The Web100 Project: Documents


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MIB

TCP Extended Statistics MIB - Status page

Presentations

Internet2 Presentation - May 2002

Another presentation on what Web100 is and what problem it is trying to solve. It provided current status as of May 2002.

Joint Techs Presentation - May 2001

A nice overview of the problem Web100 is trying to solve and the project's current status.

Papers:

"Web100: Extended TCP Instrumentation for Research, Education and Diagnosis"

A paper by Matt Mathis, John Heffner, and Ragu Reddy on Web100 and how it can be used for research, education, and diagnosis.

High Bandwidth TCP Queuing

A preliminary version of Web100 autotuning is described in this paper by John Heffner.

Experiences Using Web100 for Host Tuning

A report from Tom Hacker, Brian Athey, and Jason Sommerfield on their experiences with Web100.

NSF Report Activities

NSF Report Findings

Current Web100 Statement of Work

While the national high-performance network infrastructure has grown tremendously both in bandwidth and accessibility, it is still common for applications, hosts, researchers and other users to be unable to take full advantage of this new and improved infrastructure. Without expert attention from network engineers, users are unlikely to achieve even 10 Mbps single stream TCP transfers, despite the fact that the underlying network infrastructure can support data rates of 100Mbps or more. On unloaded networks, this poor performance can be attributed primarily to two factors: host system software (principally TCP) that is optimized for low bandwidth environments and the lack of effective instrumentation and tools to diagnose performance issues at the end hosts.

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Web100 Concept Paper: When a typical academic researcher attempts to transfer large datasets using conventional vendor-supplied FTP-based programs on high-performance LAN or WAN networks that are purported to provide 100-Mbps (megabits/second) performance, the researcher is often lucky to see 10-Mbps actual transfer rates. This result is not unique to just FTP; similarly poor results are seen with almost all other out-of-the-box (and much custom) networking software.

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Paper Archive:

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Last Modified: 05/11/05 02:49PM

This material is based in whole or in part on work supported by the National Science Foundation under Grant No. 0083285. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).