Jan van Doorn is the lead engineer and architect for the “IPCDN” project at Comcast Cable, which is responsible for delivery of all IP video and other media for Comcast. Built around Apache Traffic Server, the control plane software driving IPCDN was developed in-house and recently open sourced as Traffic Control (http://traffic-control-cdn.net/). Jan has presented at ApacheCon and many other CDN / large system related conferences in the past.