[LINK] Re: RFI: P2P's Share of Internet Bandwidth

[Roger Clarke]

Andrew Odlyzko replied:
>Unfortunately I don't have any real hard data, just rumors.  But the 
>Telegeography quote is definitely correct, P2P fraction of traffic 
>varies tremendously among all the different networks.
>
>A key problem is that much of P2P traffic is now hidden, sent in 
>forms that are not immediately recognizable as P2P. And of course we 
>have to remember that there is rapid growth in totally legitimate 
>P2P traffic.
>
>
>	Roger's Notes below.
>
>	Cachelogic says P2P is verrrrry big:
>	http://www.cachelogic.com/research/p2p2005.php
>
>	Glasner talks that up:
>	http://www.wired.com/news/business/0,67202-0.html
>
>	Sevcik is sceptical (and cites you):
> 
>	http://www.bcr.com/opinion/next_generation_networks/peer-to-peer_traffic_internet_myth_born_20051101647.htm
>	"My review of the data in Odlyzko's presentation indicates that
>	peer-to-peer represented 10 to 20 percent of the traffic handled.
>	This is the same year that CacheLogic started to see 60 percent
>	peer-to-peer traffic"
>
>	Telegeography (undated):
> 
>	http://www.telegeography.com/ee/free_resources/reports/gig/gig_exec_sum.php
>	says "On some backbones, peer-to-peer (P2P) file sharing accounts for
>	a huge proportion of traffic, while on others P2P plays little role
>	at all. One thing is clear-at least for now, Web traffic still
>	accounts for the largest share of traffic on most networks"
>
>	Gong discusses recognition techniques:
>	http://www.securityfocus.com/print/infocus/1843
>
>	Yang et al. provide an analysis (which I've not examined yet):
>	http://net.pku.edu.cn/~tianjing/download/iccs_lncs_ym.pdf

-- 
Roger Clarke                  http://www.anu.edu.au/people/Roger.Clarke/

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Visiting Professor in Info Science & Eng  Australian National University
Visiting Professor in the eCommerce Program      University of Hong Kong
Visiting Professor in the Cyberspace Law & Policy Centre      Uni of NSW