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Internet Atlas Gallery

NSFNET growth until 1995

Donna Cox and Robert Patterson
The National Center for Supercomputing Applications (NCSA),
National Science Foundation's Supercomputer Centers Program
University of Illinois at Urbana-Champaign

Visualization Thumbnail Data
Data Sources:
(Source1): Traffic bandwidth in bytes passing through each of the backbone nodes was provided by Merit Network, Inc., NCAR, and NASA JPL. During December 1994, total inbound traffic on the backbone was 18.5 trillion bytes.
Data Aggregation:
(Aggregate1): Networks that exist in the same city and report to the same backbone node are aggregated into a single colored line. During December 1994, (for byte traffic into the ANS/NSFNET T3 backbone from its client networks), 24,435 domestic client networks were aggregated into 12,177 virtual traffic connections.
Data Filters:
(Filter1): Intermediate connections are removed so that only a hypothetical direct connection between each node of the backbone and all of its clients is displayed.
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