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NANOG Meeting Presentation Abstract

Internet Captivity and De-peering
Meeting: NANOG45
Date / Time: 2009-01-27 3:00pm - 3:30pm
Room: La Fiesta Theater
Presenters: Speakers:

Martin A. Brown, Renesys Corporation

Martin 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. <BR> 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.

Clint Hepner, Renesys Corporation

Clint Hepner is a member of the engineering team at Renesys, where he focuses<BR> on Interent mapping and event detection. He graduated from Dartmouth College<BR> in 2005 with a M.S. in Computer Science.

Alin Popescu, Renesys Corporation

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.
Abstract: De-peering events are bad, but when the combatants involved are transit-free networks, they can be catastrophic to captive customers. Such events break the promise of One Internet by preventing single-homed prefixes in each of the de-peered parties' transit cones from exchanging traffic with each other.



A recent de-peering event illustrated the perfect storm scenario: two transit-free networks--Sprint (AS 1239) and Cogent (AS 174)--de-peered, partitioning the Internet in the process. We will present an analysis of this particular event: timeline, geographic scope, winners and losers.



This event emphasizes the risk of being dependent (transitively single-homed) on a single AS for Internet connectivity. We will take a look at some of the biggest networks and quantify the exposure of their transitive customers to Internet partition events.
Files: pdfBrown Internet Peering N45(PDF)
youtubeInternet Captivity and De-peering
Sponsors: None.

Back to NANOG45 agenda.

NANOG45 Abstracts

  • Introduction to LISP
    Speakers:
    David Meyer, Cisco Systems/University of Oregon; Dino Farinacci, Cisco Systems;
  • Introduction to LISP
    Speakers:
    David Meyer, Cisco Systems/University of Oregon; Dino Farinacci, Cisco Systems;
  • Welcome Party
    Speakers:
    Sponsor Dominican Government, through the Dominican Republic, Export & Investment Center (CEI-RD)None; .
  • DNSSEC
    Speakers:
    Kevin Oberman, ESnet; Chris Griffiths, Comcast Cable;
  • DNSSEC
    Speakers:
    Kevin Oberman, ESnet; Chris Griffiths, Comcast Cable;
  • Peering 101
    Speakers:
    Kevin Oberman, ESnet; William B. Norton, InterStream;
  • Peering 101
    Speakers:
    Kevin Oberman, ESnet; William B. Norton, InterStream;
  • ISP Security
    Speakers:
    Eric JacksonArbor Networks; .
    Warren Kumari, Google;
  • ISP Security
    Speakers:
    Eric JacksonArbor Networks; .
    Warren Kumari, Google;
  • 4-byte ASNs
    Speakers:
    Greg Hankins, Force10 Networks; Chris MalayterSwitch and Data; .
  • 4-byte ASNs
    Speakers:
    Greg Hankins, Force10 Networks; Chris MalayterSwitch and Data; .
  • Peering
    Speakers:
    Aaron Hughes, Cariden Technologies, LMCO, UnitedLayer;

 

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