Thanks for the reality check Kilroy!
Glad to see you are still on top of your game.
Regards
Craig
On Aug 11, 2015, at 12:05 PM, Kilroy Hughes <Kilroy.Hughes@xxxxxxxxxxxxx>
wrote:
The component of internet architecture that is totally inadequate for TV is
the backbone. It would be impossible to deliver packets from an origin
server to even a few thousand viewers watching a show, e.g. via RTP.
Multicast is nice in theory for synchronized live viewing, but a failure in
practice. A packet routing network has significant limitations.
What makes internet TV at all possible is edge caching, where one copy of
each video segment can be sent over the backbone to edge servers that can
route the same segments to potentially millions of e.g. Super bowl or
"Breaking Bad" viewers. Akamai, Netflix, Comcast, Verizon, etc. have
overlaid a hierarchical storage network on the internet, so most of the top
Netflix movies and popular TV shows are sitting on a hard disk at your
cable/telco or ISP one or two hops away.
Still, it won't be adequate for projected video growth unless cache
efficiency is optimized by reducing the number of redundant encodings
required (each segment of video and audio encoded at a variety of bitrates,
codecs, encoding parameters, aspect ratios, frame rate, EOTF, container
formats, manifest format, encryption, etc.). A streaming provider today who
want to reach all devices in the Google, Apple, Adobe, Microsoft, Samsung,
etc. empires has to encode each video in a dozen flavors, a dozen bitrates,
and sometimes multiple protection systems, codecs, languages, subtitles, etc.
Using an object oriented common media format can increase edge cache
efficiency anywhere from 10X to 1000X. Building out 10X or 1000X backbone
and other network capacity to maintain the current level of chaos isn't an
option within time and money limits. Especially with the increased load on
wireless bandwidth for mobile video consumption over the last mile.
Kilroy Hughes | Senior Digital Media Architect |Windows Azure Media Services
| Microsoft Corporation
-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] On
Behalf Of Manfredi, Albert E
Sent: Monday, August 10, 2015 7:16 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] NTIA: National Broadband Map has Helped Chart Broadband
Evolution
While it's true that last mile bandwidth alone I not the whole answer, I
think we can safely say that Craig's idea that we need decades to have
broadband adequate for TV deployed, even HDTV, is a tad overstated. As this
pub states, already today, 98 percent of the country has access to broadband
more than adequate for Internet TV.
Bert
-----------------------------------------
https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fwww2.ntia.doc.gov%2fnational-broadband-map-has-helped-chart-broadband-evolution&data=01%7c01%7cKilroy.Hughes%40microsoft.com%7c9f2e3032fd334934850c08d2a1f2d968%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=4ofWQV9RYCPsJZwlymrB9dqBrPCBZ9ZD0y0V%2bX3vx%2fk%3d
Mon, March 23, 2015 by Anne Neville, Director, State Broadband Initiative
. . .
The most significant finding from the latest data, announced by President
Obama earlier today, is that the United States has met the President's goal
of ensuring 98 percent of the country has access to wireless broadband at a
speed of at least 6 megabits per second (Mbps) down/1.5 Mbps up. Other key
findings from the June 30, 2014 dataset include:
* As we have seen in every data release since our first in February 2011,
broadband speeds continue to increase. The rate at which we are seeing speeds
increase, however, is slower at every national speed threshold that we track.
* At lower speeds, Internet access is widely available across both rural and
urban areas. The latest data shows that 99 percent of the country has access
to advertised broadband speeds at 10 megabits per second (Mbps) through
either wired or wireless services, and 93 percent have access to this speed
through wired service alone.
* Nearly 85 percent of the country has access to wired broadband at a speed
of 25 Mbps down and 3 Mbps up, which is the Federal Communications
Commission's (FCC) new benchmark level for broadband speeds. Cable provides
82.69 percent of the U.S. population with speeds of 25 Mbps or more, while
fiber to the premises serves about one in four Americans (24.20 percent) at
that speed.
* However, there is still a big gap between urban and rural areas when it
comes to access to broadband at 25 Mbps. The latest data finds that only 55
percent of those in rural communities, and 32 percent of tribal lands have
access to broadband at 25 mbps compared with 94 percent of urban areas.
. . .
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