Chapter 8 - Case studies 1: Traffic engineering and QoS Optimization for Operational Integrated Voice/Data Dynamic Routing Networks

Abstract

This chapter presents case studies of traffic engineering and quality of service optimization (TQO) protocol design for integrated voice/data dynamic routing networks. It first reviews the TQO design principles used for voice, data, and integrated voice/data network design. It then present case studies for TQO protocol design: circuit-switched integrated voice/data dynamic routing networks, for both single intradomain and internetwork routing cases, and multiprotocol label switching/ general multiprotocol label switching (MPLS/GMPLS)-based integrated voice/data dynamic routing networks. The chapter also discusses two case studies where designs went astray, but at the same time provided valuable lessons for future designs. In these case studies, discrete event simulation models are used to illustrate the design and optimization of RTNR/COS and RINR/COS. The simulation model is used to illustrate the selection of real-time network routing/class of service (RTNR/COS) and real-time internetwork routing/class of service (RINR/COS) from among a large number of TQO alternatives, and the optimization of the RTNR/COS and RINR/COS protocols by evaluating the performance as a function of various design parameters.