Software-defined networking (SDN), network functions virtualization (NFV), and network virtualization (NV) have a robust open source community. With the growing development within SDx, SDN, and NFV community, including OpenFlow, the number of open source projects are rapidly increasing. Although sometimes used interchangeably, there is a lot more to SDN beyond OpenFlow, and SDxCentral aims to capture the most comprehensive list of open source SDN projects with our Open Source Projects Directory. If you have questions about open source projects, please contact us and we’ll connect you with an SDN expert who can help answer your questions. Also, we are always looking for more open source projects, so please contact us if you wish to add any to our directory.