Abstract
Peer-to-Peer (P2P) service may damage the interests of Internet Service Provider (ISP) because P2P traffic usually takes a lot of network link bandwidth and even overwhelms some network links. Aimed at the problem, mainstream solutions are usually optimizing P2P traffic through the interaction between applications and underlying network. However, current solutions still have two aspects of defects: one is that the interacted underlying network status information is immutable and can’t reflect the real-time dynamic changes because it is usually configured by ISP. The other is that some solutions may cause excessive traffic localization, which may greatly influence other services in the local network. In order to improve the above two defects and provide P2P users with better service experience, we propose an enhanced application layer traffic optimization scheme, in which more valuable network status information of underlying network is dynamically calculated and provided to P2P application. Extensive simulations demonstrate that our P2P traffic optimization scheme is superior to other solutions in terms of available bandwidth, resource transmission delay and user service experience.
Highlights
Peer-to-Peer (P2P) is a technology that users share resource without relay devices
Peer-to-Peer (P2P) service may damage the interests of Internet Service Provider (ISP) because P2P traffic usually takes a lot of network link bandwidth and even overwhelms some network links
In order to optimize P2P traffic while ensuring good user service experience, we propose a P2P traffic optimization scheme based on dynamic network information awareness, which guides P2P traffic through the cooperation of P2P overlay and underlying network
Summary
Peer-to-Peer (P2P) is a technology that users share resource without relay devices. P2P has many advantages, such as extensible, robust and low cost. The main idea is to assign coordinates for P2P nodes, and estimate neighbor nodes according to the coordinates These schemes can localize P2P traffic based on the inferred underlying network information to reduce inter-domain P2P traffic. The other kinds of P2P traffic optimization schemes are called collaborative schemes, including Oracle [4], P4P [5], and ALTO [6] [7], which obtain underlying network topology information and link status information through the interaction between P2P overlay and underlying network to provide optimization guidance for P2P traffic. P2P traffic is optimized by selecting appropriate neighbor peers based on dynamic underlying network status information obtained from these PIDs
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