A recent study by Bell Labs finds that "..By 2020 people in the US will be consuming 7 hours of video per day - mostly video on demand - which will place disproportionate stress on the IP edge of broadband networks .. The proportion of time spent watching managed video-on-demand services will grow from 33% to 77% .. Internet-based video consumption each year will grow twelvefold".
And the network effect:
- As unicast replaces multicast/broadcast - and video traffic levels surge - centralized content injection will drive up the cost of video delivery in the IP service network, as well as video server and link congestion, and impact service availability and quality.
- The extra expense of maintaining multiple networks, one for managed video and one for high-speed Internet service, will become prohibitive.
- BRAS routers simply do not have the capacity to handle the increased traffic load or the service intelligence to support the personalized video and Internet services customers are demanding.