<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Department colloquium talk:<div><br></div><div>Speaker: Professor Tom Anderson, U. Washington</div><div>Title: Towards a Highly-Reliable Internet</div><div>Date/time: 4:30-5:30pm Monday March 28</div><div>Place: CS 105 (small auditorium), with tea 4-4:30pm in the CS tea room</div><div><br></div><div>Abstract:</div><div><br></div><div>Internet availability -- the ability for any two nodes in the Internet
to communicate — is essential to being able to use the Internet for
delivery critical applications such as real-time health monitoring and
response. Despite massive investment by ISPs worldwide, Internet
availability remains poor, with literally hundreds of outages occurring
daily, even in North America and Europe. Some have suggested that
addressing this problem requires a complete redesign of the Internet,
but in this talk I will argue that considerable progress can be made
with a small set of backwardly compatible changes to the existing
Internet protocols. We take a two-pronged approach. Many outages occur
on a fine-grained time scale due to the convergence properties of BGP,
the Internet’s interdomain routing system. We describe a novel set of
additions to BGP that retains its structural properties, but applies
lessons from fault tolerant distributed systems research to radically
improve its availability. Other outages are longer-lasting and occur
due to complex interactions between router failures and router
misconfiguration. I will describe some ongoing work to build an
automated system to quickly localize and repair these types of problems.
<div><br class="webkit-block-placeholder"></div><p>
Thomas Anderson is the Robert E. Dinning Professor of Computer Science
and Engineering at the University of Washington. His research interests
span all aspects of building practical, robust, and efficient computer
systems, including distributed systems, operating systems, computer
networks, multiprocessors, and security. He is an ACM Fellow, winner of
the ACM SIGOPS Mark Weiser Award, winner of the IEEE Bennett Prize,
past program chair of SIGCOMM and SOSP, and he has co-authored seventeen
award papers. </p></div></body></html>