Comcast opens up about how it manages traffic

[David Farber <dave () farber net>]

________________________________________
From: Henrik B [blondino () gmail com]
Sent: Monday, April 21, 2008 5:27 PM
To: David Farber
Subject: Re: [IP] Comcast opens up about how it manages traffic

Dear Dave,

Maybe for IP if you think it's appropriate

I find this whole discussion amusing and troubling at the same time.
Comcast is continuously telling us through TV commercials that they
give you 12 Mbit/s and brags about their PowerBoost that makes running
to Peru and back a matter of fractions of a second. And then Mr
Bowling defines an excessive usage as "the equvalent of two T-1
lines". If I recall correctly a T-1 line has throughput of 1.544
Mbit/s, which means that if you use 3 Mbit/s, or 25% of the capacity
that Comcast says that you have, then you are an excessive user.

My opinion is taht if Comcast sells me TCP/IP based Internet
connectivity, then that is what they should give me. If they are
overselling their capacity, which I'm certain that they are, then that
should not be my problem, should it? If they have a problem defining
the product they are selling, it's no wonder that they have a problem
putting a price on it.

In addition, I think USA Today journalists should check what a T-1
line is, rather than just saying "big data lines used by large
corporations."

Henrik Brameus

On Mon, Apr 21, 2008 at 8:28 AM, David Farber <dave () farber net> wrote:
> ________________________________________
> From: Bob Rosenberg [bob.redmountain () gmail com]
> Sent: Monday, April 21, 2008 5:18 AM
> To: David Farber
> Cc: Lauren Weinstein
> Subject: USA TODAY: Comcast opens up about how it manages traffic
>
> Dave
>
> Perhaps for I.P.
>
> Bob Rosenberg
>
>
>
> Comcast opens up about how it manages traffic
> By Leslie Cauley, USA TODAY
> Managing online traffic can be risky stuff. Just ask Comcast.
> http://www.usatoday.com/tech/products/services/2008-04-20-comcast-peer-to-peer_N.htm
>
> The cable TV giant came under fire recently when it slowed a "peer-to-peer" transmission of the King James Bible sent 
> as a test by an Associated Press reporter.
>
> At two special hearings held by the Federal Communications Commission — one at Harvard and another last week at 
> Stanford — the company was excoriated for delaying peer-to-peer traffic.
>
> Peer-to-peer transmissions, which account for more than half of all Web traffic, enable computers to snatch music, 
> data and video files from other computers. To assemble one file, a peer-to-peer service can tap into dozens, or even 
> hundreds, of computers around the world.
>
> Comcast (CMCSA)<http://stocks.usatoday.com/custom/usatoday-com/html-quote.asp?symb=cmcsa>, which has 13 million 
> online customers, has been taking a low profile. Executives Tony Werner, Comcast's chief technology officer, and 
> Mitch Bowling, senior vice president of online service, agreed to discuss the incident with USA TODAY.
>
> According to Werner, the transmission slowdown occurred automatically when network congestion started to build in the 
> Boston area, affecting other customers. The King James transmission, which was small, didn't cause the slowdown, he 
> says.
>
> Once traffic loads got too high, he says, Comcast's network automatically took steps to avoid further degradation. 
> The result: Some peer-to-peer traffic, including the AP transmission, got delayed. But it was never blocked, he says. 
> The transmission "showed up. It just took a little longer to get there."
>
> "The only reason you do something like that is to maintain consistent network performance," Werner says.
>
> At the FCC hearings, Comcast was criticized for throttling back peer-to-peer traffic as a network management 
> technique.
>
> "The technique is not unique to Comcast," says Comcast's Bowling.
>
> FCC Chairman Kevin Martin says Comcast should be specific about its bandwidth limitations. "Consumers have to be 
> informed about what they are buying," he says.
>
> Comcast service contracts say "excessive usage" is banned, but no cutoff point is specified. Bowling says there's a 
> good reason for that: "There isn't a specific limit."
>
> Bowling says Comcast considers incidents case-by-case. Only a handful of people fall into the "excessive user" 
> category, he says.
>
> Pressed to say how much bandwidth consumption is too much, Bowling offers this: People who use "the equivalent of two 
> T-1 lines" — big data lines used by large corporations.
>
> "I don't think anybody could look at that as typical residential usage," he says.
>
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MSN: hbrameus () hotmail com

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