[CESG] CESG-P-2023-05-001 Approval to publish CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue 1)
CCSDS Secretariat
thomas.gannett at tgannett.net
Wed Jan 17 20:13:47 UTC 2024
Dear CESG Members,
Conditions for approval of CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue 1) have been disposed to the satisfaction of the AD(s) who voted to approve with conditions. The Secretariat will now proceed with CMC polling to authorize publication.
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From: Barkley, Erik J (US 3970) <erik.j.barkley at jpl.nasa.gov>
Sent: Wednesday, January 17, 2024 2:28 PM
To: Shames, Peter M (US 312B); Thomas Gannett
Cc: Holger Dreihahn; Colin Haddow; Secretariat at mailman.ccsds.org
Subject: Resolved conditions re CESG-P-2023-05-001 Approval to publish CCSDS
901.3-M-1, Functional Resource Model (Magenta Book, Issue 1)
Attachments: RE: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta
Boo... (44.8 KB); 901x3m0_CESG_Approval - 20231204-CRH-HD.doc
Categories: Poll Condition Closure
Peter,
Thank you very much for taking a look and indicating that your poll conditions have been resolved.
Tom,
To the best of my knowledge all the CESG Poll conditions regarding publication of the Functional
Resource Model have been resolved. Attached please find, for reference, an email containing indication
of resolved conditions from the SLS AD. Also attached please find the updated book addressing the
conditions from the SE AD.
Best regards,
-Erik
From: Shames, Peter M (US 312B) <peter.m.shames at jpl.nasa.gov>
Sent: Wednesday, January 17, 2024 11:01
To: Barkley, Erik J (US 3970) <erik.j.barkley at jpl.nasa.gov>
Cc: Holger Dreihahn <Holger.Dreihahn at esa.int>; Colin Haddow <Scotty.Consulting at outlook.de>
Subject: Re: Updated FRM Book.
Hi Guys,
Sorry for the delay. Somehow this fell off my radar. I did go through your feedback and I see some
places where I might have made a different choice, but it’s your tool and it needs to work for you. I also
found some places where my quick reading of this large document led to some misunderstandings that
you have dealt with.
Accordingly I am in agreement that my issues have been satisfactorily resolved and you are at liberty to
take the next steps.
Good work.
Best regards, Peter
From: Erik Barkley <erik.j.barkley at jpl.nasa.gov>
Date: Thursday, January 11, 2024 at 12:34 PM
To: Peter Shames <peter.m.shames at jpl.nasa.gov>
Cc: Holger Dreihahn <Holger.Dreihahn at esa.int>, Colin Haddow
<Scotty.Consulting at outlook.de>
Subject: RE: Updated FRM Book.
Hi Peter,
A friendly reminder and/or question as to if your conditions have been satisfied re CESG-P-2023-05-001
Approval to publish CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue 1). Any inputs
you may have will be greatly appreciated.
Best regards,
-Erik
From: Colin Haddow <Scotty.Consulting at outlook.de> On Behalf Of Colin Haddow
Sent: Friday, December 8, 2023 2:24
To: Shames, Peter M (US 312B) <peter.m.shames at jpl.nasa.gov>
Cc: Barkley, Erik J (US 3970) <erik.j.barkley at jpl.nasa.gov>; Holger Dreihahn <holger.dreihahn at esa.int>
Subject: [EXTERNAL] Updated FRM Book.
Hi Peter,
please find attached the revised FRM book. Holger and I believe that all the
points have now been addressed in line with our various discussions in telecons and at
Den Haag.
Hopefully you will be in agreement.
Cheers for now,
Colin
Dr. Colin R. Haddow
Scotty Consulting UG
****************************
From: Barkley, Erik J (US 3970) <erik.j.barkley at jpl.nasa.gov>
Sent: Wednesday, June 28, 2023 2:54 PM
To: Thomas Gannett
Cc: Colin Haddow; Ignacio Aguilar Sanchez; Holger Dreihahn;
Secretariat at mailman.ccsds.org
Subject: RE: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue
1)
Dear Tom,
The PIDs submitted by the SLS AD (Ignacio) with regard to the publication poll for the Functional
Resource Model (CCSDS 901.3) have been resolved to the satisfaction of all parties involved.
