<span style=" font-size:10pt;font-family:sans-serif">Oh,</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">somebody is interested:</span>
<br>
<br><span style=" font-size:10pt;font-family: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:10pt;font-family:sans-serif">Regards,</span>
<br><span style=" font-size:10pt;font-family:sans-serif">Felix</span>
<br>
<br>
<br>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
</span><span style=" font-size:9pt;font-family:sans-serif"><Jeremy.Mayer@dlr.de></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
</span><span style=" font-size:9pt;font-family:sans-serif"><Felix.Flentge@esa.int>,
<scott.c.burleigh@jpl.nasa.gov></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Cc:
</span><span style=" font-size:9pt;font-family:sans-serif"><Margherita.di.Giulio@esa.int>,
<sis-cfdpv1@mailman.ccsds.org>, <Holger.Dreihahn@esa.int></span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
</span><span style=" font-size:9pt;font-family:sans-serif">28/09/2020
17:01</span>
<br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
</span><span style=" font-size:9pt;font-family:sans-serif">Re:
[SIS-CFDPV1] CFDPv1 working group</span>
<br>
<hr noshade>
<br>
<br>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Hi,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">What
do you mean by distributed CFDP? In the sense of cross-station CFDP support
with associated buffering? </span></p>
<p style="margin-top:0px;margin-Bottom:0px"></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Thanks,</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:Calibri">Jeremy</span></p>
<br>
<hr>
<br><span style=" font-size:11pt;font-family:Calibri"><b>From:</b> SIS-CFDPV1
<sis-cfdpv1-bounces@mailman.ccsds.org> on behalf of Felix.Flentge@esa.int
<Felix.Flentge@esa.int><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> Margherita.di.Giulio@esa.int; sis-cfdpv1@mailman.ccsds.org; Holger.Dreihahn@esa.int<b><br>
Subject:</b> Re: [SIS-CFDPV1] CFDPv1 working group</span><span style=" font-size:12pt">
</span>
<br><span style=" font-size:12pt"> </span>
<br><span style=" font-size:10pt;font-family:sans-serif">Dear Scott,</span><span style=" font-size:12pt">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
I agree with your proposal to keep the WG in hibernation.</span><span style=" font-size:12pt">
<br>
</span><span style=" font-size:10pt;font-family: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:12pt"> <br>
</span><span style=" font-size:10pt;font-family: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:12pt">
<br>
</span><span style=" font-size:10pt;font-family:sans-serif"><br>
Regards,</span><span style=" font-size:12pt"> </span><span style=" font-size:10pt;font-family:sans-serif"><br>
Felix</span><span style=" font-size:12pt"> <br>
<br>
</span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
_________________________________________</b></span><span style=" font-size:12pt">
</span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
ESA - European Space Agency </b></span><span style=" font-size:8pt;color:#00a1e0;font-family:Verdana"><br>
Dr. Felix Flentge</span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
Software Engineer, OPS-GSB<br>
Ground Systems Engineering Department<br>
Directorate of Operations</span><span style=" font-size:12pt"> </span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><b><br>
ESA - ESOC</b><br>
Robert-Bosch-Str.5, D-64293 Darmstadt, Germany</span><span style=" font-size:12pt">
</span><span style=" font-size:8pt;color:#808080;font-family:Verdana"><br>
Phone: +49 6151 90 4075 | Email: Felix.Flentge@esa.int</span><span style=" font-size:12pt">
<br>
<br>
<br>
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif"><br>
From: </span><span style=" font-size:9pt;font-family:sans-serif">"Burleigh,
Scott C\(US 312B\) via SIS-CFDPV1" <sis-cfdpv1@mailman.ccsds.org></span><span style=" font-size:12pt">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif"><br>
To: </span><span style=" font-size:9pt;font-family:sans-serif">"sis-cfdpv1@mailman.ccsds.org"
<sis-cfdpv1@mailman.ccsds.org>, "'sis-mia@mailman.ccsds.org'"
<sis-mia@mailman.ccsds.org>, "sis-dtn@mailman.ccsds.org"
<sis-dtn@mailman.ccsds.org></span><span style=" font-size:12pt">
</span><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif"><br>
Date: </span><span style=" font-size:9pt;font-family:sans-serif">28/09/2020
14:17</span><span style=" font-size:12pt"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif"><br>
Subject: </span><span style=" font-size:9pt;font-family:sans-serif">[SIS-CFDPV1]
CFDPv1 working group</span><span style=" font-size:12pt"> </span><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif"><br>
Sent by: </span><span style=" font-size:9pt;font-family:sans-serif">"SIS-CFDPV1"
<sis-cfdpv1-bounces@mailman.ccsds.org></span><span style=" font-size:12pt">
<br>
</span>
<hr noshade><span style=" font-size:12pt"><br>
</span>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">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.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">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.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">But
if any of you all believe that the CFDP Revisions Working Group should
simply be terminated altogether at this time, please speak up.</span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri"> </span></p>
<p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:Calibri">Scott</span><tt><span style=" font-size:10pt">_______________________________________________<br>
SIS-CFDPV1 mailing list<br>
SIS-CFDPV1@mailman.ccsds.org</span></tt><span style=" font-size:12pt;color:blue"><u><br>
</u></span><a href="https://mailman.ccsds.org/cgi-bin/mailman/listinfo/sis-cfdpv1"><tt><span style=" font-size:10pt;color:blue"><u>https://mailman.ccsds.org/cgi-bin/mailman/listinfo/sis-cfdpv1</u></span></tt></a></p>
<p style="margin-top:0px;margin-Bottom:0px"></p>
<p style="margin-top:0px;margin-Bottom:0px"></p>