SFU (selective forwarding unit)

E663661

media server real-time communication component

A selective forwarding unit (SFU) is a media server used in real-time communication systems that routes and selectively forwards participants’ audio and video streams without mixing them, enabling scalable multiparty conferencing with lower latency and resource usage.

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Statements (51)

Predicate	Object
instanceOf	media server ⓘ real-time communication component ⓘ
abbreviationOf	selective forwarding unit ⓘ
advantageOver	MCU in latency ⓘ MCU in scalability ⓘ MCU in server resource consumption ⓘ
canPerform	stream relaying without transcoding ⓘ
comparedWith	MCU (multipoint control unit) NERFINISHED ⓘ
controlProtocol	RTCP ⓘ WebRTC signaling ⓘ
differsFrom	MCU by not mixing media ⓘ
doesNotPerform	audio mixing ⓘ media mixing ⓘ video compositing ⓘ
enables	bandwidth optimization ⓘ low-latency conferencing ⓘ scalable multiparty conferencing ⓘ
fullName	selective forwarding unit ⓘ
goal	improve conference scalability ⓘ reduce end-to-end latency ⓘ reduce server-side processing load ⓘ
handlesMediaType	audio ⓘ video ⓘ
hasFunction	routes media streams ⓘ selectively forwards media streams ⓘ
mayPerform	limited transcoding ⓘ
optimizes	CPU usage on clients ⓘ CPU usage on server ⓘ network resource usage ⓘ
performs	packet forwarding based on bandwidth ⓘ packet forwarding based on device capabilities ⓘ packet forwarding based on network conditions ⓘ packet forwarding based on subscription ⓘ
supports	SVC (scalable video coding) NERFINISHED ⓘ active speaker detection ⓘ layered video forwarding ⓘ mute and unmute control ⓘ per-participant bitrate control ⓘ per-participant frame rate control ⓘ per-participant resolution control ⓘ per-subscriber stream adaptation ⓘ selective subscription to streams ⓘ simulcast ⓘ speaker selection ⓘ
typicalProtocol	RTP ⓘ SRTP NERFINISHED ⓘ
usedIn	VoIP systems ⓘ WebRTC-based applications ⓘ multiparty conferencing ⓘ real-time communication systems ⓘ video conferencing ⓘ

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

MCUs (multipoint control units) → alternativeTo → SFU (selective forwarding unit) ⓘ

subject surface form: MCU (multipoint control unit)