[Css-csts] One change to SLE Blue Books Version 5 ( currently with CCSDS Editor)

[Margherita.di.Giulio at esa.int]

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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