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Can ISPs and P2P Users Cooperate for Improved Performance?

Can ISPs and P2P Users Cooperate for Improved Performance?. Vinay Aggarwal, Anja Feldmann (German Telecom Laboratories). Christian Scheideler (TU, Munchen). ACM SIGCOMM Computer Communication Review. Problem: file content available within the querying node’s ISP is downloaded

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Can ISPs and P2P Users Cooperate for Improved Performance?

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  1. Can ISPs and P2P Users Cooperate for Improved Performance? Vinay Aggarwal, Anja Feldmann (German Telecom Laboratories) Christian Scheideler (TU, Munchen) ACM SIGCOMM Computer Communication Review

  2. Problem: file content available within the querying node’s ISP is downloaded from a node outside the ISP

  3. Reason: P2P networks employ arbitrary peer selection procedure

  4. Solution: Oracle Service

  5. Solution: Oracle Service

  6. Solution: Oracle Service

  7. Solution: Oracle Service

  8. Benefits: • P2P users: improved query and file transfer performance • 2. ISPs: decreased cost of inter-ISP traffic and improved fairness

  9. Implementation: Set of replicated servers within each ISP or Web Service

  10. Evaluation Metrics

  11. Simulations Impact of the oracle: 1) on network graph properties 2) on a real P2P file sharing system Simulations are based on current ISP topology (derived from BGP routing information)

  12. Impact of oracle on network graph properties

  13. Impact of oracle on real P2P file sharing system Gnutella protocol was modified to use oracle service

  14. Gnutella overlay topology

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