Fwd: [Iccrg] MulTFRC update

[Michael Welzl]

Hi,

FYI, feedback from one of the reviewers. He agreed to have this  
forwarded to the list.

Cheers,
Michael


Begin forwarded message:

> From: Dirceu Cavendish <dirceu_cavendish at yahoo.com>
> Date: July 6, 2010 4:27:14 PM GMT+02:00
> To: Michael Welzl <michawe at ifi.uio.no>
> Subject: Re: [Iccrg] MulTFRC update
>
> Thanks for addressing the issues raised in the review process,  
> Michael - some of which I have authored. You have my support to  
> going forward...
>
> Rgds,
> Dirceu
>
>
>
>
> From: Michael Welzl <michawe at ifi.uio.no>
> To: "iccrg at cs.ucl.ac.uk list" <iccrg at cs.ucl.ac.uk>
> Sent: Tue, July 6, 2010 2:29:22 AM
> Subject: [Iccrg] MulTFRC update
>
> Hello,
>
> We submitted an update of our MulTFRC draft, in which we tried to  
> address the
> comments that we have received. After it was presented to DCCP, and  
> there,
> it was said that ICCRG would be a better place for the draft, it is  
> now called
> draft-irtf-iccrg-multfrc-00.txt.
> http://tools.ietf.org/html/draft-irtf-iccrg-multfrc-00.txt
>
> The majority of the comments revolved around the possible problems  
> with
> implementing our equation; we have addressed this by including an  
> appendix
> in which it is discussed that our algorithm provided for this  
> calculation will
> not give underflow, overflow or rounding errors that will adversely  
> affect the
> result of the algorithm.
>
> On our MulTFRC page:
> http://heim.ifi.uio.no/~michawe/research/projects/multfrc/index.html
>
> You will now also find two very small Java programs on this page,
> which implement the TFRC and MulTFRC equations with a GUI, as
> an easy means to test input / output values and obtain reference  
> values
> for validating an implementation.
>
> Lachlan commented that the MulTFRC doesn't scale with the  
> bandwidth*delay
> product, which we addressed with a new paragraph under "usage  
> considerations",
> where we document this fact and explain that, for this reason, it is  
> not
> recommended to use MulTFRC as a fix to the problem of saturating very
> large bandwidth*delay product paths.
>
> It was also requested to have a reference which includes the  
> equation's
> derivation. MulTFRC was developed by Dragana Damjanovic in her Ph.D.  
> thesis,
> which is now finished, and available from our MulTFRC page. This  
> document
> includes the derivation of the equation and quite many results:
> - validations of the equation using simulations and real-life  
> measurements
> - MulTFRC tests using simulations and real-life measurements
>
> One small mistake that happened to me just now is that I forgot to  
> explicitly
> reference this document in the draft; sorry, I will fix this in the  
> next update.
>
> I intend to present this update at the upcoming ICCRG meeting.
> Any comments are welcome!
>
> Cheers,
> Michael
>
>
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>

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