If you play this video, a connection to servers of Youtube will be established. Youtube then will be able to see, which web page you are visiting. If you are logged in to your Youtube-account, Youtube can also assign your personal surfing.
During SPS IPC Drives 2016 we had the opportunity to talk to Peter Zahn from ISW (Institut für Steuerungstechnik) about TSN. Time-Sensitive Networking is the next standard in terms of real-time data transmission over regular Ethernet connections.