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Citing 25M may be a bit of a stretch since A) 4k is reserved for
ISPs with a local cache (last time I checked), B) many (most?)
Netflix customers are not on 4k equipment, C) 4k requires a premium
subscription to Netflix at additional cost that not all customers
have, D) the customer must have ~25M or above service and not be
experiencing congestion on the path between the local Netflix cache
and the customer's equipment, and E) if even one of the above is not
true the Netflix user will typically receive a 3-5Mbps stream,
depending on the device and connection performance.<br>
<br>
On the networks I monitor, forcing a ~3Mbps or lower Netflix stream
would have the effect of lowing the peak rate in the high demand
hour, wasting available equipment and capacity. It would not have
the effect of improving VPN, VoIP, or video conferencing
performance during the hours that those applications are typically
used and I would wager that it would not have an appreciable effect
on those applications even during peak usage periods. If there were
a WiFi or similar issue within a specific household, the best way to
address that is within the household (either turning off unneeded
devices, moving high demand devices closer to the AP or wiring them,
or upgrading to current WiFi technology).<br>
<br>
--Blake<br>
<br>
<br>
<div class="moz-cite-prefix">On 3/20/2020 9:15 AM, Mike Hammett
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1208167341.3777.1584713712096.JavaMail.mhammett@ThunderFuck">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<style type="text/css">p { margin: 0; }</style>
<div style="font-family: arial,helvetica,sans-serif; font-size:
10pt; color: #000000">It's one of those most important things
that matters.
<div><br>
</div>
<div>The end user likely won't notice the difference between 4k
and 720p. They also aren't likely to notice the transition
from one to the other.</div>
<div><br>
</div>
<div>The person on the VPN, VoIP call, video conference, video
game, etc. will very much notice the congested link, even if
it's only a few seconds.</div>
<div><br>
</div>
<div><br>
</div>
<div>Yes, Netflix video is very efficient, if not the most
efficient. They're also one of if not the largest slingers of
bits on the Internet. Small changes in usage of such a huge
player totally eclipse most other usages on the Internet.</div>
<div><br>
</div>
<div><a href="https://help.netflix.com/en/node/306"
moz-do-not-send="true">https://help.netflix.com/en/node/306</a></div>
<div><br>
</div>
<div>Netflix recommends 25 megs for Ultra HD, while only 5 megs
for HD. That's a 5x difference in something people likely
won't notice and would make a big difference on the additional
VPN, VoIP, video conferencing, etc.<br>
<br>
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<div
style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From:
</b>"Blake Hudson" <a class="moz-txt-link-rfc2396E" href="mailto:blake@ispn.net"><blake@ispn.net></a><br>
<b>To: </b><a class="moz-txt-link-abbreviated" href="mailto:nanog@nanog.org">nanog@nanog.org</a><br>
<b>Sent: </b>Friday, March 20, 2020 9:01:18 AM<br>
<b>Subject: </b>Re: COVID-19 vs. our Networks<br>
<br>
Yes, but does that matter? If there's extra capacity on the
link, Netflix runs at full rate. If there is not extra
capacity Netflix rates down to prevent congestion. While
streaming video (including Netflix) uses a lot of bandwidth,
I don't see Netflix causing congestion. It gets a bad wrap,
and I think that's unfair because Netflix is actually really
efficient and really conscientious compared to others.<br>
<br>
<div class="moz-cite-prefix">On 3/20/2020 8:52 AM, Mike
Hammett wrote:<br>
</div>
<blockquote
cite="mid:275515273.3644.1584712337912.JavaMail.mhammett@ThunderFuck">
<style>p { margin: 0; }</style>
<div style="font-family: arial,helvetica,sans-serif;
font-size: 10pt; color: #000000">Some of the pipes
Netflix goes through is also used by other services that
aren't as adaptable.<br>
<br>
<div><span></span><br style="color:rgb( 0 , 0 , 0
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!important;float:none">-----</span><br
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<hr id="zwchr">
<div
style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From:
</b>"Blake Hudson" <a class="moz-txt-link-rfc2396E"
href="mailto:blake@ispn.net" target="_blank"
moz-do-not-send="true"><blake@ispn.net></a><br>
<b>To: </b><a class="moz-txt-link-abbreviated"
href="mailto:nanog@nanog.org" target="_blank"
moz-do-not-send="true">nanog@nanog.org</a><br>
<b>Sent: </b>Friday, March 20, 2020 8:32:45 AM<br>
<b>Subject: </b>Re: COVID-19 vs. our Networks<br>
<br>
<br>
On 3/19/2020 12:22 PM, Mark Tinka wrote:<br>
><br>
> On 19/Mar/20 18:07, Matt Hoppes wrote:<br>
>> Agreed... 720 or 1080 Netflix will work just
as fine as 4K for the<br>
>> next month or two.<br>
> Well, the article claims "Drop stream quality
from HD". That means 4K,<br>
> 1080p and 720p.<br>
><br>
> If you have an OCA on your network, how does this
encourage consumers to<br>
> use the "extra bandwidth" for anything else?<br>
><br>
> Are we assuming we know how consumers want to
spend their time now?<br>
><br>
> Mark.<br>
<br>
Across several eyeball networks I'm not seeing any
noticeable increase <br>
in peak (95%) demand between now and January. Since
Netflix <br>
automatically scales down data rates in the event of
congestion, the <br>
only thing I foresee forcing Netflix to reduce data
rates [ahead of any <br>
congestion] would accomplish is causing excess link
capacity to go <br>
unused (wasted). This sounds like a policy decision
made without a <br>
technical argument... e.g. not a data driven decision,
but a decision <br>
made out of fear or panic.<br>
<br>
</div>
<br>
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</blockquote>
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