The table below shows typical NDI network bandwidth requirements that we have measured when using NDI® sources with our ingest or playout applications when using very complex signals.
It is important to note that these results are different than the bandwidth requirement that Newtek indicates:
This is most probably because data rates can vary depending on the type of video signal.
So how many channels can you do?
Unfortunately the answer is NOT as easy as dividing the capability of your network (1Gb theoretical) by the bandwidth requirements.
Indeed, we have seen that on Mac computers, we were able to do max 4 channels of 1080p30 on a 1Gb connection.
We strongly advise you to check with your NDI/System/Network integrator to do the best network for your requirements. NDI® is a network protocol and as such you need to follow some guidelines to have the best performances. You can also find some technical recommendations at the bottom of this page: https://www.newtek.com/ndi/sdk/