[talks] 1:30-2:30pm Fri Dec 5 talk on Effective Diagnosis of Routing Disruptions from End Systems

Jennifer Rexford jrex at CS.Princeton.EDU
Tue Nov 18 21:52:34 EST 2008

Invited talk, note the unusual room (CS 102).  Please let me know if you 
would like to meet with Morley Mao while she is here. 

Speaker: Professor Morley Mao, U. Michigan
Title: Effective Diagnosis of Routing Disruptions from End Systems
Date/time: 1:30-2:30pm Friday December 5
Room: 102 in the CS building

Internet routing events are known to introduce severe disruption to
application performance. So far effective diagnosis of routing events
has relied on proprietary ISP data feeds, resulting in limited
ISP-centric views not easily accessible by customers or other ISPs.
In this work, we propose a novel approach to diagnosing significant
routing events associated with any large networks from the perspective
of end systems. Our approach is based on scalable, collaborative probing
launched from end systems and does not require proprietary data from ISPs.
Using a greedy scheme for event correlation and root cause inference,
we can diagnose both interdomain and intradomain routing events.
Unlike existing methods based on passive route monitoring, our approach
is able to measure the impact of routing events on end-to-end network
performance as well. We demonstrate the effectiveness of our approach
by studying five large ISPs over more than three and half months. We
validate the accuracy of our approach by comparing with the existing
ISP-centric method and with events reported on NANOG mailing lists.
Our work is the first to scalably and accurately diagnose routing events
associated with large networks purely from end systems.

Z. Morley Mao is an assistant professor of Computer Science
and Engineering at the University of Michigan.  Morley received
her Ph.D., M.S., and B.S. from the University of California at Berkeley. 
is a recipient of the NSF CAREER award in 2007, an IBM Faculty Award in 
and was recently named the Morris Wellman Faculty Development Professor.
Her research interests include network measurements, routing protocols,
distributed systems, and network security.

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