Re: 10 GbE en MASse PMD, Historically...
Rich-
I fully agree with your assessment on 802.3ab.
I am eagerly awaiting broad availability in the marketplace so we can see
if we have another winner.
I sure hope so!
Geoff
At 11:37 AM 11/19/99 -0800, 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@nortelnetworks.com |
>> | 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@earthlink.net
>
>
>
|=========================================|
| 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@nortelnetworks.com |
| Please see the IEEE 802.3 web page at |
http://grouper.ieee.org/groups/802/3/index.html