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Advances in TCP Optimization and Network Tool Evaluation: Net100 Status Update (March 2002)

This report outlines the key focus areas and ongoing activities of the ORNL Net100 project as of March 26, 2002. Major topics include TCP optimizations using AIMD and VMSS, network tool evaluation through iperf and web100, and enhancements in bulk transfer capabilities. The report covers updates since the Denver meeting, discusses future work needed, and highlights various testing efforts related to Web100 tuning and integration. The strategic roadmap for year one involves systematic testing and outreach efforts to enhance network performance.

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Advances in TCP Optimization and Network Tool Evaluation: Net100 Status Update (March 2002)

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  1. ORNL Net100 status March 26, 2002

  2. ORNL Net100 • Focus Areas (first year) • TCP optimizations (WAD, AIMD, VMSS, ns, atou) • Network tool evaluation (iperf, webd, java/web100) • Bulk transfer optimization (NERSC/ORNL) • Today’s agenda • Activities since Denver meeting • Current activities / WAD status • Future work/needs • Nagi’s update

  3. ORNL activities since Denver meeting • Web100 tuning (manual) of HSI transfer (NERSC/ORNL), SC2001 • NISTNet testbed • SCTP study/report • autotuning WAD (version 0) • TCP tuning (AIMD, VMSS) with ns and atou • Web100 event notification • Evaluation of Linux 2.4 tuning • DRS testing (ESnet, NISTNet), integration with Web100 (2.4.16) • TCP Vegas testing/porting (ns, Linux, atou) • atou tech report • Outreach: Net100 talks, web pages

  4. AIMD and Virtual MSS experiments experiments with atou between NERSC and ORNL

  5. WAD • Version 0 • tune unknowing sender/receiver • static config file with “tuning info” • tuned parallel iperf flows • To be done (year 1) • V1: use netlogger data to get tuning data (like Enable) at start of flow • add AIMD/VMSS tuning to kernel and tuning info to config file • systematic tests • V2: tune during flow, using web100 polling and data from remote WAD

  6. Rest of year ... • WAD enhancement and testing • integration of metrics with tuning • webd integration ? • SC2002 paper prep • gridftp tuning (or other bulk transfer demo ??) • TCP optimization studies (AIMD, Vegas, ?) • AIX web100 port ? • ESnet jumbo frame and ECN tests ? • ESnet router data ? • Addition of postdoc • Outreach: ESnet ESCC meeting (April), Internet2 (Jul/Aug), SC2002

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