Résumé:
As networks becomes larger and more complex the design and
management of systems become more and more difficult. New
technologies, such as Asynchronous Transfer Mode, new
algorithms, and bandwidth demanding applications are
implemented every day. How can network designers decide
which combinations of connections, communication speeds,
algorithms, and applications are the most appropriate for their
business? A widely accepted answer is performance prediction
through simulation. A model can be used to
evaluate various design alternatives or various operational
policies,
explore the behavior of proposed systems and connections
before actually building them,
pre-test modifications.
We apply simulation techniques for ATM networks. In an
ATM network the basic data units, called cells, are routed
through switched or permanent virtual circuits. A Smart
Permanent Virtual Circuit is a connection that looks like a
Permanent Virtual Circuit at the local and remote endpoints
with a Switched Virtual Circuit in the middle. In an earlier
paper we presented a search algorithm [3] for managing Smart
Permanent Virtual Circiiits. Our goal is to predict the
performance of this search algorithm with the Distributed
Software Module of the simulation modeling system CACI
Comnet [4].
