Networked Group Communication

Thisyear sInternationalWorkshopon NetworkedGroupCommunications(NGC) was the third event in the NGC series following successful workshops in Pisa, Italy(1999),andStanford,CA,USA(2000). Forthetechnicalprogramthisyear,wereceived40submissionsfromboth academiaandindustrialinstitutionsallaroundtheworld.Foreachpaper,we gatheredat least three (and sometimesas many as?ve) reviews. After a thorough PCmeetingthatwasheldinLondon,14paperswereselectedforpresentation and publication in the workshop proceedings. The program continues the themes ofpreviousyears,rangingfromapplications,throughsecurity,downtogroup management,topologicalconsiderations,andperformance. The program committee worked hard to make sure that the papers were not onlythoroughlyreviewed,butalsothatthe?nalversionswereasuptodateand as accurate as could be managed in the usual circumstances. Thisyear,theworkshopwasheldintheLondonZoo,hostedbyUniversity College London (the tutorials having been held at UCL the day before the start of the paper sessions). The proceedings are published by Springer-Verlag in the LNCS series. There are signs that the scope of the NGC workshopsis broadening to include hot topics such as group communication and content networking. We expect to seemoresubmissionsintheseareas,aswellasothernewtopics,forNGC2002, whichistobeheldattheUniversityofMassachusettsatAmhurst,chairedby Brian Levine and Mostafa Ammar. We hope that the research community will ?nd these proceedings interesting and helpful and that NGC will continue to be an active forum for research on networked group communication and related areas for years to come.

Includes supplementary material: sn.pub/extras

Inhalt
Application-Level.- Latency and User Behaviour on a Multiplayer Game Server.- Application-Level Multicast Using Content-Addressable Networks.- Scribe: The Design of a Large-Scale Event Notification Infrastructure.- Group Management.- Scamp: Peer-to-Peer Lightweight Membership Service for Large-Scale Group Communication.- Extremum Feedback for Very Large Multicast Groups.- An Overlay Tree Building Control Protocol.- Performance.- The Multicast Bandwidth Advantage in Serving a Web Site.- STAIR: Practical AIMD Multirate Multicast Congestion Control.- Impact of Tree Structure on Retransmission Efficiency for TRACK.- Security.- Framework for Authentication and Access Control of Client-Server Group Communication Systems.- Scalable IP Multicast Sender Access Control for Bi-directional Trees.- EHBT: An Efficient Protocol for Group Key Management.- Topology.- Aggregated Multicast with Inter-Group Tree Sharing.- Tree Layout for Internal Network Characterizations in Multicast Networks.