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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Combining Timed Colored Petri Nets and Real TCP Implementation to Reliably Simulate Distributed Applications
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In recent years the importance of the problem of efficiency of distributed applications grows since the distributed computer systems become more and more pervasive. The problem is the more difficult since it connects aspects of concurrent processing and communication between different parts of applications over the Internet links with parameters changing in time. In this paper we describe the problem of estimating data transmission time over the network. The results are part of the work heading towards enabling reliable simulation of distributed applications. The model of application and resources is created using Timed Colored Petri Nets (TCPN) and it is combined with Ns-2 implementation of Linux TCP. Thus reliable simulation of concurrent processes and resource competition is ensured by the formalism of TCPN and network transmission time is estimated by implementation including real TCP code. We present preliminary results of comparison between simulations and experiments.