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

Sat Oct 17 05:04:36 UTC 2020

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<mailto:Felix.Flentge at esa.int> <Felix.Flentge at esa.int<mailto:Felix.Flentge at esa.int>>
Sent: Monday, September 28, 2020 8:26 AM
To: Jeremy.Mayer at dlr.de<mailto:Jeremy.Mayer at dlr.de>
Cc: Holger.Dreihahn at esa.int<mailto:Holger.Dreihahn at esa.int>; Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>; Burleigh, Scott C (US 312B) <scott.c.burleigh at jpl.nasa.gov<mailto:scott.c.burleigh at jpl.nasa.gov>>; sis-cfdpv1 at mailman.ccsds.org<mailto: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<mailto:Jeremy.Mayer at dlr.de>>
To:        <Felix.Flentge at esa.int<mailto:Felix.Flentge at esa.int>>, <scott.c.burleigh at jpl.nasa.gov<mailto:scott.c.burleigh at jpl.nasa.gov>>
Cc:        <Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>>, <sis-cfdpv1 at mailman.ccsds.org<mailto:sis-cfdpv1 at mailman.ccsds.org>>, <Holger.Dreihahn at esa.int<mailto: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<mailto:sis-cfdpv1-bounces at mailman.ccsds.org>> on behalf of Felix.Flentge at esa.int<mailto:Felix.Flentge at esa.int> <Felix.Flentge at esa.int<mailto: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<mailto:Margherita.di.Giulio at esa.int>; sis-cfdpv1 at mailman.ccsds.org<mailto:sis-cfdpv1 at mailman.ccsds.org>; Holger.Dreihahn at esa.int<mailto: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<mailto:Felix.Flentge at esa.int>

From:        "Burleigh, Scott C\(US 312B\) via SIS-CFDPV1" <sis-cfdpv1 at mailman.ccsds.org<mailto:sis-cfdpv1 at mailman.ccsds.org>>
To:        "sis-cfdpv1 at mailman.ccsds.org<mailto:sis-cfdpv1 at mailman.ccsds.org>" <sis-cfdpv1 at mailman.ccsds.org<mailto:sis-cfdpv1 at mailman.ccsds.org>>, "'sis-mia at mailman.ccsds.org'" <sis-mia at mailman.ccsds.org<mailto:sis-mia at mailman.ccsds.org>>, "sis-dtn at mailman.ccsds.org<mailto:sis-dtn at mailman.ccsds.org>" <sis-dtn at mailman.ccsds.org<mailto: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<mailto: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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