engleski

Application of the M/G/1/∞/∞/FCFS Queueing System for the Internet Node Performance Analysis

In this paper we analyze the impact of different packet size distributions on Internet node performances. For this purpose, the input data flow of the node was simulated fourfold. In each scenario 10, 000 data packets of various sizes were generated. Namely, we used exponential, normal, Pareto and deterministic distribution to model the variability of the packet sizes. In all four input flow scenarios the inter-arrival times of the packets followed the same exponential distribution. Next, the average waiting and sojourn time of the packets was analyzed in each scenario. Note that the average packet size, packet load and server utilization remained almost equal regardless of the applied packet size distribution ; however, the paper shows that the achieved performances varied significantly. The performances were calculated using the mathematical formulations developed for the M/G/1/∞/∞/FCFS queueing system.

packet size ; service time ; waiting time ; sojourn time ; distribution ; Internet node

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