Parallel channel token ring local area networks

Abstract

A multichannel LAN based on a ring topology is proposed. This LAN, the multichannel token ring (MCTR), is designed to meet the demand for additional bandwidth while preserving, as much as possible, existing hardware and software. An emerging technology, wavelength division multiplexing (WDM), is reviewed as a candidate technology for implementing the multiple channels of the MCTR over a single fiber optic cable. When compared to single-channel LANs, the MCTR is shown to offer increased reliability, bandwidth scalability, and price-performance advantages.<>