The OpenDaylight Project announced that "The first of its kind, the SDN, NFV and Open Source Report provides a comprehensive view of drivers, barriers, timelines and targets for Software-Defined Networking (SDN) and Network Functions Virtualization (NFV), and the role that open systems and open source play in its advancement and adoption. The report surveyed 600 IT decision makers and technologists in medium to large organizations within enterprise (300) and service provider (300) organizations in North America"
According to the report, "SDN and NFV deployment timelines are extremely aggressive. While these timelines will certainly move out as real-world pressures (financial, technical, and organizational) force delays, these results indicate the high level of hope for SDN and NFV solutions"
As can be seen from the chart below, 3 of the top 5 applications for open source SDN are well known to the readers of this blog!
See "SDN, NFV, and Open Source: The operator's view" - here.