Modeling and performance analysis for processor-to-processor communications unit using a 100 Mb/s optical token ring

To economically meet the increasing demand for greater processing capability and reliability in information processing systems, the authors have developed a processor-to-processor communications unit (PCI) using a 100 Mb/s optical token ring. They describe a model for evaluating the performance of data transmissions carried over the PCIs, introduce the equations corresponding to the model, and present evaluation results obtained through actual measurements of PCI performance. Based on these results, they confirm the evaluation model can effectively estimate data transmission over the PCIs