[CESG] Your remark on SLS: [EXTERNAL] CESG Meeting on 25 Oct . - Draft MoM

Thu Nov 14 13:52:47 UTC 2019

Dear all,
I fully concur with Gian Paolo statement and proposed correction. Introducing GFP in the CCSDS stack is an issue that needs to be discussed and agreed between C&S, OPT, RFM and SLP WGs, GFP being a generic procedure for multiplexing PDUs from different sources/protocols into a synchronous stream.

Regards,
Gilles

Gilles MOURY
CNES Toulouse
De : Gian.Paolo.Calzolari at esa.int <Gian.Paolo.Calzolari at esa.int>
Envoyé : jeudi 14 novembre 2019 12:12
À : Shames, Peter M (US 312B) <peter.m.shames at jpl.nasa.gov>
Cc : CCSDS Engineering Steering Group - CESG Exec <cesg at mailman.ccsds.org>; Moury Gilles <Gilles.Moury at cnes.fr>; Margherita.di.Giulio at esa.int
Objet : Re: Your remark on SLS: [CESG] [EXTERNAL] CESG Meeting on 25 Oct . - Draft MoM

Peter,
        first of all I fail understanding how spamming the rest of CESG can help our discussion, but never mind.
Second, Margherita's sentence you comment does not state that SLP protocols need to be changed bur it rather puts accent on the impact on the "architecture stack".
Nobody in SLS Area Plenary meeting as well as (two) CESG Meetings mentioned adding data types or anything else to Space Data Link Protocols.

Moreover, I do not "invite the whole of SLS WG into this discussion" and this is NOT what I "wish to do".
Gilles and I simply reported the result of the discussion in the SLS Plenary.

Having said this, despite I think Margherita correctly captured the substance of the SLS reporting,  the only correction I think would be acceptable to that sentence is the following:
However, introducing the Generic Framing Procedure entails matters affecting architecture stack, code & synch, protocols.

That's all on my side and will not comment further on this as the ball is now in the field of (some) SLS WGs for proper discussion.

Regards

Gian Paolo

From:        "Shames, Peter M (US 312B)" <peter.m.shames at jpl.nasa.gov<mailto:peter.m.shames at jpl.nasa.gov>>
To:        "Gian.Paolo.Calzolari at esa.int<mailto:Gian.Paolo.Calzolari at esa.int>" <Gian.Paolo.Calzolari at esa.int<mailto:Gian.Paolo.Calzolari at esa.int>>
Cc:        "Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>" <Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>>, "Gilles Moury" <Gilles.Moury at cnes.fr<mailto:Gilles.Moury at cnes.fr>>, "CCSDS Engineering Steering Group - CESG Exec" <cesg at mailman.ccsds.org<mailto:cesg at mailman.ccsds.org>>
Date:        12-11-19 19:16
Subject:        Re: Your remark on SLS: [CESG] [EXTERNAL]  CESG Meeting on 25 Oct . - Draft MoM
________________________________

Gippo,

What is stated in inaccurate by any measure since GFP does not have anything to say about space data link protocols.  The only relationship that could possibly exist in the future would be to add another data type (or four) to the link layer protocols that GFP would formally recognize.  This requires no changes to those protocols, which is, in fact, a feature of GFP.

I'm not suggesting that you should not invite the whole of SLS WG into this discussion is that is what you wish to do.  I am asking that we all not make statements that are confusing and inaccurate.  The whole purpose of sending out the MoM and asking for feedback is to avoid such issues.

Regards, Peter

From: Gian Paolo Calzolari <Gian.Paolo.Calzolari at esa.int<mailto:Gian.Paolo.Calzolari at esa.int>>
Date: Tuesday, November 12, 2019 at 2:50 AM
To: Peter Shames <peter.m.shames at jpl.nasa.gov<mailto:peter.m.shames at jpl.nasa.gov>>
Cc: "Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>" <Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>>, Gilles Moury <Gilles.Moury at cnes.fr<mailto:Gilles.Moury at cnes.fr>>
Subject: Your remark on SLS: [CESG] [EXTERNAL] CESG Meeting on 25 Oct . - Draft MoM

Peter,
       with respect to your comment in the attached snapshot, I propose to do NO update to the MoMs also to avoid another useless saga on updates to updates to updates.
The natter will be properly discussed in SLS and this is the important message conveyed by the MoMs

Regards

Gian Paolo

[cid:image001.gif at 01D59AF6.7CF43870]

From:        "Shames, Peter M\(US 312B\) via CESG" <cesg at mailman.ccsds.org<mailto:cesg at mailman.ccsds.org>>
To:        "Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>" <Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>>, "cesg at mailman.ccsds.org<mailto:cesg at mailman.ccsds.org>" <cesg at mailman.ccsds.org<mailto:cesg at mailman.ccsds.org>>
Date:        11-11-19 20:09
Subject:        Re: [CESG] [EXTERNAL]  CESG Meeting on 25 Oct . - Draft MoM
Sent by:        "CESG" <cesg-bounces at mailman.ccsds.org<mailto:cesg-bounces at mailman.ccsds.org>>

________________________________

[attachment "d 0.1 CESG-Fall 19 Minutes of Meeting_ DRAFT-SEA.docx" deleted by Gian Paolo Calzolari/esoc/ESA]

Hi Margherita,

I had a few minutes free and have provided my feedback early, for a change.

Cheers, Peter

From: CESG <cesg-bounces at mailman.ccsds.org<mailto:cesg-bounces at mailman.ccsds.org>> on behalf of "Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>" <Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>>
Date: Monday, November 11, 2019 at 8:12 AM
To: CCSDS Engineering Steering Group - CESG Exec <cesg at mailman.ccsds.org<mailto:cesg at mailman.ccsds.org>>
Subject: [EXTERNAL] [CESG] CESG Meeting on 25 Oct . - Draft MoM

Dear All,
please find attached the draft Minute of Meeting of CESG Meeting on 25th October at ESOC.
Let me have your comments by 20th November.
If you edit the MoM, please use track changes.

Kind regards
Margherita

--------------------------------------------------------------
Margherita di Giulio
Ground Station Systems Division
Backend Software Section (OPS-GSB)

European Space Agency ESA/ESOC
Robert-Bosch-Str. 5
D-64293 Darmstadt - Germany
Tel: +49-6151-902779
e-mail: Margherita.di.Giulio at esa.int<mailto:Margherita.di.Giulio at esa.int>
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