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I agree with Dan. Especially, the economic
feasibility and distinct identity of 40GE have not yet been demonstrated. Assuming 100GE will proceed, I am not
convinced on the broad market potential of 40GE either. Alternative technology
is suffiient to cover the low volume need before 2012, and by then, 100GE will
have already taken off to meet the market demand as perceived by the 40GE. Wenbin Jiang JDSU Transmission Module BU From: Folks, I committed to offering up my perspective
on what has not been done (and should be done) in order to proceed
with a 40G PAR in the July timeframe. This list is subject to review,
consideration, and revision if I have either missed something or included
something that does not belong. Some of the determinations made are subjective,
and you may disagree with my conclusion. This is also worthy of discussion and
resolution via concensus. I have run it by people on both sides of the
discussion and made amendments per their feedback. If you have additional
feedback, please recognize that I am trying to be fair and willing to
consider your feedback. When it is all said and done, this
is *my* list and not the HSSG's list. If the HSSG does not agree with me,
then I will gladly accept the consensus of the group. I based this on the
history of presentations and motions made in the HSSG and my experience working
in 802.3 over the last 20+ years. There is no defined roadmap, but I think
it should help us to reach an agreement on how to proceed. I should mention that when I
say "Not Done" relative to a motion, this means "not made and
passed by a necessary majority". Motion to add 40G to HSSG
Objectives (Not Done) Demonstration of Broad
Market Potential (Done) Motion that HSSG has
demonstrated 40G Broad Market Potential (Not Done) Demonstration of
Technical Feasibility (Done) Motion that HSSG has
demonstrated 40G Technical Feasibility (Not Done) Demonstration of Economic
Feasibility (Not Done) -- 40G cost/performance vs 4x10G LAG cost/performance
(Incomplete) -- I
believe a good presentation on this subject would show the relative performance
of 40G to 4x10G LAG in quantitative terms. The latency comparison
was a start, but please show how this translates to protocol/system
performance. I believe we need to see a substantial performance benefit given
the cost differential is minimal. Motion that HSSG has
demonstrated 40G Economic Feasibility (Not Done) Demonstration of Distinct
Identity (Not Done) -- Show why the 2.5X
cost/performance difference justifies a project. -- 40G functionally distinct from 4x10G LAG? (Done) -- How will the HSSG address 40G 10Km and 40Km links and would their addition undermine distinct
identity? (Not Done) -- HSSG
position on OTN rate and WAN PMD (Not Done) Motion that HSSG has
demonstrated 40G Distinct Identity (Not Done) Motion to Adopt 40G PAR
proposal (Not Done) Motion to Adopt
compatibility criterion proposal (Not Done) Motion to Adopt
distinct identity criterion proposal (Not Done) Motion
to Adopttechnical feasibility criterion proposal (Not Done) Motion to Adopt
economic feasibility criterion proposal (Not Done) Motion to Adopt broad
market criterion proposal (Not Done) I hope at a minimum that this
clarifies my concern in If there are any remaining items to
be completed to forward a 100G PAR, please respond with your input as we should
try to get both proposals ready to forward
for the July meeting. Since the March meeting , I see no additional
work required beyond the formal motions needed to forward the
PAR.
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