Is this reflector still going??
I believe the reason we did not pull >75% of the vote for an objective
at Montreal may be that we did not provide a sufficient argument for
market demand, application space, and feasibility.
I appreciate the work presented, and believe that feasibility has been
reduced as an issue, but to really nail this one, it would be nice if we
were to come up with more consensus internally prior to presenting to the
We still have a chance to get this objective approved if we do the
1) Gather 1000BASE-CX shipment numbers from cable suppliers and prove
that stacking & top-of-stack solutions will use copper.
2) Obtain customer testimonials declaring the value of a low-cost copper
alternative.. I believe I can get some of these.
3) Demonstrate network designs that take advantage of a low-cost copper
link... I can do this too.
4) Come up with a SINGLE approach that provides low-cost connectorization,
cabling, and silicon and present each of those elements to HSSG.
Its my opinion that the optimum solution may be somewhere between the HP
4-up/4-down proposal and the Transcendata 1-up/1-down proposal that uses
I am wondering if a 2-up/2-down scheme with 8B10B, scrambling, and
multi-level (or bandwidth efficient 2-level) signaling may be sufficient to
do the job. Is anyone willing to consider that and perform some analysis?
If we want a short-haul copper objective, we will have to nail it down by
September to get it into the HSSG study group, otherwise, we will have to
develop a separate study group, PAR, etc which will slow it down and make it
much more difficult to complete in a timely manner.
_________ _/ ___________ Daniel Dove Principal Engineer __
_______ _/ ________ dan_dove@xxxxxx LAN PHY Technology __
_____ _/ ______ Hewlett-Packard Company __
____ _/_/_/ _/_/_/ _____ Workgroup Networks Division __
____ _/ _/ _/ _/ _____ 8000 Foothills Blvd. MS 5555 __
_____ _/ _/ _/_/_/ ______ Roseville, CA 95747-5555 __
______ _/ ________ Phone: 916 785 4187 __
_______ _/ _________ Fax : 916 785 1815 __
__________ _/ __________________________________________________________