We summarize the DARPA CORONET program approach to bandwidth-on-demand, and implementation and demonstration of Cloud Computing applications in network testbeds. Recently, there has been major impetus for Bandwidth-on-Demand (BoD) in carrier networks, driven by the burgeoning demand for cloud computing services and a desire to reduce costs through bandwidth… (More)
We describe bandwidth-on-demand in an evolved multilayer, software-defined networking (SDN) based cloud services model. We present motivation for using a multilayer architecture for the wide-area network (WAN). Our laboratory testbed is described, and both the hardware and management architecture are presented. We also show an initial proof-of-concept… (More)
The DARPA Core Optical Networks (CORONET) program envisions a highly dynamic network environment requiring fast provisioning and restoration for a wide variety of bandwidth-on-demand services in IP-over-optical networks. This paper builds on previously reported work on the development of fast provisioning and restoration protocols to meet CORONET… (More)
—We have demonstrated powerful new techniques for identifying the optical impairments causing the degradation of an optical channel. We use machine learning and pattern classification techniques on eye diagrams to identify the optical impairments. These capabilities can enable the development of low-cost optical performance monitors having significant… (More)
— A dynamic optical network that adjusts quickly and automatically to changes in offered traffic load provides performance superior to that of a network of fixed, static optical connections only under certain conditions, such as a high degree of interconnectivity among the network nodes and a coarse granularity of traffic demands relative to link capacity.