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Analysis of Reservation-Based Dual-Link Networks

June 1992 Technical Report
Lui R. Sha, Shirishq S. Sathaye, Jay K. Strosnider

This report outlines a general model of reservation-based dual-link networks to support real-time communication.

Publisher:

Software Engineering Institute

CMU/SEI Report Number

CMU/SEI-92-TR-010

Abstract

Next-generation networks are expected to support a wide variety of services. Some services such as video, voice, and plant control traffic have explicit timing requirements on a per-message basis rather than on the average. In this paper, we develop a general model of reservation-based dual-link networks to support real-time communication. We examine the desirable properties of this network and the difficulties in achieving these properties. We then introduce the concept of coherence and develop a theory of coherent dual-link networks. We show that a coherent dual-link network can be analyzed as though it is a centralized system. We then discuss practical considerations in implementing a dual-link network, and implications of this work to address problems observed in the IEEE 802.6 metropolitan area network standard.