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Animation of AS core over 18 months
Animation of AS core over 18 months from July 2000 to January 2002 (updated April 2002)
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Animation of AS core over 18 months Animations created by Oliver Jakubiec (CAIDA at SDSC). Copyright UC Regents 2002.
CAIDA animated its observed AS core outdegree data between July 2000 and January 2002. As with the still image above, each AS represents a block of IP addresses controlled by a single organization, and relative outdegree reflects the richness of the connectivity of different ASes. Note that the large jump in connectivity that you will observe in July 2001 was the result of a substantial increase in sampling coverage by CAIDA monitors. Interestingly, the relative ranking of observed connectivity among major ISPs remained essentially unchanged.

The animation is available in two formats: flipbook/flic (156.5 MB) and animated gif (164.5 MB)


  • View as flipbook animation (Preferred format 156.5 MB .fli)
    Note: The recommended way to view the flipbook format is to use xanim on a Unix platform, or QuickTime Player 5 on Macintosh and Windows boxes. Use the "open URL" feature of a QuickTime player and paste in the URL.
  • View as animated gif (164.5 MB .gif)
    Note: The animated gif does not display correctly in all browsers.
  Last Modified: Fri Jun-12-2009 14:30:5 PDT
  Page URL: http://www.caida.org/research/topology/as_core_network/animation.xml