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Published online by Cambridge University Press: 01 July 2016
We analyze and compare the performance, under overload, of a class of queueing and service disciplines for an M/M/l queue. The disciplines we study are (i) FIFO with finite buffer (M/M/1/N), (ii) FIFO with push out (M/M/1/N-PO), (iii) LIFO with push out, (iv) FIFO with time out (M/M1-TO) and (v) LIFO with time out. For each of these disciplines we obtain the performance measures such as the throughput, the moments and the distribution of the waiting time of the customers who get served and numerically compare the disciplines with respect to these measures.