[CalFiber] FW: The Asymmetric Nature of Internet Traffic

Harold Feld hfeld at publicknowledge.org
Tue Mar 23 12:38:09 PDT 2021


By pure coincidence, this is what cable is really bad at.

DOCSIS achieves its faster downloads by sacrificing upload.

Harold Feld, Senior VP
(202) 559-1044 | @haroldfeld
Public Knowledge | @publicknowledge | www.publicknowledge.org
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On Tue, Mar 23, 2021 at 12:10 PM Ernesto Falcon <ernesto at eff.org> wrote:

> Cable lobby wants you to know that no one needs a fast upload.
>
> Oh but if you do need a faster upload, they’ll throttle you and your
> neighbors but for some reason they left that part out (
> https://arstechnica.com/tech-policy/2020/06/cox-slows-internet-speeds-in-entire-neighborhoods-to-punish-any-heavy-users/).
>
>
>
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=164bcd903c&e=e0a4bca3b3>
>
> ncta.com
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=c8b375031a&e=e0a4bca3b3>
> The Asymmetric Nature of Internet Traffic
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=d3a22b59e2&e=e0a4bca3b3>
>
> Article | March 22, 2021
>
>
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=b59fb0eaa1&e=e0a4bca3b3>
>
> Since the beginning of the internet, residential broadband traffic has
> been asymmetric in nature, as users generally receive far more information
> (streaming for instance) than they send (uploading photos to Facebook for
> instance). Network engineers early on recognized that residential customers
> were primarily consumers of information, not producers of information, and
> designed broadband service to favor this consumer behavior.
>
> In fact, over the last decade the average downstream-to-upstream traffic
> ratio has grown
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=75d9779df4&e=e0a4bca3b3>
> from 3:1 in 2010 to over 14:1 by the beginning of 2019.
>
> In 2020, as the pandemic resulted in millions of consumers working and
> learning from home, broadband internet service providers faced an
> unprecedented spike in traffic. Since March 2020, cable networks have seen
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=4e6423877a&e=e0a4bca3b3>
> a 30.8% growth in downstream traffic and a 54.8% growth in upstream.
> Despite these extraordinary changes, the internet continues to perform well.
>
> Even with such growth, the data shows that downstream traffic still
> dominates as a percent of total traffic. The chart below compiled with data
> from NCTA member companies shows that the ratio of downstream-to-upstream
> traffic has changed only slightly during the pandemic, and as of December
> 2020, reflected a downstream-to-upstream traffic ratio of 16:1.
>
>
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=ef980a8968&e=e0a4bca3b3>
>
> What is driving all of the downstream? Not surprisingly, video streaming
> is the king of internet traffic. One cable provider reported
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=6301552cef&e=e0a4bca3b3>
> that video streaming traffic grew 70% in 2020. And while video conferencing was
> growing
> <https://ncta.us4.list-manage.com/track/click?u=5c9cbb7072f1682388e57f94b&id=d6c65c251b&e=e0a4bca3b3>
> anywhere from 300-700% over its pre-shutdown levels, that traffic still
> accounts for less than 5% of overall network traffic.
>
> The bottom line is that the overall consumption of broadband has been and
> will continue to be significantly asymmetrical.
>
>
>
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>
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