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Re: [EFM] Network timing, ATM, ADSL/VDSL and EFM


Like everyone else, I have been beset with management priority issues 
questions of vendor NDAs.   I am working toward getting some of this 
information "massaged" in such a way that it can be "released".  You would 
not believe the "hoops" that I had "jump" through to get my white paper to 
Generic Data Communications Services Models released. At present, the best 
that I can do is "generalize" some of the knowledge that has been gained by 
this work.

Thank you,
Roy Bynum

At 07:45 AM 10/1/01 -0400, Fletcher E Kittredge wrote:
>On Fri, 28 Sep 2001 16:39:11 -0500  Roy Bynum wrote:
> > Part of the work that I have been doing in a lab for the last two years to
> > characterize Ethernet transmission functionalities.  One of the surprising
> > things was how stable Ethernet inherently is.  Non-routing, switched GbE
> > Ethernet will often have a worst case data latency variance of a few
> > microseconds.  The end to end latency is more a factor of speed of light
> > latency than system latency.  This is several factors better than what is
> > normally expected of standard IP infrastructure.  Other than something to
> > handle "circuit" overloading, Ethernet does not normally need QOS.
>Sounds like you are doing interesting and important work.  I would
>love to explore in more detail.  Has it been published and if so,
>could you be so kind as to give me some citations?