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Summary: A Comparison of Overlay Routing and
Multihoming Route Control
Aditya Akella Jeffrey Pang
Bruce Maggs y Srinivasan Seshan
Carnegie Mellon University
faditya, jeffpang,srini+, bmmg@cs.cmu.edu
Anees Shaikh
IBM T.J. Watson Research Center
aashaikh@watson.ibm.com
ABSTRACT
The limitations of BGP routing in the Internet are often blamed for
poor endtoend performance and prolonged connectivity interrup
tions. Recent work advocates using overlays to effectively bypass
BGP's path selection in order to improve performance and fault
tolerance. In this paper, we explore the possibility that intelligent
control of BGP routes, coupled with ISP multihoming, can provide
competitive endtoend performance and reliability. Using exten
sive measurements of paths between nodes in a large content distri
bution network, we compare the relative benefits of overlay routing
and multihoming route control in terms of roundtrip latency, TCP
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