Reliable Internet Stream Transport (RIST) is an open-source, open specification transport protocol designed for reliable transmission of video and audio over lossy networks (including the internet) with low latency and high quality.
It is designed, administered, and promoted by the RIST Forum, a not-for-profit association of leading vendors and global broadcast operators. The primary objective is to provide interoperability between products from different vendors while using best-in-class technologies without being locked into a proprietary solution.
Released in 2018, RIST is based natively on well-understood protocols such as RTP and SMPTE-2022 (Transport Stream over IP), as well as a number of relevant RFCs (internet standards).
As such RIST can be understood as a set of guidelines based around standards, tuned for application in a broadcast environment. This open-by-design means that vendors can still be innovative and differentiate their solutions when they implement RIST while safe in the knowledge that it will work with other solutions, no matter what technology they are using.