Chapter 5 - Traffic Engineering and QoS Optimization of GMPLS-Based Multilayer Dynamic Routing Networks

Abstract

This chapter presents and analyzes general multiprotocol label switching (GMPLS)-based dynamic transport routing, a routing and bandwidth allocation method that combines dynamic connection routing with dynamic transport routing and for which associated network design methods are described. It presents a number of analysis, design, and simulation models related to dynamic transport network architectures. The chapter reveals that networks benefit dramatically in reliability, efficiency, and performance as the ability to flexibly route transport bandwidth is increased, and can also simplify network management and design. Full-scale network analysis models are used to measure the performance of the network for dynamic transport routing network design in comparison with the fixed transport network design under a variety of network conditions. The chapter uses 135-node national network model to give modeling results for GMPLS-based dynamic transport routing capacity design, performance under network failure, and performance under various network overload scenarios. It concludes that GMPLS-based dynamic transport routing provides greater network throughput and, consequently, enhanced revenue, achieves efficient network design and capital savings, and greatly enhances network performance under failure and overload.