local index server by the terminal in each region, and maintaining index information established by the information of the new resources by the index server and acquiring policy matrix information by the aid of the policy server; downloadinga seed file from a seed server by the terminal and transmitting request index information to the local index server according to the hash value in the seed file, and proportionally returning the index information to the terminal by the local index server according to the policy matrix; and getting connection with the corresponding terminal by the terminal according to the returned index information and downloading the resources.

Description

technical field [0001] The present invention relates to the P2P application field of digital media on the Internet, in particular to a P2P traffic optimization method and system under a distributed index server framework incorporating the P4P idea. Background technique [0002] With the rapid development of Internet and digital technology, P2P technology has been widely used as a digital media content distribution technology. P2P is the abbreviation of English Peer-to-Peer, also known as "peer-to-peer". "Peer-to-peer" technology is a new network technology. Different from the traditional C / S structure, P2P technology makes full use of the computing power and bandwidth of users in the network, instead of gathering service requirements on fewer servers. While downloading, it also provides uploading services for other users. In this way of downloading, the more people there are, the faster the speed will be. Generally speaking, as the number of users increases, the system's s...

AI Technical Summary

Problems solved by technology

Although P2P technology has many advantages over the traditional C / S structure, it also has some problems: on the one hand, due to its overlapping network characteristics, P2P lacks the understanding of the underlying network topology information, and often uses random Peer selection methods, resulting in A large amount of cross-domain traffic, especially a large amount of Internet backbone traffic, brings huge operating costs to network operators and is not conducive to ensuring the performance of P2P downloads. In addition, it is easy to cause network congestion. Other traditional applications (WWW, Email, etc.) On the other hand, P2P often adopts a single index server architecture, which is likely to cause problems such as performance bottlenecks and single point failures, and affect the scalability of the system.

However, the current P4P research is mainly concentrated in the P2P system with a single index server, and there are still problems such as performance bottlenecks and single point failures.

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