With events like Thursday Night Football and the Cricket World Cup and IPL Finals, the past year has seen live streaming audiences routinely reach tens of millions of concurrent viewers. Combined with increasing bitrates for 4K/8K/AR, are we approaching an inflection point for network strain from live streaming? This talk will examine TreeDN, a tree-based CDN architecture designed to solve the scaling challenges of live streaming to mass audiences. TreeDN enables operators to offer Replication-as-a-Service (RaaS) at a fraction the cost of traditional, unicast CDNs – in some cases, at $0 additional cost to the infrastructure – and paves the way for newer, more immersive content that is not economically viable with content delivery approaches typically in use today. Lenny Giuliano: Lenny Giuliano is a Co-chair of the IETF’s MBONED Working Group and a Distinguished Systems Engineer at Juniper Networks. He has written articles for Forbes, TechCrunch and Network World and coauthored Interdomain Multicast Routing: Practical Juniper Networks and Cisco Systems Solutions (Addison-Wesley 2002). He has coauthored or contributed to more than a dozen RFCs and Internet Drafts. Prior to joining Juniper, Lenny worked in Sprintlink Network Operations.