IP video network congestion and stress testing

In this whitepaper, PHABRIX discusses the migration towards ST 2110 and ST 2022-6 video networks for production and content delivery is picking up pace, as the advantages of IP versus traditional ‘SDI over coaxial cable’ carriage become more evident. The key drivers of IP include the economies of scale and speed of technology development that stem from the use of Commercial-off-the-Shelf (COTS) IT equipment, along with the introduction of more flexible and scalable business models based on virtualisation and cloud technologies.

However, this migration to IP video networks does present significant technical challenges for broadcast engineers. ‘SDI over coaxial cable’ was designed as a dedicated link for synchronous, point-to-point delivery of constant, high bitrate video. In contrast, IP infrastructures are typically asynchronous in nature, and this can present major issues for real-time video delivery, due to the occurrence of network congestion, latency, and Jitter. To address these issues, there’s a real need for new types of IP signal generation, analysis and monitoring tools to diagnose operational video network issues, and stress test broadcast systems in advance.