DNA Centre is the primary control centre of SDA.
GUI is the traditional means of accessing DNA Centre but it can also be accessed using REST API. This is based on HTTP/S and supports the same verbs – GET, POST etc.
The body of the REST API call will be JSON or XML formatted.
REST is used “northbound” communicating between DNA Centre and the network engineer
DNA communicates with SDA devices (southbound) using an API language called NETCONF which uses XML.