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NANOG Meeting Presentation Abstract

Quaking Tables: The Taiwan Earthquakes and the Internet Routing Table
Meeting: NANOG39
Date / Time: 2007-02-05 9:45am - 10:15am
Room: Osgoode Ballroom
Presenters: Speakers:

Todd Underwood, Renesys Corporation

Todd Underwood is in charge of operations, and peering for Renesys. Before that he was CTO of Oso Grande, a New Mexico ISP. He has a background in systems engineering and security and has worked on a variety of systems architecture and scalability problems. Todd has presented work related to Internet routing dynamics and relationships at NANOG and various peering forums (LINX, S&D, NOTA). Todd has a BA in Philosophy from Columbia University and a MS in Computer Science from University of New Mexico.

Alin Popescu, Renesys Corporation

Alin Popescu is a member of the engineering team at Renesys. His specialties include implementating statistical and learning algorithms and developping system architectures for BGP data analysis. Before joining Renesys, Alin earned a Ph.D. in Computer Science from Dartmouth College.

Earl Zmijewski, Renesys Corporation

Earl Zmijewski is responsible for Renesys\'s professional services. He has nearly 20 years of experience encompassing scientific computing and most areas of IT, with particular emphasis on networking and security. Before Renesys, Earl was IT Director at Fluent Inc., a computational fluid dynamics software company, where he was instrumental in establishing new offices throughout the US, Europe and Asia and in the promotion and implementation of Linux clustering technologies. He was also principal architect in the design of Fluent\'s networks and Internet security posture. Before that, Earl held various academic positions at Cornell University, University of California, and James Madison University. Earl has a PhD and MS in Computer Science from Cornell University and an MS and BA in Mathematical Sciences from The Johns Hopkins University.
Abstract: Six large quakes hit Taiwan in rapid succession on Dec 26, 2006. As a result, at least six major cables were severed causing major disruption to Internet routing. Using internet routing data from 150+ sessions, we look at the effects of these events on routing. We look at instability and outages both, and find that over 19K networks were impacted by the event, including, at peak level, almost 4k networks unreachable. We find that the event is more complicated, and more interesting, than some previous disasters because of the compound nature of the underlying failure (six cables). In particular, the onset of the event is less clearly tied to the timing of the quakes, and the recovery is more complicated as well. Finally, we look at the winners and the losers in the event, from an autonomous system perspective and from a country perspective.
Files: pdfQuaking Tables(PDF)
youtubeQuaking Tables
Sponsors: None.

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