Peer to Peer Networks

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P2P Networks are as old as the Internet itself (D. Milojicic). The original design of the Internet was centered on a Peer-to-Peer system. ARPANET connected its first few hosts as computing peers with equal status and not in a master/slave or client/server relationship.


The latest applications such as Napster, Gnutella, iMesh, Audiogalaxy Satellite, and KaZaA has led to the reemergence of the P2P networks and since then P2P networks have been the centerpieces of intellectual property lawsuits, especially those involving illegally downloaded music. But P2P is about much more than violating the copyright of record labels. Many in the industry consider the Peer-to-Peer network as an emerging paradigm shift, which could revolutionize the IT industry by offering better - Performance and Price/performance, Scalability, Fault Tolerance and Deployment Flexibility. Peer-to-Peer networks are transient Internet networks that allow computer users to connect with each other and use sophisticated searching techniques to directly access and download files from one another's hard drives. The peers communicate directly among themselves and can assume a role of provider, a consumer or a registrar depending upon what is most efficient for the network.
Distributed network architecture may be called a Peer-to-Peer (P2P) network, if the participants share a part of their own hardware resources (processing power, storage capacity, network link capacity, printers,). These shared resources are necessary to provide the Service and content offered by the network (e.g. file sharing or shared workspaces for collaboration). ...
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