Stochastic bounds on partial ordering: Application to memory overflows due to bursty arrivals

Abstract

We apply stochastic bounding methods with a partial order on the state space to the analysis of memory overflow in a router. Usually, stochastic bounds are associated to a total order implying useless constraints and decreasing the tightness of bounds. Here we present the basic methodology of sample path comparison with a partial order and some numerical results to show the accuracy of the results. We analyze the probability of a buffer overflow with two types of packets, a Pushout access mechanism and Markov modulated batch arrivals. This problem is strongly related to the memory rejection out a Fiber Delay Loop in an all optical router using deflection routing. © Springer-Verlag Berlin Heidelberg 2005.