How to test Rivermax on a single AGX Xaiver?

Hi, we have integrated ConnectX-5 on AGX Xaiver to evaluate Rivermax. However, from the document, we have to build another AGX Xavier to be a Tx to deliver video via multicast.
Could we use an X86 system as a Tx? Is it a must to transmit the video stream via multicast? However, multicast needs a switch. Could you guide us to test Rivermax on a single AGX Xaiver system? Thanks.