[funsec] Not so fast, broadband providers tell big users (fwd)
Jeremy Chadwick
nanog at jdc.parodius.com
Tue Mar 13 16:13:01 UTC 2007
On Tue, Mar 13, 2007 at 03:52:57PM +0000, Peter Corlett wrote:
>
> On Tue, Mar 13, 2007 at 08:27:04AM -0700, Roland Dobbins wrote:
> > On Mar 13, 2007, at 8:17 AM, Chris L. Morrow wrote:
> [...]
> >> what business drivers are there to put more bits on the wire to the end
> >> user?
> > BitTorrent.
>
> The download speed is however limited by the upload speed of the peers,
> which acts as its own rate-limit given that the bandwidth on broadband
> connections is somewhat asymmetric.
"Ideally" that's how it's supposed to work, but isn't how it works as of
present-day. Speaking solely about the BitTorrent protocol, upstream
does not affect downstream speed. In fact, there's a BitTorrent client
out there which specifically *does not* share any of the data being
downloaded (thus acting as a pure leeching client):
http://dcg.ethz.ch/projects/bitthief/
--
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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