CONCEPT Cited by 1 source
Hub-and-spoke broadcast architecture¶
A hub-and-spoke broadcast architecture terminates N venue-side contribution feeds ("spokes") at a single central facility ("hub") that handles signal ingest + inspection + conditioning + metadata insertion + redundancy termination, and emits one validated feed to the downstream live streaming pipeline.
Definition¶
Rather than allowing every event venue to establish its own direct path to the streaming encoder, the hub-and-spoke model funnels contribution feeds through a central Broadcast Operations Center (BOC). The hub owns:
- Signal ingest from all inbound legs (triple-redundant paths per show-critical feed)
- Signal inspection + conditioning
- SMPTE 2022-7 seamless switching termination
- Closed-captioning + graphics insertion
- Ad management (SCTE marker insertion)
- Final handoff to the live streaming pipeline
Why it matters¶
Netflix's 2026-04-17 Human Infrastructure post frames the hub as the fix for venue-specific fragility: "the BOC replaces direct, vulnerable paths from the venue to the live streaming pipeline, making each live event highly repeatable and far less dependent on the quirks of individual event locations."
Three properties the hub provides that direct-from-venue can't:
- Repeatability — every event flows through the same ingest + conditioning + handoff pipeline regardless of venue.
- Centralised redundancy termination — SMPTE 2022-7 dual- stream merging happens once at the hub, not per-venue.
- Centralised metadata injection — captioning, graphics, SCTE markers all applied in one place with consistent tooling.
Seen in¶
- 2026-04-17 — sources/2026-04-17-netflix-the-human-infrastructure-live-operations — Netflix's BOC is the canonical wiki instance of hub-and-spoke broadcast architecture.