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Internet Atlas Gallery

Layout Showing the Major ISPs

Bill Cheswick, Bell Labs and Hal Burch, CMU
Lucent Technologies Bell Labs Innovations
Carnegie Mellon University (CMU) Computer Science Dept.

URL: https://www.bell-labs.com/about/history/#gref

Visualization Thumbnail

Evaluation

Strengths:
(Strength1): It is possible to see multiple groupings at the same time. (Strength2): Collected data is available for analysis over time.

Issues:
(Issue1): Graph shows IP path connectivity only, not actual traffic on physical links.
(Issue2): Graph reflects only outgoing packet paths. The incoming path is often different, as ISP interconnect agreements often divert traffic through different connections.
(Issue3): Graph doesn't include networks announced in the core routing tables but not contained in the routing arbiter database. Preliminary analysis suggests that these omissions may account for 20% of IP networks.

Full-Size Visualization

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