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Scalable Application-Layer Multicast Simulations with OverSim

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2 Author(s)
Krause, S. ; Inst. of Telematics, Univ. of Karlsruhe (TH), Karlsruhe, Germany ; Hubsch, C.

Application-Layer Multicast has become a promising class of protocols since IP Multicast has not found wide area deployment in the Internet. Developing such protocols requires in-depth analysis of their properties even with large numbers of participants-a characteristic which is at best hard to achieve in real network experiments. Several well-known simulation frameworks have been developed and used in recent years, but none has proved to be fitting the requirements for analyzing large-scale application-layer networks. In this paper we propose the OverSim framework as a promising simulation environment for scalable Application-Layer Multicast research. We show that OverSim is able to manage even overlays with several thousand participants in appropriate processing time while consuming comparably little memory. We compare the framework's runtime properties with the two exemplary Application-Layer Multicast protocols Scribe and NICE. The results show that both simulation time and memory consumption grow linearly with the number of nodes.

Published in:

Consumer Communications and Networking Conference (CCNC), 2010 7th IEEE

Date of Conference:

9-12 Jan. 2010