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CS5229 Lecture 3: Congestion Avoidance and Control

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Wei Tsang Ooi
Wei Tsang Ooi
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Congestion Avoidance and Control 29 August 2008 NUS CS5229 Semester 1 2008/09 1
Van Jacobson, “Congestion Avoidance and Control”, SIGCOMM 1988 29 August 2008 NUS CS5229 Semester 1 2008/09 2
Fixes to TCP in BSD Handwaving arguments Less rigorous math Lots of “magical” hacks 29 August 2008 NUS CS5229 Semester 1 2008/09 3
cwnd: congestion window swnd: usable sending window rwnd: advertised receiver’s window 29 August 2008 NUS CS5229 Semester 1 2008/09 4
1986 29 August 2008 NUS CS5229 Semester 1 2008/09 5
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control
CS5229 Lecture 3: Congestion Avoidance and Control

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  • 1. Congestion Avoidance and Control 29 August 2008 NUS CS5229 Semester 1 2008/09 1
  • 2. Van Jacobson, “Congestion Avoidance and Control”, SIGCOMM 1988 29 August 2008 NUS CS5229 Semester 1 2008/09 2
  • 3. Fixes to TCP in BSD Handwaving arguments Less rigorous math Lots of “magical” hacks 29 August 2008 NUS CS5229 Semester 1 2008/09 3
  • 4. cwnd: congestion window swnd: usable sending window rwnd: advertised receiver’s window 29 August 2008 NUS CS5229 Semester 1 2008/09 4
  • 5. 1986 29 August 2008 NUS CS5229 Semester 1 2008/09 5