ファイル共有
File sharing constitutes a large fraction of Internet traffic. The prevalent technology for file sharing is the BitTorrent protocol, which is a peer-to-peer (P2P) system mediated through indexing sites that provide resource directories. The traffic patterns of P2P systems are often described as problematic and causing congestion. According to a Sandvine Research in 2013, Bit Torrent’s share of Internet traffic decreased by 20% to 7.4% overall, reduced from 31% in 2008.