The objective of this book is to provide timely and comprehensive coverage of the principles, technology, practice, and future of tra?c grooming in op- cal networks. Tra?c grooming considerations are already shaping new switch designs and standards, including next generation Synchronous Optical N- work/Synchronous Digital Hierarchy (SONET/SDH) and Generic Framing Procedure (GFP), are a?ecting future optical network technologies, and are creating new business opportunities. Yet information on the topic is sc- tered and there is a shortage of technical sources where relevant material can be accessed in a single location. The motivation for this book was to bridge this gap by providing a single authoritative point of reference to the tra?c grooming state of the art. Tra?c grooming is a complex subject, involving a number of interrelated concepts, standards, and technologies. It is also a rapidly growing ?eld of study,makingitdi?cultforasinglebooktocoverallaspectsindetail.Tocope with this scope and complexity, this book provides appropriate background information, followed by an in-depth study of a few key issues and challenges. It has been our intention to bring together a broad range of perspectives from preeminent researchers in both academia and industry. We believe that these multiple, diverse points of view add considerable value and make the contents more interesting to the reader.

Foundations.- Grooming Switches.- Control Plane Support.- Grooming Mechanisms in SONET/SDH and Next-Generation SONET/SDH.- Computational Complexity.- Hierarchical Traffic Grooming.- Techniques.- Traffic Grooming In SONET/SDH Rings.- Traffic Grooming in Next-Generation SONET/SDH Networks.- Mathematical Programming Approaches.- Survivable Traffic Grooming.- Traffic Grooming Under Scheduled Service.- Dynamic Grooming Algorithms.- Performance Models for Dynamic Traffic Grooming.- Multipoint Traffic Grooming.- Frontiers.- Multi-Domain Traffic Grooming.- Grooming of Scheduled Demands in Multi-Layer Optical Networks.- All-Optical Traffic Grooming.