Credit-Based Flow Control for ATM Networks Revisited

Joseph B. Evans, Luiz Dasilva, Hongbo Zhu, Victor S. Frost

University of Kansas

Experiments with Flow Control

  • TCP and UDP streams to single receiver
  • hosts A and B are local, 100 km link to C
  • need about 420 credits to utilize long link, use 500 credits

    • Results

  • performance with multiple TCP streams excellent
  • UDP and TCP streams well balanced
    • Scenario C-A Throughput B-A Throughput Aggregate
    C-A TCP, B-A TCP 58.54 Mb/s 56.30 Mb/s 114.84 Mb/s
    C-A TCP, B-A UDP 55.73 Mb/s 41.22 Mb/s 96.95 Mb/s
    C-A UDP, B-A UDP 44.48 Mb/s 44.22 Mb/s 88.70 Mb/s

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    Send comments to Joseph B. Evans, <evans@eecs.ku.edu> .