[Sis-dtn] RE: DTPC RID against BP-for-CCSDS

Fri Oct 17 14:07:08 UTC 2014

Keith,

Will we be collecting the applications in a single book?

Lee

From: Felix.Flentge at esa.int [mailto:Felix.Flentge at esa.int]
Sent: Friday, October 17, 2014 9:06 AM
To: Scott, Keith L.
Cc: Chris Taylor (chris.taylor at esa.int); Pitts, Robert L. (MSFC-EO50)[HOSC SERVICES CONTRACT]; sis-dtn at mailman.ccsds.org
Subject: Re: DTPC RID against BP-for-CCSDS

Dear Keith,

fine for me. I have been assuming that there are some practical reasons to have it in the BP book and I am happy to hear that there is also an implementation in DTN2.

Regards,
Felix
--
Dr. Felix Flentge
ESA/ESOC - European Space Agency / European Space Operations Centre
Human Spaceflight and Operations, Ground Segment Engineering Department, HSO-GIB
ESA/ESOC, Robert-Bosch-Strasse 5, D-64293 Darmstadt, Germany
Tel: +49 6151 90 3173
e-mail: Felix.Flentge at esa.int<mailto:Felix.Flentge at esa.int>

From:        "Scott, Keith L." <kscott at mitre.org<mailto:kscott at mitre.org>>
To:        "felix.flentge at esa.int<mailto:felix.flentge at esa.int>" <felix.flentge at esa.int<mailto:felix.flentge at esa.int>>,
Cc:        "Chris Taylor (chris.taylor at esa.int<mailto:chris.taylor at esa.int>)" <chris.taylor at esa.int<mailto:chris.taylor at esa.int>>, "Pitts, Robert L. (MSFC-EO50)[HOSC SERVICES CONTRACT]" <robert.l.pitts at nasa.gov<mailto:robert.l.pitts at nasa.gov>>, "sis-dtn at mailman.ccsds.org<mailto:sis-dtn at mailman.ccsds.org>" <sis-dtn at mailman.ccsds.org<mailto:sis-dtn at mailman.ccsds.org>>
Date:        17/10/2014 15:26
Subject:        DTPC RID against BP-for-CCSDS
________________________________

Felix,

First, thanks very much for your review and RIDS on the BP-for-CCSDS book.  I think they've improved the book's overall quality.

Regarding your RID against the Delay-Tolerant Payload Conditioning Specification:
I am wondering if  "Annex E Delay-Tolerant Payload Conditioning Specification" should not be a separate document. For me it is a specific way (an "application service") of how to apply BP and does not need to be part of the CCSDS BP Standard. Also, I am not sure about the maturity of that protocol (Has it been tested with two independent implementations?). So, it might be better to separate it (maybe as a Magenta Book) and have "independent lifecycles".

I think the WG's current leaning is to reject the RID and keep the DTPC annex in the book.  I would concur that in a perfect world it would be split off as a separate book, but as I recall the capability was strongly desired and there was some concern about '# of books explosion' and the agency review resources that would be needed if it were done separately.  Also, removing the annex now would require another agency review.

There are two implementations of DTPC (ION and DTN2), and since it's a normative part of the book it WILL be interoperability tested before the book goes Blue.

Given the above, I think the WG would like to reject the RID and keep DTPC in the current book.  Would you be able to concur with this?

                        Best Regards,

                                    --keith

Dr. Keith Scott                                                                                           Office: +1.703.983.6547
Chief Engineer, J86A                                                                               Fax:      +1.703.983.7142
Communications Network Engineering & Analysis                     Email: kscott at mitre.org<mailto:kscott at mitre.org>
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