Sunnyvale, Calif. -- PLUMgrid, a Sunnyvale-based provider of network infrastructure software to companies building and managing data centers, said on Wednesday it has landed $10.7 million in its first round of funding. US Venture Partners (USVP) and Hummer Winblad Venture Partners participated in the round, which comes a year after the company initially raised $2 million. "Network virtualization and the move to software-defined networking (SDN) is a strategically important focus area for the networking industry, said CEO Awais Nemat. "PLUMgrid was started nearly two years ago with a vision of providing a better way for customers to address new networking application needs and reduce excessive costs and complexity." The company said its technology will enable businesses to manage their physical, virtual and cloud datacenters with greater agility and efficiency.