Poll ID: CESG-P-2023-05-001
Link to Poll:
https://cwe.ccsds.org/fm/Lists/CESGPollQuestion/DispFormClosed.aspx?ID=70&Source=open.aspx
Best regards,
-Erik
From: Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez at esa.int>
Sent: Tuesday, June 27, 2023 0:07
To: Barkley, Erik J (US 3970) <erik.j.barkley at jpl.nasa.gov>; Holger Dreihahn <Holger.Dreihahn at esa.int>
Cc: Colin Haddow <Scotty.Consulting at outlook.de>
Subject: [EXTERNAL] RE: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book,
Issue 1)
Indeed, Erik.
Kind regards,
Ignacio
Ignacio
Ignacio Aguilar Sánchez
Communication Systems Engineer
Electrical Engineering Department
European Space Research and Technology Centre
Keplerlaan 1, PO Box 299, 2200 AG Noordwijk, The Netherlands
Mob.+31641360257
Fax +31715655418
Email: ignacio.aguilar.sanchez at esa.int
www.esa.int
From: Barkley, Erik J (US 3970) <erik.j.barkley at jpl.nasa.gov>
Sent: Friday, June 16, 2023 7:34 PM
To: Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez at esa.int>; Holger Dreihahn
<Holger.Dreihahn at esa.int>
Cc: Colin Haddow <Scotty.Consulting at outlook.de>
Subject: RE: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue 1)
Dear Ignacio, Holger,
Thank you for the email confirming closure on PID #1. I believe that we also have agreement re PID
#2. As such, I think we can send an email to the secretariat indicating that these PIDs have been
resolved. Please do not hesitate to let me know if I my understanding is incorrect.
Best regards,
-Erik
From: Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez at esa.int>
Sent: Friday, June 16, 2023 4:44
To: Holger Dreihahn <Holger.Dreihahn at esa.int>
Cc: Colin Haddow <Scotty.Consulting at outlook.de>; Barkley, Erik J (US 3970)
<erik.j.barkley at jpl.nasa.gov>
Subject: [EXTERNAL] RE: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book,
Issue 1)
Dear Holger,
Likewise. Thank you for the very good discussion.
I confirm our common understanding and agreement. Hence, the PID 1 can be closed.
Kind regards,
Ignacio
Ignacio Aguilar Sánchez
Communication Systems Engineer
Electrical Engineering Department
European Space Research and Technology Centre
Keplerlaan 1, PO Box 299, 2200 AG Noordwijk, The Netherlands
Mob.+31641360257
Fax +31715655418
Email: ignacio.aguilar.sanchez at esa.int
www.esa.int
From: Holger Dreihahn <Holger.Dreihahn at esa.int>
Sent: Friday, June 16, 2023 12:51 PM
To: Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez at esa.int>
Cc: Colin Haddow <Scotty.Consulting at outlook.de>; erik.j.barkley at jpl.nasa.gov
Subject: FW: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue 1)
Dear Ignacio,
Thanks a lot for the discussion we had today about PID 1):
1. One major comment stems from the apparent absence in chapter 7 of a
consideration of the optional security services that can be provided with the
space link protocols (with SDLS) and the corresponding FRs and/or additional
requirements for the already identified FRs. Chapter 7 needs to include security
services provided by SDLS.
We agreed that although SDLS may be in use, for the majority of cases the ESLT (aka ground station) is
transparent to SDLS security. In other words, the ESLT does not perform the function of encryption,
decryption or authentication of frames. As such, there is at the moment no Functional Resource(s)
covering SDLS functions and consequently no discussion in the FRM Magenta Book. If you agree, it is
suggested to close PID 1).
If in the future an ESLT would provide security functions, let it be on frame level (SDLS) or for instance
on Bundle level (BPsec), corresponding Functional Resources can be registered at SANA and discussed in
the FRM Magenta book. Such Functional Resource would refernce as usual the corresponding CCSDS
Blue Books and would reflect the Managed Parameter section.
Best regards,
Holger
From: Holger Dreihahn <Holger.Dreihahn at esa.int>
Date: Tuesday, 13. June 2023 at 14:05
To: Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez at esa.int>, Colin Haddow
<Scotty.Consulting at Scotty-Enterprizes.com>
Cc: Erik Barkley <erik.j.barkley at jpl.nasa.gov>
Subject: Re: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue
1)
Dear Ignacio,
I think there may be a misunderstanding what functional resources are and what they aim at. First, the
scope of functional resources is to define functions, as they are provided by a ground station (ESLT).
