RE: (SSIG) Taking the winning route
Dear all,
Let's take this discussion to SSIG reflector (ssig@xxxxxxxxxxx), where it
originated and made progress. It has spilled over into HSSG reflector by
mistake. The HSSG members have no context. We should strive to reduce the
world's confusion, not add to it. Thanks,
Vipul
========
> -----Original Message-----
> From: owner-stds-802-3-hssg@xxxxxxxx
> [mailto:owner-stds-802-3-hssg@xxxxxxxx]On Behalf Of Seto, Koichiro
> Sent: Sunday, April 09, 2000 10:12 PM
> To: avb@xxxxxxxxx; nuss@xxxxxxxxxx; pkolesar@xxxxxxxxxx
> Cc: stds-802-3-hssg@xxxxxxxx
> Subject: Re: (SSIG) Taking the winning route
>
>
>
> [Date: 04/09/2000 From Seto]
>
> I personally believe that the ability of using the same PCS for
> different PMAs
> promoted the success of 100BASE-X and 1000BASE-X. Both have the
> inexpensive
> PMA/PMD option. Also, notably, there were the same arguments
> whether we should
> require new infrastructure to customers when we tried to
> standardized 100BASE-TX on
> newly developed Cat.5 UTP cable. (But look at the world we are
> living in today!)
>
> I'm not saying that we don't need WWDM optics. But I would love to
> have a short-
> wave-length option for 64B/66B PCS.
>
> Seto
>
> >
> >
> > 850nm VCSELs for 10 GE require customers to deploy new high-bandwdith MMF.
> > I would recommend that PMD solutions are based on installed base
> MMF or SMF.
> >
> > Specifying a PMD that implies a brand new MMF infrastructure is not
> > consistent with the goal of using existing technology wherever possible.
> >
> >
> > ----- Begin Included Message -----
> >
> > >From nuss@xxxxxxxxxx Fri Apr 7 06:19:48 2000
> > Date: Fri, 07 Apr 2000 09:09:05 -0400
> > From: Martin Nuss <nuss@xxxxxxxxxx>
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> > CC: HSSG <stds-802-3-hssg@xxxxxxxx>
> > Subject: Re: (SSIG) Taking the winning route
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> >
> >
> > Of all the MM-fiber PMD proposals, only the 850nm serial VCSEL
> solution over the
> > new high-performance fibers has so far been shown to work under
> stressed systems
> > conditions, with Bit Error Rate measurements and careful analysis
> of the systems
> > impairments to support that, and working with VCSELs from many
> vendors. The
> > suggestions below are highly puzzling to me...
> >
> > Martin
> >
> >
> > Rich Taborek wrote:
> > >
> > > Vipul, Rob,
> > >
> > > It should be pointed out that a Serial 850nm solution only
> partially meets one
> > > HSSG distance/cable plant objective: 300m on MMF. However, this
> MMF must be the
> > > new, enhanced MMF. The Serial 850nmsolution addresses no SMF objectives
> > >
> > > WWDM meets all HSSG MMF objectives as well as SMF objectives to 10km.
> > >
> > > I agree with Vipul's choice of 3 PMDs as the best possible PMD
> set to address
> > > HSSG HSSG distance/cable plant objectives.
> > > Best Regards,
> > > Rich
> > >
> > > --
> > >
> > > Vipul Bhatt wrote:
> > > >
> > > > Rob,
> > > >
> > > > Rob Marsland wrote:
> > > > >
> > > > > Finally, I hate to be annoying, but this is the SERIAL sig.
> Since when is
> > > > > WWDM a serial solution?
> > > > >
> > > >
> > > > There is nothing annoying about your question. I should
> answer. I believe it
> > > > is in our (the Serial SIG's) best interest to rise above our
> Serial focus and
> > > > recognize that an "all Serial" set of solutions that meets
> all the distance
> > > > objectives is not something our customers are willing to sign
> up for. By
> > > > proposing a set of three solutions - two of which are Serial
> - I am proposing
> > > > a set that has the highest chance of being accepted by our
> customers and the
> > > > majority of 802.3ae members. I understand you disagree, and I
> respect your
> > > > opinion.
> > > >
> > > > Vipul
> > >
> > > -------------------------------------------------------
> > > Richard Taborek Sr. Phone: 408-845-6102
> > > Chief Technology Officer Cell: 408-832-3957
> > > nSerial Corporation Fax: 408-845-6114
> > > 2500-5 Augustine Dr. mailto:rtaborek@xxxxxxxxxxx
> > > Santa Clara, CA 95054 http://www.nSerial.com
> >
> >
> >
> > ----- End Included Message -----
> >
> >
>