[Css-csts] No objection for JAXA Re: One change to SLE Blue Books Version 5 ( currently with CCSDS Editor)

[YOSHIKAZU MIYANO]

Dear Margherita-san,

 From JAXA, I reply to your inquiry about extending the length in bytes 
of eventQualifier.

There is no objection about this change as version 5 both in CLTU and FSP.

The current version of two JAXA SLE User systems , supporting only CLTU 
in forward services, is version 2 (for near earth satellite missions and 
deep space missions)
and version 4 (only for deep space missions).  It is possible to 
implement version 5 from version 4 by small program modification.
Unfortunately,  JAXA SLE Provider systems do not still support throw 
event requested by SLE Service Users.

JAXA continues to make the utmost effort through reviewing documents 
though no JAXA have not joined in CSTS WG for three years because of 
insufficient  human
resources.

Best regards,

Miyano, MOIMS SM&C WG member


On 2016/07/01 22:36, Margherita.di.Giulio at esa.int wrote:
> Dear CSTS WG Members,
> at ESA we have come up with a (minor) change  which we would like to 
> introduce in two SLE Books - CLTU and FSP.
> The change relates to the "Throw Events" capability, which is now 
> widely used at ESA as it allows to do station's configuration actions 
> by the Mission Control Centre
> The request we have received from our operators is, simply,  to extend 
> the length of the qualifier of the event  (the "eventQualifier") from 
> currently 128 bytes to 1024 bytes (see details below*)
> They deem that the present qualifier format is overly restrictive and 
> should be changed to accommodate longer qualifier strings, in other 
> words, it should accommodate longer lists of parameters.
>
> Given that the CLTU and FSP books happen to be still in the Editor's 
> queue (following the Agency Review),we have a chance to inject now 
> this last-minutes change.
> If that succeeds, the change would already be available in the 
> upcoming the SLE version 5
> Obviously, the change  is backward compatible with implementations 
> respecting the existing constraint.
>
> With this e-mail, I would like to ask the Working Group members if 
> they agree to the change.
> If  there will be no objection, we will immediately proceed with the 
> update of the books. Then, the Editor will at last release all the 5 
> SLE books for the poll.
>
> Please let me have your answer by 6 July cob.
> Kind regards,
> Margherita
>
> --------------------------------------------------------------------------------------- 
>
> * The affected data structure and the required change are :
>
> from:
>  CltuThrowEventInvocation ::= SEQUENCE
> { invokerCredentials Credentials
> , invokeId InvokeId
> , eventInvocationIdentification EventInvocationId
> , eventIdentifier IntPosShort
> , eventQualifier OCTET STRING (SIZE (1 .. *128*))
> }
>
> to:
> CltuThrowEventInvocation ::= SEQUENCE
> { invokerCredentials Credentials
> , invokeId InvokeId
> , eventInvocationIdentification EventInvocationId
> , eventIdentifier IntPosShort
> , eventQualifier OCTET STRING (SIZE (1 .. *1024*))
> }
>
> --------------------------------------------------------------
> *Margherita di Giulio*
> Ground Station Back-end Section (OPS-GIB)
>
> *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
>
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