[CESG] RE: Result of CESG poll closing 2 February 2011 (LTP)

[Hooke, Adrian J (9000)]

CESG E-Poll Identifier:  CESG-P-2011-01-001 Approval to release CCSDS 734.1-R-1, Licklider Transmission Protocol (LTP) for CCSDS (Red Book, Issue 1) for CCSDS Agency review Results of CESG poll beginning 12 January 2011 and ending 27 January 2011:

   Abstain:  0 (0%)

  Approve Unconditionally:  3 (50%) (Peccia, Taylor, Durst)

  Approve with Conditions:  3 (50%) (Shames, Barkley, Moury)

  Disapprove with Comment:  0 (0%)

SECRETARIAT INTERPRETATION OF RESULTS:  Approved with Conditions

PROPOSED SECRETARIAT ACTION:            Generate CMC poll after conditions have been addressed

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The locus of the conditions centers around whether or not this document should be Blue or Magenta. A similar issue came up with MTS and we can expect to see it again with other documents that adopt other specifications by reference, such as DVB-S. It's clear that we need to do some CESG work to sharpen our shared understanding of the division between Blue and Magenta: however, that discussion should not hold up the Agency review.



It is quite clear that the intent of the LTP specification is to be a normative Blue Book. It contains a service specification and it adopts RFC 5326 as its base protocol specification. It is not "profiling" how to use RFC 5326 in space; it is adopting the technical specification contained in RFC 5326 as a CCSDS Recommended Standard. As such, it is clearly Blue. If there is language that needs to be sharpened to make that point clear, it can be corrected via the RID process. The rest of the comments similarly lend themselves to resolution via RIDS.



Accordingly, the document should progress to CMC poll.



Best regards

Adrian J. Hooke
Chairman, CCSDS Engineering Steering Group (CESG)
Space Communications and Navigation Office (SCaN)
Space Operations Mission Directorate
NASA Headquarters
Washington DC  20024-3210


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