{"guid":"062b49ae-ebea-58e6-906c-ff5f30f1990a","title":"Edge-of-Your-Seat Streaming: inside waipu’s terrabit-scale live-video CDN","subtitle":null,"slug":"denog17-75852-edge-of-your-seat-streaming-inside-waipu-s-terrabit-scale-live-video-cdn","link":"https://pretalx.com/denog17/talk/SZZGTP/","description":"Live video stresses every layer of a CDN: traffic spikes hit terabit scale in seconds, latency budgets shrink to single-digit seconds, and a single congested peering link can stall millions of viewers. This talk walks through how we built a custom Golang edge stack that now serves 5.5 Tbps across five German PoPs. We’ll unpack the caching hierarchy, peer-aware user steering that exploits BGP and ECMP, and the trade-offs between channel affinity, cache size, and uplink utilization. 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