BACKBONE NETWORKS USING ROTATION COUNTERS

In this paper, we use simulations to evaluate the performance of an RC P ring network for network interconnection. The RCP (Rotation Counter Protocol) is a token ring protocol that has in its token a special fie ld for counting down of the number of packets transmitted in one cycle . By correlating the queuing performance of each station through the c ounter, the delay of the high-priority data can be made almost indepen dent and the delay jitters made small. Thus, RCP can be utilized in re al-time control environment or integrated services environment. The pe rformance of the backbone networks is investigated, using voice and da ta integration; the performance measures are mean voice delay, delay j itters, and mean data delay. Various buffering schemes for voice packe ts are compared. The effect of asymmetric data load is examined, and R CP is found to be capable of minimizing the loading effect of one stat ion to the other.