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<p class="MsoNormal">Hi, CFDP fans. The work items in the charter for the CFDP Revisions Working Group have been completed (modulo a small amount of Green Book editing I need to do to satisfy publication poll conditions), so it is just about time to put the
Working Group into hibernation. But Felix raised an interesting point of technical discussion that I think we might spend some time on during these Fall technical meetings.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So I am proposing that we meet for 90 minutes at 0700 Pacific time (1000 Eastern, 1500 CET, 2200 CST, 2300 JST) on Friday, November 6, to discuss ESA’s Distributed CFDP concept. If anyone finds this time slot impossible, please let me
know. Otherwise I’ll send out some sort of virtual meeting invitation, TBD, when I return from vacation week after next.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Scott<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> SIS-CFDPV1 <sis-cfdpv1-bounces@mailman.ccsds.org>
<b>On Behalf Of </b>Burleigh, Scott C (US 312B) via SIS-CFDPV1<br>
<b>Sent:</b> Monday, September 28, 2020 8:52 AM<br>
<b>To:</b> Felix.Flentge@esa.int; Jeremy.Mayer@dlr.de<br>
<b>Cc:</b> Margherita.di.Giulio@esa.int; 'Grubbs, Rodney P. (MSFC-HP27)' <rodney.grubbs@nasa.gov>; sis-cfdpv1@mailman.ccsds.org; Holger.Dreihahn@esa.int<br>
<b>Subject:</b> Re: [SIS-CFDPV1] [EXTERNAL] Re: CFDPv1 working group<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks, Felix, this does sound interesting. Once we know the timing of the DTN and MIA WG meetings, I’ll schedule a CFDP meeting to discuss this work.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Scott<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> <a href="mailto:Felix.Flentge@esa.int">Felix.Flentge@esa.int</a> <<a href="mailto:Felix.Flentge@esa.int">Felix.Flentge@esa.int</a>>
<br>
<b>Sent:</b> Monday, September 28, 2020 8:26 AM<br>
<b>To:</b> <a href="mailto:Jeremy.Mayer@dlr.de">Jeremy.Mayer@dlr.de</a><br>
<b>Cc:</b> <a href="mailto:Holger.Dreihahn@esa.int">Holger.Dreihahn@esa.int</a>; <a href="mailto:Margherita.di.Giulio@esa.int">
Margherita.di.Giulio@esa.int</a>; Burleigh, Scott C (US 312B) <<a href="mailto:scott.c.burleigh@jpl.nasa.gov">scott.c.burleigh@jpl.nasa.gov</a>>;
<a href="mailto:sis-cfdpv1@mailman.ccsds.org">sis-cfdpv1@mailman.ccsds.org</a><br>
<b>Subject:</b> [EXTERNAL] Re: [SIS-CFDPV1] CFDPv1 working group<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Oh,</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">somebody is interested:</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Distributed CFDP in the sense of cross-station support and real-time protocol closure (CFDP Class 2) via the Mission Operations Centre while the downlink data rate is much higher then the available
terrestrial data rate. Offline file reconstruction in the Payload Data Ground Segment.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Regards,</span> <br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Felix</span> <br>
<br>
<br>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">From: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif"><<a href="mailto:Jeremy.Mayer@dlr.de">Jeremy.Mayer@dlr.de</a>></span>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">To: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif"><<a href="mailto:Felix.Flentge@esa.int">Felix.Flentge@esa.int</a>>, <<a href="mailto:scott.c.burleigh@jpl.nasa.gov">scott.c.burleigh@jpl.nasa.gov</a>></span>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Cc: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif"><<a href="mailto:Margherita.di.Giulio@esa.int">Margherita.di.Giulio@esa.int</a>>, <<a href="mailto:sis-cfdpv1@mailman.ccsds.org">sis-cfdpv1@mailman.ccsds.org</a>>,
<<a href="mailto:Holger.Dreihahn@esa.int">Holger.Dreihahn@esa.int</a>></span> <br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Date: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">28/09/2020 17:01</span>
<br>
<span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F">Subject: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">Re: [SIS-CFDPV1] CFDPv1 working group</span>
<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:12.0pt">Hi,</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:12.0pt">What do you mean by distributed CFDP? In the sense of cross-station CFDP support with associated buffering?
