I think the issue is one of
volumes.
Lacking data, I am getting the impression that the 100m
is actually an expensive sedan and 150m is a luxury
SUV.
Perhaps you can provide a chart that shows the
distribution of lengths and the relative costs associated with them, and we
can use that as the basis for further understanding? I know that this data has
been presented in various presentations, but a nice succinct chart would be
helpful.
Dan
Geoff,
You know me - I like analogies; I seem to remember using
airplanes as an example during the development of 10GbE, something like
comparing 747s to regional jets. I also like automobiles so let give you my
take on where we are at as it relates to 802.3ba.
I agree that the bulk of automobile product line only has
5 passenger capacity. However, how many cars will you see this morning on the
way to work will have five people in them? Very few - most will have one and
some will have two. Using the 802.3ba philosophy, we would standardize a
two-seater since that is what the majority of the market needs. We would
ignore the typical sedan which gives broader market coverage at maybe, just
maybe a small premium. I view the XR variant as the typical
sedan.
We have an objective for Scooters - 10m of copper - just
get me from here to there at the lowest cost
We have an objective for a Smart car - 100m of MMF - good
enough for most commuters
We have an objective for a Greyhound bus - 10km of
SMF
We have an objective for a turbo-charged Greyhound
bus (or a John Madden luxury liner or a 747) - 40km of
SMF)
But we have ignored the family sedan that provides
broader coverage at a reasonable cost. Our argument is that it is not large
enough or doesn't warrant the extra cost. I see 10-20% of a lot of ports as
much, much bigger than 100% of hardly any ports (albeit expensive ones). I
don't hear anyone talking about how small the 40km SMF market
is.
I still don't get it.
Best regards,
Steve
At 06:35 PM 8/25/2008 , Swanson, Steven E wrote:
What should we tell our customers who have
link lengths longer than 100m and want (or require) a standardized
solution?