[100306] in North American Network Operators' Group
Re: BitTorrent swarms have a deadly bite on broadband nets
daemon@ATHENA.MIT.EDU (Marshall Eubanks)
Sun Oct 21 14:44:41 2007
In-Reply-To: <Pine.GSO.4.64.0710211256190.11924@clifden.donelan.com>
Cc: nanog@merit.edu
From: Marshall Eubanks <tme@multicasttech.com>
Date: Sun, 21 Oct 2007 14:43:00 -0400
To: Sean Donelan <sean@donelan.com>
Errors-To: owner-nanog@merit.edu
Note that this is from 2006. Do you have a link to the actual paper, by
Terry Shaw, of CableLabs, and Jim Martin of Clemson ?
Regards
Marshall
On Oct 21, 2007, at 1:03 PM, Sean Donelan wrote:
>
>
> http://www.multichannel.com/article/CA6332098.html
>
> The short answer: Badly. Based on the research, conducted by
> Terry Shaw,
> of CableLabs, and Jim Martin, a computer science professor at
> Clemson
> University, it only takes about 10 BitTorrent users bartering
> files on a
> node (of around 500) to double the delays experienced by
> everybody else.
> Especially if everybody else is using "normal priority" services,
> like
> e-mail or Web surfing, which is what tech people tend to call
> "best-effort" traffic.
>
> Adding more network bandwidth doesn't improve the network
> experience of other network users, it just increases the
> consumption by P2P users. That's why you are seeing many
> universities and enterprises spending money on traffic shaping
> equipment instead of more network bandwidth.
>
