thanks for response.
I am working with medical devices such as CTs or other devices which produces DICOM files inside a university hospital. In my first version I want to sniff the network traffic with tshark/tcpdump and extract the DICOM files from that over a mirror port (see image)
This works very good with rasperry pi v4 already. But I want to test different micro computers which are cheap. The banana pi r2 seems to have the right hardware. In the second version the Banana Pi R2 should be connected directly to the medical device and act as a switch.
I am not able to write my own network driver and therefore I need a working solution. My expertise is more on data analysis with python. Does your kernel support the switch driver on the banana pi? So far I everything I know is how to download an .img file, write it to sd card and put the sd card into the rasperry pi/banana pi. It would be great if there is a solution which works from the start.