In reply to Paul Jackson.

Hello Paul - According to the Cisco VNI analysis, there is a projected increase in live Internet video (15-fold growth from 2017 - 2022). This shift reflects the multicast/broadcast nature of Internet traffic (as you have noted). Comparatively, the majority of Internet video traffic will continue to be unicast in nature by 2022 (but it is clearly shifting). We have factored this into our traffic forecast assumptions. You can learn more about our VNI Forecast methodology through our public Q&A document: https://www.cisco.com/c/en/us/solutions/collateral/service-provider/visual-networking-index-vni/qa_c67-482177.html