Re: [BEHAVE] [v6ops] Home NAPT44 - How many ports?

ivan c <ivan@cacaoweb.org> Tue, 18 June 2013 21:55 UTC

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To: "Rajiv Asati (rajiva)" <rajiva@cisco.com>
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Date: Tue, 18 Jun 2013 23:56:04 +0200
From: ivan c <ivan@cacaoweb.org>
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Subject: Re: [BEHAVE] =?utf-8?q?=5Bv6ops=5D_Home_NAPT44_-_How_many_ports=3F?=
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On Tue, 18 Jun 2013 20:24:55 +0000, "Rajiv Asati (rajiva)"
<rajiva@cisco.com> wrote:

> 
> Interesting enough, many of the recent measurements suggest that the
> torrent' like p2p applications are no longer the bandwidth consumers the
> way they once used to be. In fact, they are now perceived to be 10-20%
(and
> declining) of internet bandwidth. The largest internet world traffic
> consumer is HTTP (and HTTP video).
> 
>
http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/images/VNI_Hyperconnectivity_WP-12.jpg
> 
>
http://www.michaelsinsight.com/2009/10/sandvine-traffic-study-confirms-the-decline-of-p2p.html
> 
> http://www.research.att.com/export/sites/att_labs/techdocs/TD_100193.pdf
> 
> 
> Nonetheless, I do think about the number of ports that these p2p
> applications can consume/exhaust, since that could be in 100s (or in
> 1000s). Thankfully, many home router implementations may provide
> capabilities to restrict the exhaustion by the p2p apps.
> 

Interesting links. I wish we had access to more studies like the third
one.
However these documents seem to refer to the situation in North America,
who has Netflix, Hulu, Youtube, and is back in 2009. Apparently after the
Megavideo debacle in 2011, there was a significant drop of traffic towards
video streaming services.

It is difficult to get information about internet usage per
continent/countries.
Europe: Netflix and Hulu are not available. Netflix actually just came to
the UK. They make a large chunk of the US traffic. Youtube is heavily
throttled in France. From studies done by Orange, P2P still seems the
dominant usage.
China: P2P live streaming appears to be massively used.
Japan, India, South America: i have little information


-- 
_Ivan Chollet_