Re: 10 GbE en MASse PMD, Historically...
Jonathan Thatcher:
Did you move the WG Ballot to March 2000 ?
By the way that people keep Rich busy it would seem that all the
data and development regarding all the PHY proposals has been
completed and the only thing left is give the final judgment and
vote for the clear winner ...
Jaime
Jaime E. Kardontchik, Ph.D.
Micro Linear
San Jose, CA 95131
email: kardontchik.jaime@xxxxxxxxxxx
Rich Taborek wrote:
> Geoff,
>
> I stand corrected. I knew this statement wasn't exactly correct, but I decided
> to spare myself the research at 2:00 AM this morning and finish the note.
> Thanks for your update.
>
> I also agree on your 1000BASE-T opinion. However, it is important to note that
> there were multiple (5?) new modulation and signaling proposals aired early in
> 1000BASE-T. I don't recall if any of them were all that firmly rooted in
> existing standards or products. With due respect to all 802.3ab committee
> members, this was a heck of an engineering effort, a leveraging of sound
> technologies, and clearly an effort endorsed by many 802 professionals.
>
> Best regards,
> Rich
>
> --
>
> Geoff Thompson wrote:
>
> > Rich-
> >
> > 100BASE-TX was not a case of "engineered brand new technology"
> >
> > We stole it fair and square from FDDI (TP-PMD). Perhaps you were thinking
> > of 100BASE-T4 or 100BASE-T2 both of which were new technology but didn't
> > make it in the market.
> >
> > You could argue 10BASE-T either way. There was extensive proprietary
> > product out there (LattisNet-UTP) and the group had already done work on 1
> > Mb/s StarLAN (1BASE5) but the signaling was a new design, the last one that
> > we have done that was a success. The jury is still out on 1000BASE-T.
> >
> > At 02:51 AM 11/19/99 -0800, Rich Taborek wrote:
> > ........
> > >> 1. Historically, Ethernet has utilized the optical
> > >> technologies developed by at least several companies
> > >> with some key fielded product.
> > >
> > >That may well be true for Ethernet, but only because all Ethernet optical
> > >technologies to date have been leveraged from other standards. In other
> > instances,
> > >such as 100BASE-TX and 1000BASE-T, 802 has engineered brand new
> > technologies to
> > >field a standard. History and tradition are all well and fine, but
> > certainly not
> > >the rule for Ethernet. Note also that WWDM is a new technology, not
> > fielded in
> > >general, and certainly not by many companies.
> >
> > Happy Thanksgiving,
> >
> > Geoff
> > |=========================================|
> > | Geoffrey O. Thompson |
> > | Chair IEEE 802.3 |
> > | Nortel Networks, Inc. M/S SC5-02 |
> > | 4401 Great America Parkway |
> > | P. O. Box 58185 |
> > | Santa Clara, CA 95052-8185 USA |
> > | Phone: +1 408 495 1339 |
> > | Fax: +1 408 988 5525 |
> > | E-Mail: gthompso@xxxxxxxxxxxxxxxxxx |
> > | Please see the IEEE 802.3 web page at |
> > http://grouper.ieee.org/groups/802/3/index.html
>
> ----------------------------------------------------------
>
> Richard Taborek Sr. 1441 Walnut Dr. Campbell, CA 95008 USA
> Tel: 408-370-9233 Cell: 408-832-3957 Fax: 408-374-3645
> Email: rtaborek@xxxxxxxxxxxxx