Re: [re-ECN] FW: New Version Notification for draft-moncaster-congestion-exposure-problem-02

Hi Mirja,

I agree that it is starting to get a bit long - that tends to be the way with documents like this where multiple people are contributing text.

Realistically I am not going to be able to do a major revision today before the deadline, however I will try and incorporate your text into the use cases section so we have something for people to start to discuss.

Thanks,

Toby

> -----Original Message-----
> From: Mirja Kuehlewind [mailto:mirja.kuehlewind@ikr.uni-stuttgart.de]
> Sent: 24 October 2009 18:58
> To: re-ecn@ietf.org
> Cc: Moncaster,T,Toby,DEE1 R
> Subject: Re: [re-ECN] FW: New Version Notification for draft-moncaster-
> congestion-exposure-problem-02
> 
> Hi,
> 
> I think the problem statement should be shorten a little as a lot of
> things
> are mentioned twice and the introduction doesn't come clearly to the
> point.
> Not sure if someone not involved into the re-ECN activity will be able
> to
> grab the problem in some simple sentences after reading this.
> Generally, I think it is really good readable, so simply shorten it
> might
> help...?
> 
> Here is some input from my side for the use cases. Not sure if that is
> what is
> was intended to be, but at least it's some input:
> 
> "Congestion exposure can enable ISPs to give an incentive to end-
> systems to
> response to congestion in a way that leads to a better share of the
> available
> capacity. For example the introduction of a per-user congestion volume
> might
> motivate "heavy-user" to back off with their high-bandwidth traffic
> (when
> congestion occurs) to save their congestion volume for more time-
> critical
> traffic. If every end-system reacts to congestion in such a way that it
> avoids congestion for non-critical traffic and allow a certain level of
> congestion for the more important traffic (from the user's point of
> view),
> the all-over user experience will be increased. More-over the network
> might
> be utilized more equally when less-important traffic is shifted to less
> congested time slots."
> 
> Mirja
> 
> 
> On Friday 23 October 2009 15:09:30 toby.moncaster@bt.com wrote:
> > I have posted an updated version taking into account comments I
> received
> > over the past week or so. Apologies if I have missed any comments.
> >
> > http://www.ietf.org/id/draft-moncaster-congestion-exposure-problem-
> 02.txt
> >
> > The big missing pieces still are: use cases (I have added a couple of
> > sentences suggesting what the end result should look like) and
> security
> > (which Bob is hoping to be able to do - meanwhile I added some rough
> notes
> > that I hope are a start).
> >
> > If anyone has anything to contribute before the ID deadline on Monday
> let
> > me have it by 1200 GMT Monday and I will endeavour to add it...
> >
> > Toby
> >
> > ____________________________________________________________________
> > Toby Moncaster, Senior Researcher, Network Infrastructure Practice
> > B54/70 Adastral Park, Ipswich, IP53RE, UK.  +44 7918 901170
> >
> >
> >
> > -----Original Message-----
> > From: IETF I-D Submission Tool [mailto:idsubmission@ietf.org]
> > Sent: 23 October 2009 13:30
> > To: Moncaster,T,Toby,DEE1 R
> > Cc: Krug,AL,Louise,DES3 R; menth@informatik.uni-wuerzburg.de;
> > j.araujo@ee.ucl.ac.uk; sblake@extremenetworks.com;
> > richard_woundy@cable.comcast.com Subject: New Version Notification
> for
> > draft-moncaster-congestion-exposure-problem-02
> >
> >
> > A new version of I-D, draft-moncaster-congestion-exposure-problem-
> 02.txt
> > has been successfuly submitted by T Moncaster and posted to the IETF
> > repository.
> >
> > Filename:	 draft-moncaster-congestion-exposure-problem
> > Revision:	 02
> > Title:		 The Need for Congestion Exposure in the Internet
> > Creation_date:	 2009-10-23
> > WG ID:		 Independent Submission
> > Number_of_pages: 19
> >
> > Abstract:
> > The success of the Internet is largely down to the ability to share
> > capacity amongst all users while avoiding congestion collapse.
> > However this relies on the cooperation of all end users to work
> > efficiently - even if everyone uses TCP, a minority of users can
> > command a large share of the network.  To mitigate the growth in this
> > problem over recent years, some ISPs have imposed various controls on
> > traffic using a range of proprietary approaches.  These controls set
> > ISPs in conflict with their customers and with some regulators.
> >
> > The root of the problem lies in the fact the ISPs are unable to see
> > the most important information about the traffic - namely the amount
> > of congestion that traffic is going to cause in the network.  We
> > propose congestion exposure as a possible solution.  This allows
> > packets to carry an accurate prediction of the congestion they expect
> > to cause downstream.  This memo sets out the motivations for
> > congestion exposure and introduces a strawman protocol designed to
> > achieve congestion exposure.
> >
> >
> >
> > The IETF Secretariat.
> >
> >
> > _______________________________________________
> > re-ECN mailing list
> > re-ECN@ietf.org
> > https://www.ietf.org/mailman/listinfo/re-ecn
> 
> 
> 
> --
> -------------------------------------------------------------------
> Dipl.-Ing. Mirja Kühlewind
> Institute of Communication Networks and Computer Engineering (IKR)
> University of Stuttgart, Germany
> Pfaffenwaldring 47, D-70569 Stuttgart
> 
> web: www.ikr.uni-stuttgart.de
> email: mirja.kuehlewind@ikr.uni-stuttgart.de
> tel: +49(0)711/685-67973
> -------------------------------------------------------------------