From durst at mitre.org  Thu May  1 15:00:25 2025
From: durst at mitre.org (Robert C Durst)
Date: Thu, 1 May 2025 15:00:25 +0000
Subject: [Sis-dtn] FW: On CCSDS VCIDs - LNIS request
In-Reply-To: <38290246-BAF7-4384-A106-E685BFC37F0D@ndc.nasa.gov>
References: <4A659106-2FC2-4C1D-9544-770DF86E00F6@ndc.nasa.gov>
 <38290246-BAF7-4384-A106-E685BFC37F0D@ndc.nasa.gov>
Message-ID: <BY3PR09MB793928CD67B6BF421CD512E6AD822@BY3PR09MB7939.namprd09.prod.outlook.com>

FYSA.

 

From: Rodriguez, Shannon (GSFC-5670) <shannon.rodriguez-1 at nasa.gov> 
Sent: Thursday, May 1, 2025 10:56 AM
To: Robert C Durst <durst at mitre.org>; Kazz, Greg J (JPL-312B)[JPL Employee] <greg.j.kazz at jpl.nasa.gov>; Lux, Jim (JPL-3370)[JPL Employee] <james.p.lux at jpl.nasa.gov>
Cc: Pham, Timothy T (JPL-3300)[JPL Employee] <timothy.t.pham at jpl.nasa.gov>; Barkley, Erik J (JPL-3970)[JPL Employee] <erik.j.barkley at jpl.nasa.gov>; Ristovski, Ivica (MSFC-HP27) <ivica.ristovski at nasa.gov>
Subject: [EXT] Re: On CCSDS VCIDs - LNIS request

 

Forgot to add Vinny as well. He is cc?d now. S From: Shannon Rodriguez <shannon.?rodriguez-1@?nasa.?gov> Date: Thursday, May 1, 2025 at 10:?55 AM To: Robert C Durst <durst@?mitre.?org>, "Kazz, Greg J (JPL-312B)[JPL Employee]"



Forgot to add Vinny as well.  He is cc?d now.

 

S

 

From: Shannon Rodriguez <shannon.rodriguez-1 at nasa.gov <mailto:shannon.rodriguez-1 at nasa.gov> >
Date: Thursday, May 1, 2025 at 10:55?AM
To: Robert C Durst <durst at mitre.org <mailto:durst at mitre.org> >, "Kazz, Greg J (JPL-312B)[JPL Employee]" <greg.j.kazz at jpl.nasa.gov <mailto:greg.j.kazz at jpl.nasa.gov> >, "Lux, Jim (JPL-3370)[JPL Employee]" <james.p.lux at jpl.nasa.gov <mailto:james.p.lux at jpl.nasa.gov> >
Cc: "Pham, Timothy T (JPL-3300)[JPL Employee]" <timothy.t.pham at jpl.nasa.gov <mailto:timothy.t.pham at jpl.nasa.gov> >, "Barkley, Erik J (JPL-3970)[JPL Employee]" <erik.j.barkley at jpl.nasa.gov <mailto:erik.j.barkley at jpl.nasa.gov> >
Subject: On CCSDS VCIDs - LNIS request

 

Hello CCSDS WG Chairs,

 

LNIS has requested a few things from CCSDS. The topic in this email was identified by Wes Eddy/GSFC. We wanted to send this topic to you as it touches on your groups to get your reaction.

 

                                                                                                              

LNIS Need Description:

LNIS AD6 is identifying a few high-numbered VCIDs specifically for provider-to-user use, rather than the normal solely mission-determined use of VCIDs.

Currently, we are planning to use 3 values, indicating different priority levels of LunaNet messages / DTN data / IP packets.

 

 

CCSDS UPDATE REQUESTED

CCSDS to consider updating the STD to identify a set of higher value VC numbers as ?Reserved? so users do not use them. Not necessarily for LunaNet, but in general. Perhaps the top 10 values, except VCID63.

 

 

The initial reaction from the CESG folks in this email is:

 

Makes some sense if DTN is used. Needs broader discussion. Might show up in a SANA registry. It seems that it is an application profile on top of AOS/USLP? This may be in a registry somewhere. Maybe the question can be posed as "Are there any VCIDs that we can't use?"

 

 

Can you give a reaction or should we have a meeting?

 

Thanks,

Shannon

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