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Peer-to-Peer Internet Networks
Steve Staten, Cevdet Bulut, Seth Raleigh
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Peer-to-Peer Networks
Created when two or more PCs are connected and share resources without going through a separate server computer Examples: File sharing, telephony, media streaming, discussion forums
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Pure P2P No centralized server
Control and data are completely distributed Every node is a peer Examples: Gnutella, Freenet, KaZaA
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Hybrid P2P Centralized server provides data
Communication is directly between peers Example: Napster
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Advantages Scalable – system that can adapt easily to increased demands Everyone brings their own resources Robust No central bottleneck No central point of failure
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Advantages Less server dependent Reduce Overhead Costs Open
multiple source The exact opposite of FTP (single source, single server)
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Disadvantages Ease of copyright violations Viruses/Spyware
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Business Over 200 companies have invested over $400 million in P2P networks Potential Applications: Search engines E-commerce Joost
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Questions???
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