Performance analysis of prioritized token ring

ccsr-TR-89/8 An analytic model for prioritized token ring is presented in this report. Its protocol is based on prioritized token ring with reservation (R-PTR). Since the protocol of the R-PTR is simple and the performance of the R-PTR is not inferior to that.of the IEEE-PTR under almost all traffic load environments, we use the R-PTR as our token ring model. By using the properties of Markovian process, the expressions for average throughput and average packet transmission delay are derived. The results obtained from the ana-lytic model are compared with that of the simulation model. In this report, we present an analytic model for performance evaluation of token ring with priority scheme. Its protocol is based on prioritized token ring with reservation (R-PTR) [1] which is similar to IEEE standard 802.5 [2]. In token ring, a token circulates around the ring when all stations are idle. A statio