Peer-to-peer applications such as Napster [4], Freenet [1], and Gnutella [2], [7] have gained much attention recently. These applications are mainly designed and used for largescale sharing of MP3 \ufb01les. In such systems, end-hosts self-organize into an overlay network and share content with each other. Compared to the traditional client-server model, \ufb01les are served in a distributed manner and replicated among the network on demand. Since hosts participating in peer-to-peer (P2P) networks also devote some computing resources, such systems scale with the number of hosts in terms of hardware, bandwidth, and disk space. With the wide deployment of P2P applications, the P2P traf\ufb01c is becoming a growing portion of the Internet traf\ufb01c. There has been very little examination of P2P traf\ufb01c patterns and how they differ from traditional service models. Studying and understanding P2P traf\ufb01c is thus important to provide ef\ufb01cient application-level content location and routing within the network.<\/p>\n","protected":false},"excerpt":{"rendered":"
Peer-to-peer applications such as Napster [4], Freenet [1], and Gnutella [2], [7] have gained much attention recently. These applications are mainly designed and used for largescale sharing of MP3 \ufb01les. In such systems, end-hosts self-organize into an overlay network and share content with each other. 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