Hello. In my vmix pc i have my primary 1gbps local network that im using for primary ndi work and also i connect a usb network ethernet adapter usb3.0-->to 1gpbs ethernet as 2nd ndi network. This 2nd one im connecting in another one 1gbps network switcher in order to take a ndi source from a pc that it is in other bulding.
The 2 networks can work in vmix both (doesnt need to tell vmix to select anything as it sees both ndi networks without any settings) but i cant combine the 2 ndi networks together as they dont communicate each other. The pc that is connected to 2nd 1gbps network switcher cannot see the other pc`s that are connected to primary 1gpbs network. Vmix output will send ndi feed in both networks same time but the pc that it is in the other building can see only the pc that i connect to same 1gbps network switcher and not the other pc`s that i connect to my primary local network.
So yes in my experiment and testing, vmix can see 2 or more ndi sources in different networks and combine them all together as sources but the ndi networks dont "talk" each other.