[Sls-slp] USLP capability of direct PDU insertion into Frame Data Field

Tomaso.deCola at dlr.de Tomaso.deCola at dlr.de
Tue Jan 26 23:15:09 UTC 2016

Hi Greg,
With this do you mean that "higher" layer protocol PDUs can be directly encapsulated into USLP, avoiding the use of the Encaps Service? If this is the case, I guess ( I don't remember right now) that the service primitives exposed to the upper layers (e.g., LTP or BP) will override the primitives currently offered by the Encaps service. On the contrary, if the primitives are different I'd say that the interface between USLP and the higher layer protocols will be different from the case where you have Encaps instead of USLP. Can you develop a bit more on this point?


Deutsches Zentrum für Luft- und Raumfahrt (DLR)
German Aerospace Center
Institute of Communications and Navigation | Satellite Networks | Oberpfaffenhofen | 82234 Wessling | Germany
Tomaso de Cola, Ph.D.
Telefon +49 8153 28-2156 | Telefax  +49 8153 28-2844 | tomaso.decola at dlr.de<mailto:tomaso.decola at dlr.de>

From: sls-slp-bounces at mailman.ccsds.org [mailto:sls-slp-bounces at mailman.ccsds.org] On Behalf Of Kazz, Greg J (312B)
Sent: Tuesday, January 26, 2016 18:06
To: sls-slp at mailman.ccsds.org
Subject: [Sls-slp] USLP capability of direct PDU insertion into Frame Data Field

Dear SLP members,

Just as a reminder, the definition of the Protocol ID field within the USLP Transfer Frame Data Field Header allows for the capability of inserting CCSDS recognized PDUs directly into the data field I.e., data zone in USLP parlance of the frame. See Section TRANSFER FRAME DATA FIELD HEADER



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