Performance Study for an ATM Multiplexer with GCRA-Enforced Sources

Abstract

The Generic Cell Rate Algorithm (GCRA) is recommended by the ATM Forum to perform Usage Parameter Control at the User Network Interface in ATM network where every traffic source is policed by a GCRA enforcer before entering access node at the edge of the network. In this article, we investigate the characteristics of the model that GCRA-enforced traffic sources are merged together by a multiplexer in the edge mode. Traffic parameters concerned include peak cell rate CDV tolerance and burst tolerance. Based on the worst output traffic pattern form a dual-stage GCRA enforcer, we obtain the upper bound of the queue length as the function of the GCRA parameters number of connections.