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Summary: Multihoming Performance Benefits:An Experimental Evaluation of
Practical Enterprise Strategies
Aditya Akella, Srinivasan Seshan Anees Shaikh
Dept. of Computer Science Network Software and Services
Carnegie Mellon University IBM T.J. Watson Research Center
Pittsburgh, PA 15213 Hawthorne, NY 10532
Abstract
Multihoming is increasingly being employed by large en
terprises and data centers as a mechanism to extract good
performance from their provider connections. Today, mul
tihomed endnetworks can employ a variety of commercial
route control products to optimize performance over multi
ple ISP links. However, little is known about the mechanisms
employed by such products and their relative tradeoffs.
In this paper, we propose and evaluate a wide range prac
tical schemes that could go into the design of a route con
trol device and analyze their tradeoffs. We implement the
proposed schemes on a Linuxbased Web proxy and per
form a tracebased emulation of their relative performance
benefits. We show that both passive and active monitor
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