Netflix Streams Eating a Little Less of The Internet: Sandvine

Netflix's new encoding scheme is more efficient, but OTT service still dominates downstream traffic on fixed networks
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Netflix’s new, more efficient encoding scheme has resulted in a decline in its traffic share on fixed broadband networks, but the OTT service remains the Internet’s dominant force by a wide margin, according to Sandvine's latest Global Internet Phenomena study.

The study, based on anonymous subscriber data collected by Sandvine in March 2016 from more than 300 service providers, found that Netflix represented 35.2% of traffic on North America fixed networks, a slight decrease from the 37.1% it represented when Sandvine issued its previous study in December 2015.

Netflix, which has about 46.97 million U.S. streaming subs and 34.53 million internationally, began to roll out its more tailored, title-by-title encoding approach late last yearand pivot away from its previous, fixed “one-size-fits all” bitrate ladder. Under the new approach, Netflix applies more bits when needed (in a movie or TV show with a lot of action scenes, for example) and less bits where they aren’t (such as in animation titles).

“It should be noted that at the time of collection, it was unclear if Netflix had re-encoded their entire library, so an update in the second half of this year may better reveal the impact Encode Optimization may have had on networks in the region,” the bandwidth management company noted in the study.

Other notable eaters of downstream data on North American fixed access networks included YouTube (17.53%), Amazon Video (4.26%), iTunes (2.91%), and Hulu (2.68%).

Sling TV, Dish’s OTT-TV service, accounted for less than 1% of peak downstream traffic, but, for the first time, was among the top 20 apps on most networks, Sandvine said. 

Netflix, at 32.72%, also led on aggregate bandwidth on fixed access networks in North America, followed by YouTube (17.31%). BitTorrent led the upstream category with 18.37%, compared to YouTube (13.13%) and Netflix (10.33%).

The story is different on the mobile front. YouTube (20.87%) was tops on the downstream on North American mobile access networks, compared to Facebook (13.97%) and Netflix (3.72%). Facebook absorbed the most upstream data on those mobile nets (14.85%), compared to YouTube (5.01%), Snapchat (4.36%), Instagram (3.35%) and BitTorrent (2.16%).

Sandvine said real-time entertainment remained the traffic category in the region, responsible for over 71% of downstream bytes during peak period, up from 70% in the last report.

With 4K streaming, high dynamic range (HDR) content and virtual reality expected to rise in adoption, Sandvine sees North America becoming the first region to see real-time entertainment surpass the 80% downstream traffic streaming threshold by the end of 2020. 

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