Abstract: Wide area networks are now an integral and essential part of this data-driven supercomputing ecosystem connecting information sources, data stores, processing, simulation, visualization, and user communities together. Networks for data-intensive science have more extreme requirements than general-purpose networks. These requirements not only closely impact the design of processor interconnects in supercomputers and cluster computers, but they also impact campus networks, regional networks and national backbone networks. This workshop brings together the network researchers and innovators to present challenges and novel ideas that stretch network research and SC’s own innovative network, SCinet. We invite papers that propose new and novel techniques to present solutions for meeting these networking needs; and developments that are essential in the information systems infrastructure for the scientific discovery process.