SFM stands for Selective Forwarding Middlebox.
This is the “official” specification term given to the SFU (Selective Forwarding Unit). If you bump into this term, just “rename” it with SFU to put it in the context in which developers think of it 😀
About WebRTC Glossary
The WebRTC Glossary is an ongoing project where users can learn more about WebRTC related terms. It is maintained by Tsahi Levent-Levi of BlogGeek.me.
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