Design of priority schemes in CSMA/CD local area networks

This paper compares the performance of three message based priority protocols in CSMA/CD local area networks. The major thesis is that traffic loads and message ratios are critical factors in network system performance. Thus, a message based priority protocol should not be designed based on any assumption on traffic and ratios. Since the dynamic protocol, proposed by Shen and Liu [12], is traffic and ratio independent, we argued that it should outperform the other two protocols, given a wide range of traffic and ratios. We perform 600 experiments and the statistics indeed confirms our contention, with a chance of errors in most cases below only .01%.