SMPTE ST 2022-7 - Seamless Redundancy for IP Media
Broadcast infrastructure has always been built around redundancy. Dual power supplies, redundant signal paths, failover routing - the principle is the same everywhere: no single point of failure should take a show off air. When broadcast moved to IP, the question became how to achieve the same resilience on a packet network, where the failure modes are fundamentally different from SDI. SMPTE ST 2022-7 is the answer the industry settled on. It defines a scheme called Seamless Protection Switching, and understanding it is worthwhile for any engineer working with AES67, ST 2110, or IP contribution systems at a level above basic connectivity. ...