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Optimizing 10G Campus Connection Buffer Sizes for Efficient Data Transfer

Discover how to maximize 10G campus network connections through effective buffer management amid long delays, leveraging PerfSONAR tools and adjusting TCP settings. Gain insights from CENIC's shift to Foundry and explore strategies to address buffer limitations from vendors. Explore the impact of Ethernet flow control on data transfer efficiency. Learn more at http://yuba.stanford.edu/~yganjali/research/publications/Infocom-2006.pdf

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Optimizing 10G Campus Connection Buffer Sizes for Efficient Data Transfer

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  1. Speed match buffers Jim Warner UC Santa Cruz February 2010

  2. Solution searching for problem • Campus 10G connection in Nov 2009 • PerfSONAR might be useful • Q: What happens when a fast (10 Gb/s) source sends to a slow (Gb/s) client over a long delay path? • CENIC’s transition from Cisco to Foundry hinted this might be interesting.

  3. How much buffer to expect ??

  4. Not in the data sheet

  5. 1.6 Mbyte output buffer

  6. 1.6 MB to Seattle

  7. Buffer dialed up to 6 MB

  8. Same for Seattle

  9. Is there hope? • Vendors will not provide bigger buffers. $$$ and power • Ethernet flow control might help • Change TCP to make it less bursty http://yuba.stanford.edu/~yganjali/research/publications/Infocom-2006.pdf

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