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SUMMARY:Towards a Highly Available Internet - Thomas Anderson (University 
 of Washington)
DTSTART:20111027T150000Z
DTEND:20111027T160000Z
UID:TALK33284@talks.cam.ac.uk
CONTACT:Eiko Yoneki
DESCRIPTION:Internet availability-the ability for any two nodes in the Int
 ernet to\ncommunicate-is essential to being able to use the Internet for d
 elivery\ncritical applications such as real-time health monitoring and res
 ponse.\nDespite massive investment by ISPs worldwide\, Internet availabili
 ty remains\npoor\, with literally hundreds of outages occurring daily\, ev
 en in North\nAmerica and Europe. Some have suggested that addressing this 
 problem\nrequires a complete redesign of the Internet\, but in this talk I
  will argue\nthat considerable progress can be made with a small set of ba
 ckwardly\ncompatible changes to the existing Internet protocols. We take a
  two-pronged\napproach. Many outages occur on a fine-grained time scale du
 e to the\nconvergence properties of BGP\, the Internet's interdomain routi
 ng system. We\ndescribe a novel set of additions to BGP that retains its s
 tructural\nproperties\, but applies lessons from fault tolerant distribute
 d systems\nresearch to radically improve its availability. Other outages a
 re\nlonger-lasting and occur due to complex interactions between router fa
 ilures\nand router misconfiguration. I will describe some ongoing work to 
 build an\nautomated system to quickly localize and repair these types of p
 roblems.\n\n\nSpeaker Bio\n\nThomas Anderson is the Robert E. Dinning Prof
 essor of Computer Science and\nEngineering at the University of Washington
 . His research interests span all\naspects of building practical\, robust\
 , and efficient computer systems\,\nincluding distributed systems\, operat
 ing systems\, computer networks\,\nmultiprocessors\, and security. He is a
 n ACM Fellow\, winner of the ACM SIGOPS\nMark Weiser Award\, winner of the
  IEEE Bennett Prize\, past program chair of\nSIGCOMM and SOSP\, and he has
  co-authored seventeen award papers. More\ninformation about his research 
 is available on http://www.cs.washington.edu/homes/tom. \n
LOCATION:FW26\, Computer Laboratory\, William Gates Builiding
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