In this video David Bombal explains RSdoc, which provides semi-automated interactive RESTful API documentation. It offers a useful way to interact with REST APIs on the HP VAN SDN Controller, updating OpenFlow flow tables on switches. RSdoc is useful as an API online documentation tool. It provides a catalog of all the REST APIs on the SDN Controller. Use RSdoc to learn how to create a Software defined networking application for the adding, updating and deleting of flow entries on OpenFlow switches.