Re: F.C.C. to Look at Complaints Comcast Interferes With Net - New York Times

[David Farber <dave () farber net>]

________________________________________
From: WWWhatsup [joly () punkcast com]
Sent: Wednesday, January 09, 2008 9:34 AM
To: David Farber
Subject: Re: [IP] F.C.C. to Look at Complaints Comcast Interferes With Net - New York Times

In a recent article for The Register: 'Dismantling a Religion: The EFF's Faith-Based Internet'
http://www.theregister.co.uk/2007/12/13/bennett_eff_neutrality_analysis/ engineer Tichard Bennett
digs into the technical details of Comcast's activity with BitTorrent which, after a certain amount of connections
have been reached, is to spoof connection resets to BT clients. According to Bennett, particularly in the
DOCSIS system used on cable networks, the actual number of packets transmitted is as crucial to network performance
as the bandwidth used. Cutting the number of connections that a BitTorrent client uses can actually improve
throughput without impeding access.

Apparently it is a growing mood at the IETF that the the bandwidth based principle of 'flow rate fairness'
- implicitly governed in TCP by dropped packets - is being abused by clients that make huge numbers of
connections. Something will have to be done, perhaps by rejiggering the packet-dropping aspect.

joly




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