Putting BGP on the Right Path: A Case for Next-Hop Routing
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Date: 02-16-2010
Start Time:
2:00pm
End Time: 3:00pm
Speaker: Michael Schapira
From:
Yale University and UC Berkeley
Location: EE Conference Room
Hosted by:
Prof. Gil Zussman
Abstract:
BGP is plagued by many serious problems (protocol
divergence, software bugs, misconfigurations, attacks, and more). Rather
than continuing to add mechanisms to an already complex protocol, or
redesigning interdomain routing from scratch, we propose making BGP
*simpler*. We advocate a transition from today's path-based routing to
a solution where ASes select and export routes based only on
the neighboring ASes. Next-hop routing leads to simpler router
implementation and configuration, and naturally expresses bilateral
business relationships. Next-hop routing provably achieves faster
convergence and incentive compatibility, side-stepping two major
problems with today's BGP. Next-hop routing also allows
operators to achieve their traffic-engineering and
security goals, and enables multipath routing for additional
performance and reliability benefits.