On the effect of queue sizes and channel scheduling policies in the segment router

Abstract

In this paper, we consider the effect of queue size and channel allocation policy on the performance of the Segment router [10]. The design decisions of the Segment router are motivated by the need to improve the network performance when the traffic consists of messages with widely different lengths. The Segment router provides separate buffer pools and implements different queueing policies for short and long messages. Furthermore it time-multiplexes the physical channels of the network fairly among the classes, possibly giving them different quantums of service. Our experimental results show that increasing the size of the buffer pool in the Segment router improves the performance of small messages whereas increasing the segment size improves the performance of long messages.