RTP – the sending aspect of the endpoint encapsulates all media chunks in just RTP packets. Sending aspect then passes the RTP packets to UDP. RFC 3550 RTP July 2003 Non-normative Notice: Inside the multicast routing solution referred to as Supply-Distinct Multicast (SSM), there is only one sender per "channel" https://sethhxxlw.blogripley.com/30903434/the-2-minute-rule-for-link-rtp