[SIS-CFDPV1] [EXTERNAL] Re: CFDPv1 working group

Mon Oct 19 08:18:45 UTC 2020

Dear Scott,
The slot is fine for me.

Best regards,
Holger

Holger Dreihahn
European Spacecraft Operations Centre | European Space Agency | H-293
+49 6151 90 2233 | http://www.esa.int/esoc

From:   "Burleigh, Scott C (US 312B)" <scott.c.burleigh at jpl.nasa.gov>
To:     "sis-cfdpv1 at mailman.ccsds.org" <sis-cfdpv1 at mailman.ccsds.org>
Cc:     "'Grubbs, Rodney P. (MSFC-HP27)'" <rodney.grubbs at nasa.gov>, 
"Holger.Dreihahn at esa.int" <Holger.Dreihahn at esa.int>, 
"Felix.Flentge at esa.int" <Felix.Flentge at esa.int>, "Jeremy.Mayer at dlr.de" 
<Jeremy.Mayer at dlr.de>, "Margherita.di.Giulio at esa.int" 
<Margherita.di.Giulio at esa.int>
Date:   17/10/2020 07:04
Subject:        RE: [SIS-CFDPV1] [EXTERNAL] Re:  CFDPv1 working group

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.

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.

Scott

From: SIS-CFDPV1 <sis-cfdpv1-bounces at mailman.ccsds.org> On Behalf Of 
Burleigh, Scott C (US 312B) via SIS-CFDPV1
Sent: Monday, September 28, 2020 8:52 AM
To: Felix.Flentge at esa.int; Jeremy.Mayer at dlr.de
Cc: Margherita.di.Giulio at esa.int; 'Grubbs, Rodney P. (MSFC-HP27)' 
<rodney.grubbs at nasa.gov>; sis-cfdpv1 at mailman.ccsds.org; 
Holger.Dreihahn at esa.int
Subject: Re: [SIS-CFDPV1] [EXTERNAL] Re: CFDPv1 working group

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.

Scott

From: Felix.Flentge at esa.int <Felix.Flentge at esa.int> 
Sent: Monday, September 28, 2020 8:26 AM
To: Jeremy.Mayer at dlr.de
Cc: Holger.Dreihahn at esa.int; Margherita.di.Giulio at esa.int; Burleigh, Scott 
C (US 312B) <scott.c.burleigh at jpl.nasa.gov>; sis-cfdpv1 at mailman.ccsds.org
Subject: [EXTERNAL] Re: [SIS-CFDPV1] CFDPv1 working group

Oh, 

somebody is interested: 

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. 

Regards, 
Felix 

From:        <Jeremy.Mayer at dlr.de> 
To:        <Felix.Flentge at esa.int>, <scott.c.burleigh at jpl.nasa.gov> 
Cc:        <Margherita.di.Giulio at esa.int>, <sis-cfdpv1 at mailman.ccsds.org>, 
<Holger.Dreihahn at esa.int> 
Date:        28/09/2020 17:01 
Subject:        Re: [SIS-CFDPV1] CFDPv1 working group 

Hi,
What do you mean by distributed CFDP? In the sense of cross-station CFDP 
support with associated buffering? 
Thanks,
Jeremy

From: SIS-CFDPV1 <sis-cfdpv1-bounces at mailman.ccsds.org> on behalf of 
Felix.Flentge at esa.int <Felix.Flentge at esa.int>
Sent: Monday, September 28, 2020 4:59:00 PM
To: Burleigh, Scott C(US 312B)
Cc: Margherita.di.Giulio at esa.int; sis-cfdpv1 at mailman.ccsds.org; 
Holger.Dreihahn at esa.int
Subject: Re: [SIS-CFDPV1] CFDPv1 working group 

Dear Scott, 

I agree with your proposal to keep the WG in hibernation. 

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. 

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). 

Regards, 
Felix 

_________________________________________ 
ESA - European Space Agency 
Dr. Felix Flentge
Software Engineer, OPS-GSB
Ground Systems Engineering 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 

From:        "Burleigh, Scott C\(US 312B\) via SIS-CFDPV1" <
sis-cfdpv1 at mailman.ccsds.org> 
To:        "sis-cfdpv1 at mailman.ccsds.org" <sis-cfdpv1 at mailman.ccsds.org>, 
"'sis-mia at mailman.ccsds.org'" <sis-mia at mailman.ccsds.org>, "
sis-dtn at mailman.ccsds.org" <sis-dtn at mailman.ccsds.org> 
Date:        28/09/2020 14:17 
Subject:        [SIS-CFDPV1] CFDPv1 working group 
Sent by:        "SIS-CFDPV1" <sis-cfdpv1-bounces at mailman.ccsds.org> 

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.

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.

But if any of you all believe that the CFDP Revisions Working Group should 
simply be terminated altogether at this time, please speak up.

Scott_______________________________________________
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