Regional differences in P2P

Thu Jul 15 13:30:03 UTC 2004

On Jul 15, 2004, at 5:25 AM, Mikael Abrahamsson wrote:

>
> On Thu, 15 Jul 2004, Sean Donelan wrote:
>
>> Apparently CacheLogic based most of their conclusions on data 
>> collected
>> from a European "tier 1" ISP.  However, another study by Sandvine 
>> found
>> regional differences in file sharing networks.  Europe and the US 
>> don't
>> have the same file sharing patterns, or even popular file sharing
>> programs.
>
> I would also like to add that over here Direct Connect is quite common
> among the more organized and hard-core file swappers, while the
> really-hardcore guys of course are still using private ftp servers.
>
> With proliferation of 10 meg ethernet (full duplex) connections for
> residential use in (especially) northern europe and in asia, users are
> more likely to serve content to other users around the world.
>
> I have made some studies regarding the bandwidth usage pattern between
> equal size populations where the difference is if they have ADSL 
> 8M/800k
> or if they have 10M/10M. The amount of data served is 1/3rd on ADSL
> compared to the symmetric ethernet population, and as a population they
> serve out more content than they download (approx twice the amount) on
> ethernet. The ADSL population peak at approx twice the bw as they 
> serve,
> but on average they serve a little less than they download.
>
> Hmm, the above wasn't very clear, but here it goes in another format:
>
> Ethernet:
>
> Peak almost twice upload as download.
> Average is 2.5-3 times more upload than download.
>
> ADSL 8M/800k:
>
> Peak twice the amount download as upload
> Average is 1.3-1.5 more download than upload
> Upload bw usage is almost flat over time
> Download bw peak is approx double the average level.
>
> My interpretation of this is that p2p networks are quite intelligent in
> using the available bandwidth, and that Copyright holders only 
> solution is
> a "content crunch" due to providers limiting their users upload 
> potential
> due to heavy usage, such as capping the amount of bandwidth allowed per
> month or alike.
>

Let's hope that their users don't try to do things like
videoconferencing from home. (Like I do.)

> -- 
> Mikael Abrahamsson    email: swmike at swm.pp.se
>
>
                                  Regards
                                  Marshall Eubanks

T.M. Eubanks
e-mail : marshall.eubanks at telesuite.com
http://www.telesuite.com