<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7653.38">
<TITLE>RE: [e2e] Protocols breaking the end-to-end argument</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/plain format -->
<P><FONT SIZE=2>Hey, I wrote a chapter of that book...<BR>
<BR>
Do look into the Bundle Protocol, which ignore the end-to-end<BR>
principle and control loops in its design. See our 'Bundle of<BR>
Problems' paper for more on this:<BR>
<A HREF="http://www.ee.surrey.ac.uk/Personal/L.Wood/publications/">http://www.ee.surrey.ac.uk/Personal/L.Wood/publications/</A><BR>
The Bundle Protocol has similar problems/oversights as LTP-T.<BR>
<BR>
Carlo Caini's group has drawn parallels between<BR>
DTN work and TCP PEPs, pointing out that what TCP PEPs do<BR>
on the quiet (break the end-to-end control loop into separate<BR>
loops) is what things like bundle hops + convergence layers<BR>
or http proxy caches do more explicitly and visibly. See e.g.<BR>
his IWSSC'09 paper:<BR>
"TCP, PEP and DTN Performance on Disruptive Satellite Channels."<BR>
<BR>
L.<BR>
<BR>
<<A HREF="http://www.ee.surrey.ac.uk/Personal/L.Wood/">http://www.ee.surrey.ac.uk/Personal/L.Wood/</A>><L.Wood@surrey.ac.uk><BR>
<BR>
<BR>
<BR>
-----Original Message-----<BR>
From: end2end-interest-bounces@postel.org on behalf of Jaime Mateos<BR>
Sent: Fri 2009-10-23 11:26<BR>
To: end2end-interest@postel.org<BR>
Subject: [e2e] Protocols breaking the end-to-end argument<BR>
<BR>
Hi,<BR>
I'm working on a project about the current challenges the Internet is<BR>
presenting to the end-to-end argument. I'd be interested to know about<BR>
any protocols, currently in use, that break the end-to-end principle and<BR>
the context where they are used. So far the only one I've found is TCP<BR>
PEP that seems to be in use in satellite networks (Internetworking and<BR>
computing over satellite networks, Yongguang Zhang -<BR>
http://books.google.ie/books?id=3pkI6OWUsRAC&pg=PA170&lpg=PA170&dq=criticisms+of+end+to+end+principle&source=bl&ots=OVbMYc5Iso&sig=Tir1Xi4vxRG5HG2ieGCgl2STWcA&hl=en&ei=vL7TSor9Bs2z4QbW8_H_Ag&sa=X&oi=book_result&ct=result&resnum=5&ved=0CBQQ6AEwBA#v=onepage&q=criticisms%20of%20end%20to%20end%20principle&f=false)<BR>
<BR>
<BR>
There also seems to be a number of research projects such as Split TCP<BR>
and LTP-T that I've come across. I'm also interested in these but not to<BR>
the same degree as in protocols that are currently in use today.<BR>
<BR>
Thanks,<BR>
Jaime Mateos<BR>
<BR>
<BR>
</FONT>
</P>
</BODY>
</HTML>