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Revista Facultad de Ingeniería Universidad de Antioquia

versão impressa ISSN 0120-6230
versão On-line ISSN 2422-2844


MORENO MOGOLLON, Jaime Alberto; PADILLA AGUILAR, Jhon Jairo; ESCOBAR ORDONEZ, Vladimir  e  CORREO MONTESINO, Andrés Fernando. Characterization and simulation of the LAN traffic by MMPP model. Antioquia [online]. 2007, n.42, pp.7-29. ISSN 0120-6230.

This paper presents a method to characterize and simulate the traffic of any Local Area Network (LAN) which displays a self-similar behavior. We used the queuing model D-MMPP/D/1 to generate a discrete stream and to analyze its behavior when passing trough the queue using different buffer capacities. This method has been tested by other authors under controlled-laboratory conditions for incoming traffic only. We demonstrate that this methodology can be used for LAN networks under real and present conditions for incoming and outcoming traffic. We used the traffic captured on Internet input/output links from Universidad Pontifícia Bolivariana Seccional Bucaramanga´s LAN. Additionally, this methodology solves the problem of modeling self-similar traffic due to its capacity of generating a simulated stream approximated to the measured stream. The exactitude of the model is shown in the quantile (Q-Q plot) between the measured stream and the one generated by D-MMPP. In our study, the model and algorithms were initially validated using streams provided by Bellcore laboratories. Furthermore, we performed some adjustments in order to obtain a simulated stream in terms of bits per second (bps) as opposed to packets per second in order to perform a link’s capacity simulation in bps.

Palavras-chave : Self-similar traffic; Characterization; Hurst; Modeling; MMPP; Packets; Quantiles; Network; Traffic; Frames.

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