Ok guys and girls -- just who is telling the truth.

[David Farber <dave () farber net>]

 Comcast assures us that they have stopped the forged reset method of  
limiting BitTorrent. So I ran the Glasnost test on my home machine --  
a MAC running Leopard and got the following result.

Sounds and looks like at least in Pittsburgh they are still using the  
TCP RST to limit BitTorrent upload traffic (or the Glosnost software  
is in error (I dount that but it could be)).

Comcast: what gives.


Dave Farber

Distinguished Career Professor of
Computer Science and Public Policy
Carnegie Mellon University
and Former Chief Technologist of the FCC
Cell:  +1 412 726 9889




Glasnost: Test if your ISP is manipulating BitTorrent traffic
Results for your host (c-71-206-247-106.hsd1.pa.comcast.net -  
71.206.247.106):
Is BitTorrent traffic on a well-known BitTorrent port (6881) throttled?

* 2 out of 2 BitTorrent transfers were interrupted while uploading  
(seeding) using forged TCP RST packets. It seems like your ISP hinders  
you from uploading BitTorrent traffic to our test server.

* The BitTorrent download worked. Our tool was successful in  
downloading data using the BitTorrent protocol.

* There's no indication that your ISP rate limits your BitTorrent  
downloads. In our tests a TCP download achieved minimal 2020 Kbps  
while a BitTorrent download achieved maximal 3187 Kbps. You can find  
details here.


Is BitTorrent traffic on a non-standard BitTorrent port (4711)  
throttled?

* 2 out of 2 BitTorrent transfers were interrupted while uploading  
(seeding) using forged TCP RST packets. It seems like your ISP hinders  
you from uploading BitTorrent traffic to our test server.

* The BitTorrent download worked. Our tool was successful in  
downloading data using the BitTorrent protocol.

* There's no indication that your ISP rate limits your BitTorrent  
downloads. In our tests a TCP download achieved minimal 2509 Kbps  
while a BitTorrent download achieved maximal 2936 Kbps. You can find  
details here.


Is TCP traffic on a well-known BitTorrent port (6881) throttled?

* There's no indication that your ISP rate limits all downloads at  
port 6881. In our test, a TCP download on a BitTorrent port achieved  
at least 2020 Kbps while a TCP download on a non-BitTorrent port  
achieved at least 2509 Kbps. You can find details here.

* There's no indication that your ISP rate limits all uploads at port  
6881. In our test, a TCP upload on a BitTorrent port achieved at least  
2264 Kbps while a TCP upload on a non-BitTorrent port achieved at  
least 2449 Kbps. You can find details here.




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