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Thread: BitTorrent Throttling ISPs Exposed by Azureus

  1. #1
    IdolEyes787's Avatar Persona non grata
    Join Date
    Feb 2008
    State of Grace
    Data collected by the BitTorrent client Azureus shows that Comcast might only be the tip of the iceberg when it comes to BitTorrent throttling ISPs. Early findings show that customers from quite a few other Internet service providers experience an unusually high amount of TCP-resets.

    ISPs have been throttling BitTorrent traffic for quite a while, but only since the Comcast debacle has this been picked up by mainstream media.

    A few months ago Azureus petitioned the FCC, which led to a FCC hearing in February. One of the complaints from the commission was that there is little data available on the scope of BitTorrent throttling, a gap Azureus now tries to fill by collecting data on the prevalence of TCP-resets among ISPs worldwide.

    Last month Azureus published a plugin through which users can help distinguishing the good from the bad ISPs, and today we have a preview of some early findings. A massive 1,000,000 hours of data from over 8000 users has been collected over the past few weeks. The preliminary results again confirm that Comcast continues to use TCP-resets to manage BitTorrent traffic on their network, but they are not alone.

    The rest of the Vuze/Azureus report (pdf) includes the median reset rates for hundreds of other ISPs
    ISP Country Reset % Comcast USA 23.72% Cogeco Canada 19.13% Emirates Internet UAE 17.86% Cablevision USA 17.58% Brasil Telecom Santa Catarina, Brazil 17.43% TM Net Malaysia 16.80% BellSouth USA 15.88% Tedata Egypt 15.33% Tiscali UK 14.89% AOL USA 14.88% TCP resets seem to be more common for American ISPs, and Comcast leads the bunch. The Azureus team has sent a letter to Cablevision, Cogeco, BellSouth and AOL, where they request that the companies are open about their BitTorrent throttling practices. Thus far, the ISPs have not responded to the letters.

    At the bottom of the list we see the good ISPs, mostly from Europe. There are other ways to throttle BitTorrent traffic, besides using TCP-resets, a list of ISPs who are known to limit BitTorrent traffic is available on the Azureus Wiki.

    ISP Country Reset % Telecom Italia France France 2.53% Orange Nederland The Netherlands 2.57% WiLine USA 2.78% Telefonica Germany 3.60% Freenet Germany 4.21% It has to be noted that the data gathering techniques Vuze uses are far from optimal. The plugin detects all TCP resets on a connection and doesn’t make a distinction between BitTorrent and other traffic, and there is no control group.

    The Azureus/Vuze team will continue to collect data, and stated:
    “We believe that there is sufficient data to suggest that network management practices that ‘throttle’ Internet traffic are widespread. At a minimum, more investigation is required to determine whether these resets are happening in the ordinary course of business or whether they represent the kind of throttling practices which target specific applications and/or protocols, harming the consumer experience and stifling innovation.”

    The preliminary results presented here do indeed indicate that Comcast is not the only ISP that uses TCP resets to slow down BitTorrent traffic. People are encouraged to continue using the plugin so more robust data can be presented in the near future.


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  3. News (Archive)   -   #2
    Aaxel21's Avatar AHHHHH!
    Join Date
    Nov 2007
    Nice study. I was wondering if At&t was dabbling in this. Looks like no matter what ISP I choose there is going to be some sort of throttling.
    Remember bullets always have the right of way.

  4. News (Archive)   -   #3
    BawA's Avatar FST Pioneer BT Rep: +1
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    Jun 2003
    Some Where but not here
    never knew that UAE's Etisalat thrott's as well(son of bitches)
    they have all kind of censorship and now this on top of it.

    "You can be mad as a mad dog at the way things went; you can swear and curse the fates, but when it comes to the end, you have to let go"
    Benjamen button

  5. News (Archive)   -   #4
    glassjaw921's Avatar LSD-DMT-SHROOMS :-D
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    Apr 2008
    New Jersey
    I don't see much of a use for throttling other than the ISPs trying to preserve bandwidth being cheap.
    A buddy and my own File Sharing site
    includes passworded direct D/L's from MU
    Discrete MU links, discrete Filenames,
    Descriptions, & Pass protected .rar's
    interested in an invite? contact me.
    I'll hook you up!

  6. News (Archive)   -   #5
    Demigod's Avatar Poster BT Rep: +35BT Rep +35BT Rep +35BT Rep +35BT Rep +35BT Rep +35BT Rep +35
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    Dec 2006
    Wonder where does Verizon fall in here.

  7. News (Archive)   -   #6
    Join Date
    Feb 2008
    download able
    am a utorrent user but my question is that
    should azurues user's have any thing to worry about?

  8. News (Archive)   -   #7
    well I'll sure download this plugin, I want to make sure to contribute to the denounciation of all throttling ISPs, especially with the recent news suggesting that bittorrent isn't even the real culprit for network overload...


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