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« NANOG43 Home Peering Wars: Lessons Learned from the Cogent-Telia De-peeringMartin Brown, Earle Zmijewski, and Alin Popescu, Renesys CorporationPresentation Date: June 2, 2008, 11:30 AM - 12:00 PMRoom: Salon D/E Foyer Abstract: We review the recent Cogent-Telia de-peering, including the countries impacted and various conjectures about the underlying business motivations. Once the peering session came back up, we observe Telia selecting many more routes to Cogent and Cogent selecting many fewer from Telia, implying this disagreement was at least partially resolved by adjusting peering ratios. Finally, we observe the new peering sessions that were established during the outage by both combatants and shifts in routing to other players even once service was restored. Martin Brown Biography: Martin Brown has been working with IP networking under Linux for more than ten years. As part of the Renesys development team, he works in BGP data analysis. His expertise involves OSS development in systems integration and infrastructure particularly in networking contexts. Former work has involved network security, firewalls, virtual private networks, quality of service and managing and scaling distributed systems. He holds an M.A. in German from the University of Wisconsin, Madison. Earle Zmijewski Biography: Earl Zmijewski VP and General Manager, Internet Data Services is responsible for all of Renesys's Internet Data software, services and operations. 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. Alin Popescu Biography: Alin Popescu is a member of the engineering team at Renesys. His specialties include implementing statistical and learning algorithms and developing system architectures for BGP data analysis. Before joining Renesys, Alin earned a Ph.D. in Computer Science from Dartmouth College. Archived Files: NANOG43 Abstracts
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