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Seminars given
July 09, 2002 - Group Communication: Changing the Paradigm on the Internet
by Deborah Agarwal
| Abstract: | Many distributed applications require reliable ordered delivery of messages and membership services for a group of processes. IP multicast provides only unreliable unordered delivery of messages and TCP only provides reliable delivery between two processes. A reliable multicast protocol provides message delivery services similar to TCP but between the members of a group of any size. Several factors go into developing a reliable multicast protocol that will work for a group spread across the Internet. Reliable multicast protocols that work on the Internet must scale to large numbers of members, long latencies, asynchronous messages, and dynamically changing group membership/connectivity. Reliable multicast protocols must also be able to serve a broad range of types of distributed applications and application communication requirements. I have been involved in reliable multicast protocol development for the last eleven years. In this talk I will present some of the history of reliable multicast protocol development, our current developments, and some thoughts on the future of group communication capabilities.
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