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Discovery
Mysteries of the Unregulated Internet

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Image showing a visualization study of inbound traffic on the NSFNET T1 backbone for September 1991.

This image is a visualization study of inbound traffic measured in billions of bytes on the NSFNET T1 backbone for the month of September 1991. The traffic volume range is depicted from purple (zero bytes) to white (100 billion bytes). It represents data collected by Merit Network, Inc.

Credit: Donna Cox and Robert Patterson, courtesy of the National Center for Supercomputing Applications (NCSA) and the Board of Trustees of the University of Illinois


Download the high-resolution JPG version of the image. (690 KB)

Use your mouse to right-click (or Ctrl-click on a Mac) the link above and choose the option that will save the file or target to your computer.



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National Science Foundation Computer & Information Science & Engineering (CISE)
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Last Updated:
Oct 27, 2008
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Last Updated: Oct 27, 2008