quick question: scalable tcp is very well know to be an example of unstable protocol.<br>f.i. if you try to use in a scenario as simple as 3 connections sharing a bottlelenck you will get extreme unfairness, even more.. you will get one connection getting all bandwidth and the others completely starved.<br>
<br>f.i., is this behaviour coming out from your models?<br><br>thanks,<br>saverio<br><br><br><div class="gmail_quote">On Tue, Mar 3, 2009 at 8:30 PM, Kevin Mills <span dir="ltr"><<a href="mailto:kmills@nist.gov" target="_blank">kmills@nist.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Some colleagues and I at NIST are applying mathematical and<br>
statistical methods, used by physical scientists, with am aim to<br>
understand and predict behavior in complex information systems, such<br>
as data communications networks and computational grids. As one<br>
challenge problem we are studying the network-wide implications of<br>
replacing TCP congestion control with one of six proposed alternatives<br>
(BIC, CTCP, FAST, HSTCP, HTCP and Scalable TCP). We have completed<br>
half of the study, which you can find in draft form<br>
on-line at the following URL: <a href="http://www.antd.nist.gov/%7Emills/DraftStudy.pdf" target="_blank">http://www.antd.nist.gov/~mills/DraftStudy.pdf</a>.<br>
<br>
There also is a powerpoint presentation that covers some of the theory<br>
underlying our approach<br>
(<a href="http://www.antd.nist.gov/%7Emills/presentations/IMSComplexSystems2008v12.pdf" target="_blank">http://www.antd.nist.gov/~mills/presentations/IMSComplexSystems2008v12.pdf</a>).<br>
<br>
If you think you might be interested in reviewing and commenting on our work,<br>
then please do.<br>
<br>
Should the research group wish to learn more about our work, then we could<br>
probably arrange a presentation at one of your future meetings.<br>
<br>
Thanks for taking the time to read this post.<br>
<br>
Kevin Mills<br>
<br>
NIST<br>
100 Bureau Drive Stop 8920<br>
Bldg. 222/B218<br>
Gaithersburg, MD 20899-8920<br>
<br>
Tel: (301) 975-3618<br>
Fax: (301) 975-6238<br>
email: <a href="mailto:kmills@nist.gov" target="_blank">kmills@nist.gov</a><br>
web: <a href="http://w3.antd.nist.gov/%7Emills" target="_blank">http://w3.antd.nist.gov/~mills</a><br>
<br>
<br>
<br>
<br>
_______________________________________________<br>
Iccrg mailing list<br>
<a href="mailto:Iccrg@cs.ucl.ac.uk" target="_blank">Iccrg@cs.ucl.ac.uk</a><br>
<a href="http://oakham.cs.ucl.ac.uk/mailman/listinfo/iccrg" target="_blank">http://oakham.cs.ucl.ac.uk/mailman/listinfo/iccrg</a><br>
</blockquote></div><br><br clear="all"><br>-- <br>Prof. Saverio Mascolo<br>Dipartimento di Elettrotecnica ed Elettronica<br>Politecnico di Bari<br>Via Orabona 4<br>70125 Bari <br>Italy<br>Tel. +39 080 5963621<br>Fax. +39 080 5963410<br>
<a href="mailto:email%3Amascolo@poliba.it" target="_blank">email:mascolo@poliba.it</a><br> <br><a href="http://c3lab.poliba.it" target="_blank">http://c3lab.poliba.it</a><br><br><br>=================================<br> This message may contain confidential and/or legally privileged information.<br>
If you are not the intended recipient of the message, please destroy it.<br> Any unauthorized dissemination, distribution, or copying of the material in<br> this message, and any attachments to the message, is strictly forbidden.<br>