Hi,
I wan to create High Level Diagram for SDDC project , so please give me some tips and clue for this.
How about referencing these EVO topology diagrams for SDDC:
https://vcdx133.com/2015/08/31/vmworld-announcement-evo-sddc/
Particularly https://vcdx133.files.wordpress.com/2015/08/evosddc_3.jpg