https://support.microsoft.com/en-us/help/4464776/software-defined-data-center-and-software-defined-networking
Hello, please refer to the link above...
Per the MS support team, I'm submitting a request here to receive registry keys to enable both features described in the article (S2D & SDN) on Server 2019, using the latest ISO that was just re-released.
Please provide them, or the appropriate workarounds, so that we may continue testing.
Sincerely,
David