Architectural Options for the Next-Generation Networking Paradigm: Is Optical Internet the Answer?

摘要

Recent advances in optical networking technologies are setting the foundation for the next-generation data-centric networking paradigm, an "Optical Internet". This work addresses one of the most challenging issues facing today's service providers and data vendors; how will the SONET/SDH-based legacy infrastructure currently in place make a graceful transition to the next generation networking paradigm? A simplified, two-tiered architecture that requires two types of sub-systems will set the stage for a truly optical internet: service delivery Platforms that enforce service policies; and transport platforms that intelligently deliver the necessary bandwidth to these service platforms.