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Not having e-mail since Thursday, I was able to read this thread
back-to-back. <br>
35 e-mails and 25 minutes later, I'm not sure what the original question
was, what the answer was, or where we are right now.<br>
My background, for those of you who don't know me, is Flight
software. I've worked many many years/missions, side-by-side with
Project Mgrs, system engineers, hardware engineers, ops folks, etc.,
sometimes 24/7, building and launching spacecraft. I've had to
convince PMs and engineers why "this is the best way"
(including an onboard IP network for GPM). I do not have the depth
of expertise on network and IP protocols, etc., that most of you
do. Nor do I have any religious preference for IP or CCSDS.
Given that, if we want to produce something that may actually
"fly" or "be accepted", my feeling for this WG is
that we should get back to the types of discussions we had in Colorado
Springs. That is, what are the issues within the operational
Cis-lunar scenarios that need to be resolved? What are the protocol
profiles? What are the solutions and are they realistic and
palatable to PMs or systems engineers, or today's ops personnel?
Base it on technical merit, which may have <i>different solutions for
different scenario</i>s. Do prototyping that supports the technical
merit. And START SIMPLY, because when it comes down to it, no PM
that I know of will take the risk of implementing something that poses
high risk or high cost to their mission. Their hides will be in the
canner. Yes we need to be aware of a migration path, and future
needs, but let's not get stuck in a long-term debate when we haven't even
gotten out of the batter's box. As an international WG, we should
concentrate on analyzing the proposed (Cx) and existing (IP, IETF, CCSDS)
networking protocols and figure out how the issues may be resolved where
more than a single mission/program can benefit. Cx is looking out
for Cx, ESA concentrates on ESA, other NASA missions may look for single
solutions. Its understandable. The hardest part of standards
work is finding agreement across different interests, but isn't that our
goal? Finding solutions for CisLunar that might support the
majority?<br><br>
Just my 2 cents.....<br><br>
Jane</body>
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