[57210] in North American Network Operators' Group
Re: State Super-DMCA Too True
daemon@ATHENA.MIT.EDU (Petri Helenius)
Mon Mar 31 16:09:49 2003
From: "Petri Helenius" <pete@he.iki.fi>
To: "Stephen Sprunk" <stephen@sprunk.org>,
"Jack Bates" <jbates@brightok.net>
Cc: "Richard A Steenbergen" <ras@e-gerbil.net>,
"Peter Galbavy" <peter.galbavy@knowtion.net>,
"Mike Lyon" <mlyon@fitzharris.com>,
"Simon Lyall" <simon.lyall@ihug.co.nz>,
"Tony Rall" <trall@almaden.ibm.com>,
"North American Noise and Off-topic Gripes" <nanog@merit.edu>
Date: Tue, 1 Apr 2003 00:08:15 +0300
Errors-To: owner-nanog-outgoing@merit.edu
> Well, most p2p apps live on well-known ports, and Cisco's QOS mechanism
> allows easy classification on ports. Yes, most of the p2p apps are
> port-agile -- but only if they are completely blocked. My experience is
> that if you let the p2p stuff through, it'll stick to its default port and
> you can police with impunity.
Our data shows that between 30% and 50% of p2p data flows on "non-standard"
ports if you run an unblocked environment.
Pete
