Re: BitTorrent is 35% of traffic ?

[Petri Helenius <pete () he iki fi>]

Marshall Eubanks wrote:

> Reality check
>
> This week's netflow for the Internet 2
>
>  
Netflow is based on port numbers and many run bittorrent on fairly 
random ports. Look at the 30%+ unidentified on the report.

Pete

> http://netflow.internet2.edu/weekly/20041025/
>
> has BitTorrent taking up about 4.8 % of the traffic, http is 15 to 18%, and all
> file sharing is about 10%, down from 50% 2 years ago.
>
> Since file sharing and related uses are generally heavy traffic sources on I2, I would conclude
> that the Reuter's numbers are too high. 
>
> regards
> Marshall Eubanks
>
>
> On Fri, 5 Nov 2004 08:59:42 +0900
> Tony Li <tony.li () tony li> wrote:
>  
>
> > For those not familiar, BitTorrent is a file sharing app that is 
> > commonly
> > used for exchanging full movies.  As such, folks are moving gigabyte
> > files regularly and it's not surprising that this is detectable.
> > Shuffling .mp3's around would be trivial by comparison.
> >
> > Tony
> >
> >
> > On Nov 5, 2004, at 6:34 AM, Christopher L. Morrow wrote:
> >
> >    
> >
> > > On Thu, 4 Nov 2004, Deepak Jain wrote:
> > >
> > >      
> > >
> > > > http://in.tech.yahoo.com/041103/137/2ho4i.html
> > > >
> > > > According to Reuters, BT is more traffic than web/other forms of
> > > > traffic? I'm thinking the sampling methodology here might be a little
> > > > skewed.
> > > >        
> > > 1) where was the measurement done?
> > > 2) how was the measurement done?
> > > 3) what population was sampled?
> > >
> > > On some networks BT might account for far more than 30%, on others far,
> > > far less... Perhaps the writers will answer?
> > >
> > > -Chris
> > >
> > >      
>
>