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Modeling TCP Latency

Modeling TCP Latency. Cardwell,Savage, and Anderson INFOCOM ’ 2000. Abstract. I. Introduction. Many of today ’ s popular Internet applications, including WWW, e-mail, FTP, Usenet news, remote login, use TCP as a transport protocols.

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Modeling TCP Latency

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  1. Modeling TCP Latency Cardwell,Savage, and Anderson INFOCOM’2000

  2. Abstract

  3. I. Introduction • Many of today’s popular Internet applications, including WWW, e-mail, FTP, Usenet news, remote login, use TCP as a transport protocols. • Analytical models proposed in terms of round trip time and packet loss rate • Achieving better understanding of the sensitivity of TCP performance to network parameters • Helping the design of active queue management schemes and TCP-friendly multicast protocols

  4. The analytical models proposed to date can be split into two broad classes: • Models for steady-state bulk transfer throughput that suffers at least one loss • But, the majority of TCP flows traveling the wide-area Internet are very short with mean sizes around 10KB. • They often spend their entire lifetime in the slow start mode, without suffering a single loss. • Models for short flows that suffer no packet loss • They Does not consider delayed acknowledgements, sender or receiver buffering limitations, alternative initial congestion windows, or losses during connection establishment, each of which can have a dramatic performance impact.

  5. This paper proposes a new model for TCP performance that integrates the results from both classes of models.

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