Congestion Distance Based BitTorrent-Like P2P Traffic Optimization

摘要

A large number of P2P traffic brings great impact on the bearer network, so how to utilize network bandwidth efficiently has become a common trade problem of Internet Service Providers (ISP) and terminal users. A P2P traffic optimization model is derived from the aims of ISPs and users. Minimizing the congestion distance is chosen as the main objective which not only can represent the requirements of two sides, but also can be distributed implemented easily. According the optimization model, Bittorrent-like P2P system is improved. The distance aware peer selection and secondary sorting choking/unchoking algorithms are proposed. The experiments results show that this optimization can reduce inter autonomous system (AS) traffic effectively and respond to network congestion automatically.