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NetFlix Internet Share: 1/3 down, 10% up!

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Owen Densmore

NetFlix Internet Share: 1/3 down, 10% up!

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I had heard that NetFlix takes up to 1/3 of the national bandwidth during prime time (peak usage). But I *didn't* know it took nearly 10% up peak upstream!

http://arstechnica.com/information-technology/2014/11/netflix-takes-up-9-5-of-upstream-traffic-on-the-north-american-internet/

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Russ Abbott

Re: NetFlix Internet Share: 1/3 down, 10% up!

That's quite a statistic. It makes them sound like they are using too many community resources--although I don't know if that's the point you were making. But another way to think about it is that it's NetFlix users who are using that bandwidth. And they are paying their ISPs for whatever bandwidth they use. Why shouldn't they use what they pay for?

-- Russ Abbott
_____________________________________________

Professor, Computer Science
California State University, Los Angeles

Google voice: 747-999-5105; CS Dept.: 323-343-6690

Google+: http://GPlus.to/RussAbbott,

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CS Wiki and the courses I teach.

A draft of "Abstractions and Implementations."

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On Fri, Nov 21, 2014 at 11:12 AM, Owen Densmore <[hidden email]> wrote:

I had heard that NetFlix takes up to 1/3 of the national bandwidth during prime time (peak usage). But I *didn't* know it took nearly 10% up peak upstream!

http://arstechnica.com/information-technology/2014/11/netflix-takes-up-9-5-of-upstream-traffic-on-the-north-american-internet/

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Roger Critchlow-2

Re: NetFlix Internet Share: 1/3 down, 10% up!

But I have no idea what I could be sending Netflix that occupies 1/4 the bandwidth that I get from them. Are they watching me on my web cam or something?

I really have to start reading those shrink wrap licenses more carefully,

-- rec --

On Fri, Nov 21, 2014 at 12:29 PM, Russ Abbott <[hidden email]> wrote:

That's quite a statistic. It makes them sound like they are using too many community resources--although I don't know if that's the point you were making. But another way to think about it is that it's NetFlix users who are using that bandwidth. And they are paying their ISPs for whatever bandwidth they use. Why shouldn't they use what they pay for?

-- Russ Abbott
_____________________________________________
Professor, Computer Science
California State University, Los Angeles

  Google voice: 747-999-5105; CS Dept.: <a href="tel:323-343-6690" value="+13233436690" target="_blank">323-343-6690
  Google+: http://GPlus.to/RussAbbott,
http://tinyurl.com/RussAbbott, or
http://google.com/+RussAbbottCa
vita: sites.google.com/site/russabbott/
  CS Wiki and the courses I teach.
A draft of "Abstractions and Implementations."
How the Fed can fix the economy (2 pages): ssrn.com/abstract=1977688.
_____________________________________________

On Fri, Nov 21, 2014 at 11:12 AM, Owen Densmore <[hidden email]> wrote:
I had heard that NetFlix takes up to 1/3 of the national bandwidth during prime time (peak usage). But I *didn't* know it took nearly 10% up peak upstream!

http://arstechnica.com/information-technology/2014/11/netflix-takes-up-9-5-of-upstream-traffic-on-the-north-american-internet/

============================================================
FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com

============================================================
FRIAM Applied Complexity Group listserv
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Steve Smith

Re: NetFlix Internet Share: 1/3 down, 10% up!

Roger -
> But I have no idea what I could be sending Netflix that occupies 1/4
> the bandwidth that I get from them. Are they watching me on my web
> cam or something?
Yeh Nielson owns all your facial responses and what kinds of dressing
you put on your popcorn whilst watching movies ;)

The upstream bandwidth IS a mystery... one assumes that someone else
less given to idle speculation on such topics than I has already sussed
this out a couple more levels of indirection?!

At first I assumed that Netflix (like YouTube) had some kind of "upload
capability" but I'm pretty sure I'd know that if it did... and it would
mostly just be cute cat videos and people popping pimples.

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Joshua Thorp

Re: NetFlix Internet Share: 1/3 down, 10% up!

The article lays the blame at ACK packets...

“”"
So how do Netflix customers send so much data today? The answer is mostly in “ACK packets,” Deeth said. Signifying “acknowledgement” that data has been received, ACK packets are part of the TCP’s (Transmission Control Protocol’s) three-way handshake that connects client devices to servers over the Internet. The third step of the process has the client (i.e. a Netflix subscriber) sending acknowledgement back to Netflix’s servers.

