The effect of optimized devices on the performance of a token ring network interface

Abstract

Absfruct-This paper presents new results on the performance of a token ring network interface adapter, incorporating devices optimized for the network interface application. Previous work [1,2] has demonstrated the performance improvements possible by employing adapter bypass circuitry in the physical layer of the adapter. Here, we seek to extend the operating speed of the token ring by employing state of the art device technologies, with devices optimized for this application. We seek to determine the operating speed performance limit of the token ring, achievable with these technologies. We investigate three technologies, G a b , ECL, and high speed CMOS. We determine the operating speed limits of the adapter, using each of these three technologies. We show that the limit is much higher than presently used.