Cluster-based hierarchical approach to interdomain multicast

Robert J. Voigt; Shridhar B. Shukla; Robert J. Barton III

doi:10.1117/12.290403

10 October 1997 Cluster-based hierarchical approach to interdomain multicast

Robert J. Voigt, Shridhar B. Shukla, Robert J. Barton III

Proceedings Volume 3231, Performance and Control of Network Systems; (1997) https://doi.org/10.1117/12.290403
Event: Voice, Video, and Data Communications, 1997, Dallas, TX, United States

Abstract

Widespread acceptance and use of the internet requires more efficient utilization of the available bandwidth. Multi- party interactions are increasing with the typical application, such as video conferencing, being high bandwidth with heavy user interaction. The first generation of multicast protocols are based on the formation of one or more routing delivery trees for a specified number of participants who are identified by a single group address. This address space, known as a class `D' address, is a flat, global address space with no initial scope or scaling boundaries. Recent efforts have introduced administrative scoping and hierarchies to address these problems, however, the logical inherent hierarchy used by the unicast routing protocols to assist in route aggregation (a scaling issue) does not apply to multicast. Aggregation of multiple unicast entities has already occurred through the use of the multicast address. Aggregation of multiple multicast address implies a priori knowledge of the locations of the members across groups resulting in an undesirable implementation. We propose a solution to the scaling and scope control problems using a cluster based hierarchical multicast architecture which pre-supposes no underlying unicast protocol. We provide solutions to the construction of delivery trees, scalability and scope control problems which is not overly complex. We characterize the path length performance of this solution and back up the analysis through simulations.

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Robert J. Voigt, Shridhar B. Shukla, and Robert J. Barton III "Cluster-based hierarchical approach to interdomain multicast", Proc. SPIE 3231, Performance and Control of Network Systems, (10 October 1997); https://doi.org/10.1117/12.290403

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KEYWORDS

Receivers

Internet

Video

Distributed interactive simulations

Computer simulations

Data transmission

Chlorine

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