These ACK packets are so numerous that they can sometimes interfere with downloads. Internet service plans with upload speeds that are much smaller than download speeds exacerbate this problem, Sandvine wrote in its fall 2011 report.

“If upstream is so heavily utilized that ACKs fail to reach the sender, then TCP responds by backing off its sending rate, which to the subscriber means reduced downstream speeds and will ultimately manifest as a downgrade in video quality,” Sandvine wrote.
“”"

> On Nov 21, 2014, at 1:38 PM, Steve Smith <[hidden email]> wrote:
>
> Roger -
>> But I have no idea what I could be sending Netflix that occupies 1/4 the bandwidth that I get from them. Are they watching me on my web cam or something?
> Yeh Nielson owns all your facial responses and what kinds of dressing you put on your popcorn whilst watching movies ;)
>
> The upstream bandwidth IS a mystery... one assumes that someone else less given to idle speculation on such topics than I has already sussed this out a couple more levels of indirection?!
>
> At first I assumed that Netflix (like YouTube) had some kind of "upload capability" but I'm pretty sure I'd know that if it did... and it would mostly just be cute cat videos and people popping pimples.
>
>
>
> ============================================================
> FRIAM Applied Complexity Group listserv
> Meets Fridays 9a-11:30 at cafe at St. John's College
> to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com

Gillian Densmore

Re: NetFlix Internet Share: 1/3 down, 10% up!

In a paralel relation over this summer comcast reported that Blizzard
and Steam traffic is about 45-52% of there data down. and roughly 14%
up often resaulting in congestion-

Does this meen that media (netflix, youtube etc) puts a large strain
in just comcast and company?

On Fri, Nov 21, 2014 at 1:46 PM, Joshua Thorp <[hidden email]> wrote:

> The article lays the blame at ACK packets...
>
>
> “”"
> So how do Netflix customers send so much data today? The answer is mostly in “ACK packets,” Deeth said. Signifying “acknowledgement” that data has been received, ACK packets are part of the TCP’s (Transmission Control Protocol’s) three-way handshake that connects client devices to servers over the Internet. The third step of the process has the client (i.e. a Netflix subscriber) sending acknowledgement back to Netflix’s servers.
>
> These ACK packets are so numerous that they can sometimes interfere with downloads. Internet service plans with upload speeds that are much smaller than download speeds exacerbate this problem, Sandvine wrote in its fall 2011 report.
>
> “If upstream is so heavily utilized that ACKs fail to reach the sender, then TCP responds by backing off its sending rate, which to the subscriber means reduced downstream speeds and will ultimately manifest as a downgrade in video quality,” Sandvine wrote.
> “”"
>
>> On Nov 21, 2014, at 1:38 PM, Steve Smith <[hidden email]> wrote:
>>
>> Roger -
>>> But I have no idea what I could be sending Netflix that occupies 1/4 the bandwidth that I get from them. Are they watching me on my web cam or something?
>> Yeh Nielson owns all your facial responses and what kinds of dressing you put on your popcorn whilst watching movies ;)
>>
>> The upstream bandwidth IS a mystery... one assumes that someone else less given to idle speculation on such topics than I has already sussed this out a couple more levels of indirection?!
>>
>> At first I assumed that Netflix (like YouTube) had some kind of "upload capability" but I'm pretty sure I'd know that if it did... and it would mostly just be cute cat videos and people popping pimples.
>>
>>
>>
>> ============================================================
>> FRIAM Applied Complexity Group listserv
>> Meets Fridays 9a-11:30 at cafe at St. John's College
>> to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com
>
>
> ============================================================
> FRIAM Applied Complexity Group listserv
> Meets Fridays 9a-11:30 at cafe at St. John's College
> to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com

Arlo Barnes

Re: NetFlix Internet Share: 1/3 down, 10% up!

In reply to this post by Joshua Thorp

On Fri, Nov 21, 2014 at 1:46 PM, Joshua Thorp <[hidden email]> wrote:

The article lays the blame at ACK packets...

“”"These ACK packets are so numerous that they can sometimes interfere with downloads.“”"

Not having ever used Netflix, I know almost nothing about it. Why not use UDP?

More interesting to me is the BitTorrent usage percentages. Absolute numbers would help ascertain how [a]symmetrical BT is (the supposition being that people leech more than they seed)...of course, with peer-to-peer, it would be a little harder to figure out which is the 'server' and which is the 'client'.

-Arlo James Barnes