We have studied growth trends in the number of ASes seen advertised in the global routing system from different regional registries (similar to Geoff Huston’s 32-bit AS Number Report, but with per-registry trends). We used Routeviews and RIPE BGP dumps over the last 12 years, and Team Cymru’s WHOIS lookup service to map ASNes to registries as of March 2010. To our knowledge, historical data to map an ASN to a regional registry at any given time in the past is not available, so we cannot account for ASN movement between registries. More information about the data collection and pre-processing is in our IMC 2008 paper, “Ten Years in the Evolution of the Internet Ecosystem” and our supplemental data page.

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This post is our submitted response to NSF’s call for expressions of interest in the Future Internet Architectures summit, which i am attending this week.

What scientific contributions will you bring to the discussion about Future Internet architectures?

As scientists, we are compelled to explore how the peculiar structure relates to the function(s) of complex networks. Many complex networks in nature share the peculiar structural character of the Internet, but they also manifest phenomenal behavior: they efficiently route information without any observable routing protocol overhead. This achievement is currently beyond the reach of man-made networks. The Internet still uses a 30-year old routing architecture with fundamentally unscalable overhead requirements.  Yet in those 30 years, the Internet’s inter-domain topology has evolved toward a structure for which nature has superior routing technology, if only we can figure out how to use it!

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[Jump to a Top Ten item: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10]

#8: The opaqueness of the infrastructure to empirical analysis has generated many problematic responses from rigidly circumscribed communities earnestly trying to get their jobs done.

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[ in sept 2007 i was privileged to attend an invitation-only intensely interactive workshop on the topic of Internet infrastructure economics. participants included economists, network engineers, infrastructure providers, network service providers, regulatory experts, investment analysts, application designers, academic researchers/professors, entrepreneurs/inventors, biologists, oceanographers. almost everyone in more than one category. lots of bloggers. we were all asked to write up a summary of what we learned over the 2.5 days. with permission to anonymize workshop sources of my learnings and post them here. -k. ]

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i get this question a lot:

at the current churn rate/ratio, at what size does the
FIB need to be before it will not converge? (also sometimes pronounced ‘when will the current Internet routing architecture break?’)

a good question, has been asked many times, and afaik no one has provided any empirically grounded answer.

a few realities hinder our ability to answer this question.

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A reprint of a recent interview of kc claffy posted by the San Diego Supercomputer Center regarding the future of the Internet:

kc claffy has played a leading role in Internet research for more than a decade. She is the principal investigator for the Cooperative Association for Internet Data Analysis (CAIDA) which is based at SDSC and provides tools and analyses to promote a robust, scalable global Internet infrastructure. As a research scientist at SDSC her research interests include the collection, analysis, and visualization of workload, routing, topology, performance, and economic data on the Internet. She has been at SDSC since 1991 and holds a Ph.D. in Computer Science from UC San Diego.

Q: You co-founded the Cooperative Association for Internet Data Analysis, CAIDA, a little over 10 years ago. Can you tell us how CAIDA has evolved, and what you’re focusing on today?

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