Re: [conex] ConEx as sender side only modification

Hi Ingemar,

yes there are only sender-side modification needed. If you only have 
the 'classic' ECN, you will only be able to get (at max) one congestion 
notification per RTT. If there is more than one CE marking per RTT you will 
underestimate the congestion.

Mirja

On Monday 14 November 2011 11:16:04 Ingemar Johansson S wrote:
> Hi
>
> Have not been able to follow the ConEx list in detail but reading
> http://tools.ietf.org/id/draft-briscoe-conex-initial-deploy-00.txt
> I can see that received side modifications are optional.
> This is of course interesting at least if consinder the normal server
> client architecture as it is easier to modify a million servers than a
> zillion clients. Assuming that I read right...
> How does it work with TCP, I know TCP modifications have been considered to
> make TCP echo back the exact correct number of ECN-CE to the server. Does
> this then mean that a TCP flow (unmodified TCP) will state a higher
> congestion level in the dest-opts than the actual ?
>
> /Ingemar
>
> =================================
> INGEMAR JOHANSSON  M.Sc.
> Senior Researcher
>
> Ericsson AB
> Wireless Access Networks
> Labratoriegränd 11
> 971 28, Luleå, Sweden
> Phone +46-1071 43042
> SMS/MMS +46-73 078 3289
> ingemar.s.johansson@ericsson.com
> www.ericsson.com
> =================================
> _______________________________________________
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Dipl.-Ing. Mirja Kühlewind
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