Software-defined infrastructure and the Future Central Office

This paper discusses the role of virtualization and software-defined infrastructure (SDI) in the design of future application platforms, and in particular the Future Central Office (CO). A multi-tier computing cloud is presented in which resources in the Smart Edge of the network play a crucial role in the delivery of low-latency and data-intensive applications. Resources in the Smart Edge are virtualized and managed using cloud computing principles, but these resources are more diverse than in conventional data centers, including programmable hardware, GPUs, etc. We propose an architecture for future application platforms, and we describe the SAVI Testbed (TB) design for the Smart Edge. The design features a novel Software-Defined Infrastructure manager that operates on top of OpenStack and OpenFlow. We conclude with a discussion of the implications of the Smart Edge design on the Future CO.