Explore a technical conference presentation that delves into TreeDN, a revolutionary tree-based CDN architecture designed for handling massive-scale live streaming events. Learn how this innovative approach addresses the growing challenges of delivering content to tens of millions of concurrent viewers, as exemplified by events like Thursday Night Football and Cricket World Cup Finals. Discover how TreeDN's Replication-as-a-Service (RaaS) model significantly reduces delivery costs compared to traditional unicast CDNs, potentially eliminating additional infrastructure expenses. Gain insights from Distinguished Systems Engineer Lenny Giuliano, IETF MBONED Working Group Co-chair, as he explains how this architecture enables the economic viability of delivering high-bitrate 4K/8K/AR content and paves the way for more immersive streaming experiences.