|Thread Links||Date Links|
|Thread Prev||Thread Next||Thread Index||Date Prev||Date Next||Date Index|
I'm going to raise a point of concern here so that the copper ad hoc can give it some thought over the weekend, and then address my concern as they see fit.
My concern is the possible baggage that might come with the horizontal cabling objective. My concern with the horizontal cabling is that given the developments at the end of the 802.3ab standard, there are probably a lot more IEEE members that would require a definitive proof of technical feasibility before this could be made into a standard. I'm not so sure we want to tie the rest of the 10GbE development to that type of boat anchor.
This is just meant as food-for-thought as we move forward, and I want to make sure that the ad hoc has given consideration to this concern.
Level One Communications, Austin Design Center
(512) 407-2135 office
(512) 589-4438 cellular
From: Rich Taborek [SMTP:rtaborek@xxxxxxxxxxxxxxxx]
Sent: Friday, July 02, 1999 4:15 PM
To: Jonathan Thatcher; HSSG
Subject: Re: Distance objective <-> Install base objective
The HSSG copper ad hoc has proposes the following strawman:
The copper ad hoc membership (those who raised their hands in Idaho) support
the following objectives for higher speed copper.
Equipment room - short copper @10 gb/s minimum length of 10 meters.
Horizontal Cabling - long copper @ a minimum of 2.5 gb/s on a minimum
length of 100 meters of category 6 cabling.
Those familiar with ISO/IEC 11801 understand that it covers UTP. Clarification
(a) in My proposed motion further states: 100 m for horizontal cabling. This
distance objective is then met by any media, including UTP, STP, MMF, SMF, etc.
that can attain or exceed this distance. The is written specifically to get us
going on a standards project which does not exclude any reasonable PMD variant
to support 10 GbE. This HSSG distance motion is intentionally written to be
orthogonal to the HSSG speed issue in order to resolve these two religious
issues in the most expeditious manner.