Performance Analysis of FDDI Token Ring Networks: Effect of Parameters and Guidelines for Setting TTRT

TL;DR

This paper analyzes how various parameters, especially TTRT, influence FDDI token ring network performance and offers guidelines for optimal TTRT setting to enhance network efficiency.

Contribution

It provides a detailed analysis of TTRT's impact on FDDI performance and recommends an optimal TTRT value for diverse configurations and workloads.

Findings

TTRT of 8 ms yields optimal performance across configurations.

Performance is significantly affected by workload parameters.

Guidelines for setting TTRT to improve network efficiency.

Abstract

The performance of Fiber-Distributed Data Interface (FDDI) depends upon several workload parameters; for example; the arrival pattern, frame size, and configuration parameters, such as the number of stations on the ring, extent of the ring, and number of stations that are waiting to transmit. In addition, the performance is affected by a parameter called the Target Token Rotation Time (TTRT), which can be controlled by the network manager. We considered the effect of TTRT on various performance metrics for different ring configurations and concluded that a TTRT value of 8 ms provides a good performance over a wide range of configurations and workloads.