Find out everything you need to know about how the current network should be evolved to provide future broadband services In this book, the author gives an overview of the status, challenges, architecture and technology solutions for core and metropolitan networks. Key Features: Provides protection from all aspects and metro core networks to support future broadband services, and detailed descriptions of art --- a clear road Presenting the state to migrate from the dots to data-centric, dynamic, multi-hop optical networks shows how the current system needs to evolve over the coming years, summarizes the challenges and issues to be investigated in future research covers various topics of network architecture, to control the plane, the optical and optoelectronic device key, and best practices in the design of transmission and system Providing, best practices and guidelines for various technical problems, including a number of hand-sample Written by the author of the latest companies such as Alcatel-Lucent, Siemens, Lucent, France Telecom, BT and Telefonica Optical Core and Metro Networks will attract researchers in industry and academia, and advanced (graduate end of year) and graduate students to conduct communication, networking and optics courses.