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Summary: A Low Latency, Loss Tolerant Architecture and Protocol for Wide Area Group
Communication
Yair Amir, Claudiu Danilov, Jonathan Stanton y
Department of Computer Science
Johns Hopkins University
3400 North Charles St.
Baltimore, MD 21218 USA
fyairamir, claudiu, jonathang@cs.jhu.edu
Abstract
Group communication systems are proven tools upon
which to build faulttolerant systems. As the demands for
faulttolerance increase and more applications require reli
able distributed computing over wide area networks, wide
area group communication systems are becoming very use
ful. However, building a wide area group communication
system is a challenge. This paper presents the design of
the transport protocols of the Spread wide area group com
munication system. We focus on two aspects of the system.
First, the value of using overlay networks for application
level group communication services. Second, the require
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