</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:12.0pt">Thanks,</span><o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"><span style="font-size:12.0pt">Jeremy</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><br>
<b>From:</b> SIS-CFDPV1 <<a href="mailto:sis-cfdpv1-bounces@mailman.ccsds.org">sis-cfdpv1-bounces@mailman.ccsds.org</a>> on behalf of
<a href="mailto:Felix.Flentge@esa.int">Felix.Flentge@esa.int</a> <<a href="mailto:Felix.Flentge@esa.int">Felix.Flentge@esa.int</a>><b><br>
Sent:</b> Monday, September 28, 2020 4:59:00 PM<b><br>
To:</b> Burleigh, Scott C(US 312B)<b><br>
Cc:</b> <a href="mailto:Margherita.di.Giulio@esa.int">Margherita.di.Giulio@esa.int</a>;
<a href="mailto:sis-cfdpv1@mailman.ccsds.org">sis-cfdpv1@mailman.ccsds.org</a>; <a href="mailto:Holger.Dreihahn@esa.int">
Holger.Dreihahn@esa.int</a><b><br>
Subject:</b> Re: [SIS-CFDPV1] CFDPv1 working group<span style="font-size:12.0pt">
</span><br>
<span style="font-size:12.0pt"> </span> <br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Dear Scott,</span><span style="font-size:12.0pt">
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
I agree with your proposal to keep the WG in hibernation.</span><span style="font-size:12.0pt">
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
Regarding a virtual meeting, we have conducted some internal work on a "Distributed CFDP Concept" to cover the needs of our upcoming Earth Observation missions with very high downlink rates. While we currently believe that this concept does not (necessarily)
require changes to the CFDP standard itself, it might be interesting to present the concept to the working group.</span><span style="font-size:12.0pt">
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
Actually, we aim at standardising a Return CFDP PDU Cross-Support Service to support this concept. This would be under the responsibility of the CSTS WG where Holger Dreihahn already presented the concept during the last meeting. Nevertheless, it is of course
important, to define this service in close collaboration with the CFDP WG (if there is interest).</span><span style="font-size:12.0pt">
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
Regards,</span><span style="font-size:12.0pt"> </span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
Felix</span><span style="font-size:12.0pt"> <br>
<br>
</span><b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:gray"><br>
_________________________________________</span></b><span style="font-size:12.0pt">
</span><b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:gray"><br>
ESA - European Space Agency </span></b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#00A1E0"><br>
Dr. Felix Flentge</span><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:gray"><br>
Software Engineer, OPS-GSB<br>
Ground Systems Engineering Department<br>
Directorate of Operations</span><span style="font-size:12.0pt"> </span><b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:gray"><br>
ESA - ESOC</span></b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:gray"><br>
Robert-Bosch-Str.5, D-64293 Darmstadt, Germany</span><span style="font-size:12.0pt">
</span><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:gray"><br>
Phone: +49 6151 90 4075 | Email: <a href="mailto:Felix.Flentge@esa.int">Felix.Flentge@esa.int</a></span><span style="font-size:12.0pt">
<br>
<br>
<br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F"><br>
From: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"Burleigh, Scott C\(US 312B\) via SIS-CFDPV1" <<a href="mailto:sis-cfdpv1@mailman.ccsds.org">sis-cfdpv1@mailman.ccsds.org</a>></span><span style="font-size:12.0pt">
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F"><br>
To: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"<a href="mailto:sis-cfdpv1@mailman.ccsds.org">sis-cfdpv1@mailman.ccsds.org</a>" <<a href="mailto:sis-cfdpv1@mailman.ccsds.org">sis-cfdpv1@mailman.ccsds.org</a>>, "'sis-mia@mailman.ccsds.org'"
<<a href="mailto:sis-mia@mailman.ccsds.org">sis-mia@mailman.ccsds.org</a>>, "<a href="mailto:sis-dtn@mailman.ccsds.org">sis-dtn@mailman.ccsds.org</a>" <<a href="mailto:sis-dtn@mailman.ccsds.org">sis-dtn@mailman.ccsds.org</a>></span><span style="font-size:12.0pt">
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F"><br>
Date: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">28/09/2020 14:17</span><span style="font-size:12.0pt">
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F"><br>
Subject: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">[SIS-CFDPV1] CFDPv1 working group</span><span style="font-size:12.0pt">
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#5F5F5F"><br>
Sent by: </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif">"SIS-CFDPV1" <<a href="mailto:sis-cfdpv1-bounces@mailman.ccsds.org">sis-cfdpv1-bounces@mailman.ccsds.org</a>></span><span style="font-size:12.0pt">
</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p style="margin:0in;margin-bottom:.0001pt">Hi, all. With the CCSDS fall meetings coming up soon, I would like us to reach some consensus on next steps for the CFDP Revisions Working Group. Because all items of the WG’s Charter have been completed, I don’t
plan to schedule a virtual meeting of the WG next month; the only question on the table, I think, is whether to terminate the WG at this point or instead to place it in a “dormant” (hibernation) state, much like the Voice WG.<o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt">The SIS WG chairs agree that the latter is preferable: more work on CFDP will become necessary at some point in the future, and the administrative procedures for starting up a new working group are time-consuming.
Resuming the operations of a dormant WG to address new issues is vastly easier.<o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt">But if any of you all believe that the CFDP Revisions Working Group should simply be terminated altogether at this time, please speak up.<o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt"> <o:p></o:p></p>
<p style="margin:0in;margin-bottom:.0001pt">Scott<tt><span style="font-size:10.0pt">_______________________________________________</span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br>
<tt>SIS-CFDPV1 mailing list</tt><br>
<tt><a href="mailto:SIS-CFDPV1@mailman.ccsds.org">SIS-CFDPV1@mailman.ccsds.org</a></tt></span><u><span style="font-size:12.0pt;color:blue"><br>
</span></u><a href="https://urldefense.us/v3/__https:/mailman.ccsds.org/cgi-bin/mailman/listinfo/sis-cfdpv1__;!!PvBDto6Hs4WbVuu7!exltIDQTeBhxRnJ0BW5XJhDIM6MKQIgzOvhq6vrfEjRAWQf5oxy6i1m-CxTFN5h6oGl-bl6Jzpw$"><tt><span style="font-size:10.0pt">https://mailman.ccsds.org/cgi-bin/mailman/listinfo/sis-cfdpv1</span></tt></a><o:p></o:p></p>
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