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Summary: Protocols for Selection Among
Replicated Multicast Servers
Lenitra M. Clay
Mostafa H. Ammar
Ellen W. Zegura
Networking and Telecommunications Group
College of Computing
Georgia Institute of Technology
Atlanta, GA 30332
flenitra,ammar,ewzg@cc.gatech.edu
(404)894-3292, Fax: (404)385-0332
Feb 21, 2002
Abstract
Transmitting data via multicast can typically generate less network traÆc than if the
same packet were to be unicast to each of the receivers. The network load generated
by multicast applications can be further reduced by multicast server replication. For the
replication to be utilized eÆciently, the clients need to be directed to the \best" server
according to some optimality criteria. With replicated multicast servers, the shape of the
multicast tree also needs to be considered during the server selection process to reduce the
join/leave overhead incurred by clients and the cost of the multicast trees. In this paper
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