These functions are described by the FRM, very often reference a CCSDS standard (the exception is the
antenna, not covered by a CCSDS standard but still vital for ground stations). The CCSDS standards
describe typically the data/signal in/out of a functional resource. What is typically not so well covered in
CCSDS standards (section managed parameters) is done by Functional Resources. Functional Resources
“specify the configuration parameters, monitored parameters, and notifiable events associated with
that functionality” (see 2.2.1) allowing to configure and monitor functions of an ESLT in an abstract yet
precise manner.
As such it seems normal that also functions with inherent security or reliability mechanism are covered
by the FRM in terms of functional description, parameters, and event. An example of such a function
providing reliability may the functions performing channel coding. However, that still means that the
FRM is an abstract information model. In my mind security can only be applied at a concrete level like a
protocol, transferring information adhering to the FRM. An example of such a protocol is the CSTS
Monitored Data Service, which provides an authentication mechanism and defers security aspects like
encryption to lower layers like IPsec.
Does that make sense to you?
Best regards,
Holger
From: Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez at esa.int>
Date: Monday, 12. June 2023 at 17:34
To: Colin Haddow <Scotty.Consulting at Scotty-Enterprizes.com>
Cc: Erik Barkley <erik.j.barkley at jpl.nasa.gov>, Holger Dreihahn <Holger.Dreihahn at esa.int>
Subject: RE: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue
1)
Dear Colin,
Good to read from you!
1. Thank you for the answer but unfortunately there is something still unclear to me.
Reliability and security are optional services that can be provided by the link layer. Reliability seems to
be within scope of the FRM as seen for instance in section 1.3 h) or Chapter 6.
I also understand it is excluded from Chapter 7 (e.g., Table 7-1) as it is treated in Chapter 6.
Why is reliability within FRM and not security?
If security stays out, the FRM seems to me incomplete.
How will you handle security?
2. Proposed clarification is fine and solves the condition.
Kind regards,
Ignacio
Ignacio Aguilar Sánchez
Communication Systems Engineer
Electrical Engineering Department
European Space Research and Technology Centre
Keplerlaan 1, PO Box 299, 2200 AG Noordwijk, The Netherlands
Mob.+31641360257
Fax +31715655418
Email: ignacio.aguilar.sanchez at esa.int
www.esa.int
From: Colin Haddow <Scotty.Consulting at outlook.de> On Behalf Of Colin Haddow
Sent: Monday, June 12, 2023 3:08 PM
To: Ignacio Aguilar Sanchez <Ignacio.Aguilar.Sanchez at esa.int>
Cc: Erik Barkley <erik.j.barkley at jpl.nasa.gov>; Holger Dreihahn <Holger.Dreihahn at esa.int>
Subject: Your PIDs on CCSDS 901.3-M-1, Functional Resource Model (Magenta Book, Issue 1)
Dear Ignacio,
many thanks for your review of CCSDS 901.3-M-1, Functional Resource
Model. With respect to the major points you raise, viz;
1. One major comment stems from the apparent absence in chapter 7 of a
consideration of the optional security services that can be provided with the
space link protocols (with SDLS) and the corresponding FRs and/or additional
requirements for the already identified FRs. Chapter 7 needs to include security
services provided by SDLS.
2. Another less critical comment concerns the treatment of CCSDS 415 signal in
chapter 5. Since CCSDS 401 is identified in two Functional Resource Sets up
front (see 5.1. Overview), it is understood that they exclude 415 signal. However,
no FR appears to be identified for 415. It shall be noted, though, that 415 is well
identified and mentioned in 9.2.2.2.5 when referring to turnaround ratios for Two-
Way Doppler tracking. Hence, chapter 5 needs to reflect the existence of 415
and map it, possibly to dedicated FRs and/or evolved
please find our answers below;
1. With respect to security the point of view of the CSTS working group is that
the underlying protocols, for example in the case of the CSTS Monitored Data
Service, or the space link security protocols need to ensure security aspects like
authentication, privacy, authorization etc. The Functional Resources are just an
information model formalizing the exchanged information. This being the case
the security aspects are outside the scope of the Functional Resource Model
Magenta Book.
2. The scope of this initial version of the Functional Resource Model Magenta Book
as defined in section 1.3 does not include CCSDS 415. It is the intention that the
coverage of CCSDS books (not just 415) in terms of functions will be extended in
future. To clarify this a note will be added at the end of section 1.3 stating;
"NOTE - as of this issue of this Recommended Practise the coverage of CCSDS
books in terms of Functional Resources is not exhaustive and will be extended in
future versions."
Hopefully the above addresses your concerns.
Cheers for now,
Colin
Dr. Colin R. Haddow
Scotty Consulting UG
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