Avaliação de desempenho do buffer multiclasse COMATM.

Abstract

In a computer network, switches have a major influence on performance. Switches use buffers in order to avoid loss o f data that cannot be passed on immediately. Beside the size o f buffers, the algorithms they use for inserting and retrieving data have a big influence on switch performance. This work presents a performance evaluation of an A TM multi-class buffer used in a switch called COMATM. The evaluation was done within a simulation framework called Arena, using a model o f the buffer and injecting various selected types of network traffic into it. The performance parameters obtained where compared to those obtained by simulations of a FIFO buffer under the same traffic conditions.