ABSTRACT
This chapter focuses on converged optical network and information technology (IT) infrastructures suitable to support cloud services. It aims to minimize the carbon monoxide emissions of converged optical network and cloud infrastructures by introducing a hybrid energy power supply system for the high energy consuming IT servers. The chapter also focuses on optical network technologies based on wavelength division multiplexing utilizing Optical Cross-Connect nodes to perform switching and facilitate routing at the optical layer. It describes a hybrid energy power supply system for the IT resources, in which conventional and renewable energy sources are cooperating to produce the necessary power for the IT equipment to operate and support the required services. In order to maximize the utilization and efficiency of infrastructures supporting converged network and IT resources, in support of cloud services, it has been recently proposed to partition the network into logical domains, which reduces the signalling overhead and generates more scalable solutions.
