BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Internet Optometry: Assessing the Broken Glasses in Internet Reach
 ability - Olaf Maennel (Loughborough University)
DTSTART:20091119T160000Z
DTEND:20091119T170000Z
UID:TALK20243@talks.cam.ac.uk
CONTACT:Eiko Yoneki
DESCRIPTION:Reachability is thought of as the most basic service provided 
 by\ntoday's Internet. Unfortunately\, this does not imply that the\ncommun
 ity has a deep understanding of it. Researchers and operators\nrely on two
  views of reachability to assess it: control/routing- and\ndata-plane meas
 urements.\n\nBoth control- and data-plane measurements suffer from differe
 nt\nbiases and have their own limited visibility. In this talk\, we\nillus
 trate some of these biases\, and show how to design controlled\nexperiment
 s which allow us to "see" through the limitations of\nprevious measurement
  techniques. For example\, we discover the extent\nof default routing and 
 its impact on reachability.  This explains\nsome of the unexpected results
  from studies that measured the\ncorrelation between the control and the d
 ata plane.\n\nBio: Olaf Maennel is a lecturer in computer science at Lough
 borough University\nsince September 2009. Before that he was at Deutsche T
 elekom Laboratories in\nBerlin\, Germany. From 2005 until 2008 he was a po
 st-doc researcher at the\nSchool of Mathematical Science of the University
  of Adelaide in South\nAustralia working with Matthew Roughan. He obtained
  his Ph.D. in 2005 from\nthe Technical University of Munich\, Germany\, in
  the group of Anja Feldmann.\nHis research interests are routing in core n
 etworks\, next generation\ninternet technology\, network debugging\, activ
 e routing measurements\, as well\nas configuration management. He also ser
 ves in the Internet Engineering Task\nForce (IETF) on IPv6 deployment and 
 A+P.\n\n
LOCATION:SS03\, Computer Laboratory\, William Gates Builiding
END:VEVENT
END:VCALENDAR