[SIS-CFDPV1] CFDP B6 Standard - Working Group Last Call / CCSDS Spring Meeting

[Felix Flentge]

Dear CFDP Working Group,

I would like to initiate a Working Group Last Call for the CFDP B6 standard we have discussed in the past meetings.

The final draft is available with and without track changes wrt to B5 in CWE:

CCSDS File Delivery Protocol_TRACK_CHANGES_B5.docx<https://spacecomm.sharepoint.com/:w:/r/sites/SIS/Shared%20Documents/SIS-CFDPV1/Draft%20Documents/727x0b6_WhiteBook/CCSDS%20File%20Delivery%20Protocol_TRACK_CHANGES_B5.docx?d=w1f0c1aaabbfb4d6caa5cedfa02f62a49&csf=1&web=1&e=aEXxUd>

727x0b6_WhiteBook_March_2026_CLEAN.doc<https://spacecomm.sharepoint.com/:w:/r/sites/SIS/Shared%20Documents/SIS-CFDPV1/Draft%20Documents/727x0b6_WhiteBook/727x0b6_WhiteBook_March_2026_CLEAN.doc?d=w8536caec37314fa8a7e248ce89cd93ef&csf=1&web=1&e=Sl6tkf>

The change record contains a summary of the major changes. However, editorial changes have been applied across the document, so I would recommend to review the version with track changes. Please note that there are still some minor formatting issues across the document which I haven't been able to resolve completely (this will be done later by the CCSDS Tech Editors).

Please let me have any comments, concerns or specific change requests you may have until 20 April.

At that time, I will gather all feedback received from the WG and determine whether we will need a dedicated discussion. If not, I will ask Tomaso to initiate agency review.

Regarding a meeting of the CFDP WG during the CCSDS Spring Technical Meetings: I assume I will be very busy with the DTN WG meetings but I could arrange for a CFDP WG Meeting on Thursday, 28 May, 15:30-17:30 local time (Puerto Rico, should be19:30 - 21:30 UTC). However, I assume that not many CFDP WG participants will travel to the CCSDS meetings, so I would prefer to not organise a CFDP meeting during that week unless many CFDP WG members are present and wishing to meet. Otherwise, I will just call for a remote meeting some other time (either before the Spring Meetings if we have to discuss the B6 Final Draft or after we got agency feedback or want to discuss interoperability testing). So, could you please let me know (until 20 April):


  1.  If you are interested in a CFDP WG meeting during the CCSDS Spring Technical Meetings (Thursday, 28 May, 15:30-17:30 local time) and whether you would be able to join in person?
  2.  If you are interested in participating in the interoperability testing of B6 (implementation is on-going at ESA)?
  3.  If there are any other CFDP topics you would like to discuss?

Regards,
Felix
_________________________________________
ESA - European Space Agency
Dr. Felix Flentge (he, him, his)
Software Engineer, OPS-GSB
Ground Systems Engineering and Innovation Department
Directorate of Operations
ESA - ESOC
Robert-Bosch-Str.5, D-64293 Darmstadt, Germany
Phone: +49 6151 90 4075 | Email: Felix.Flentge at esa.int<mailto:Felix.Flentge at esa.int>

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