`Push-out based´ strategies for controlling the share of buffer space

In order to deal with buffer overflow in ATM-based high-speed networks, various techniques have been proposed and analysed. Push-out is a loss priority scheme which permits to share the buffer space among two classes of traffic, i.e. classes with different target losses. In this paper the major problem of such a scheme, the cost required for preserving cell sequence, is addressed and the idea of the push-out is generalized. Results are given when 3 kinds of traffic have to share the same buffer. As regards the gain over the implementation cost, results are shown when in presence of 2 different classes of traffic. A discrete-time model has been used for the analysis