OASIS: An Overlay Abstraction for Re-Architecting Large Scale Internet Group Services

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Executive Summary

There is an increasing economic desire driven by widespread applications like IPTV or conferencing that a next generation Internet will grant transparent group communication service to all its stationary and mobile users. In this paper, the authors present a generic approach to inter-domain multicast, which is guided by an abstract, DHT-inspired overlay, but may operate on a future Internet architecture. It is based on the assumptions of a globally available end-to-end unicast routing between resolvable locators, taken from a name space that allows for aggregation. Their protocol design accounts for this aggregation, leading to forward-path forwarding along bidirectional shared distribution trees in prefix space.

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