Abstract
The steady growth in size and complexity of communication networks
has necessitated corresponding advances in the underlying networking
technologies including communication protocols. This multi-faceted
growth has rendered analysis of today's ultra-large networks, a complex
task. Simulations have been used to model and analyze communication
networks. Complete models of the ultra-large networks need to be
simulated in order to study crucial scalability and performance issues.
Discrete event simulations of such ultra-large networks, with limited
hardware resources is complex due to their sheer size. This paper
presents the issues involved in the design of a framework to enable
ultra-large simulations, consisting of millions of nodes. The parallel
simulation techniques used, the application program interface needed for
model development, and the results from experiments conducted using the
framework are also presented
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