Reliable Internet Stream Transport (RIST) is an open-source, open-specification transport protocol designed for reliable transmission of video over lossy networks (including the Internet) with low latency and high quality.
It is currently under development in the Video Services Forum's "RIST Activity Group.
"[1] RIST is intended as a more reliable successor to Secure Reliable Transport, and as an open alternative to proprietary commercial options such as ActionStreamer, Zixi, VideoFlow, QVidium, and DVEO (Dozer).
Technically, RIST seeks to provide reliable, high performance media transport by using RTP / UDP at the transport layer to avoid the limitations of TCP.
SMPTE-2022 Forward Error Correction can be combined with RIST but is known to be significantly less effective than ARQ.