[Sis-dtn] Bundle Transfer Protocol - Unidirectional

[Felix Flentge]

Hi Jorge,

Yes, we have the same scenario with some radio astronomy dishes and SPP (no COP obviously) is already working fine in this scenario (I am sure EPP would as well but we are not using it operationally, yet). So, it would be really good to understand (at least for CCSDS) why SPP/EPP is not suitable or why BPTU is better (in whichever way) to justify specifying an alternative (at least for CCSDS).

Regards,
Felix

From: SIS-DTN <sis-dtn-bounces at mailman.ccsds.org> On Behalf Of Jorge Amodio via SIS-DTN
Sent: 26 February 2025 16:20
To: tomaso.decola <tomaso.decola at dlr.de>; sis-dtn at mailman.ccsds.org
Subject: Re: [Sis-dtn] Bundle Transfer Protocol - Unidirectional


Good Morning,

As I expressed on the IETF DTN WG list, I'd very much like to see this moving forward since it fits one of the real use case scenarios today where we use astronomy dishes that only "listen"

Thanks & Regards
Jorge

From: SIS-DTN <sis-dtn-bounces at mailman.ccsds.org<mailto:sis-dtn-bounces at mailman.ccsds.org>> On Behalf Of Tomaso de Cola via SIS-DTN
Sent: Wednesday, February 26, 2025 7:14 AM
To: sis-dtn at mailman.ccsds.org<mailto:sis-dtn at mailman.ccsds.org>
Subject: [Sis-dtn] FW: Bundle Transfer Protocol - Unidirectional

Fyi

This is something Rick had already inform me and Bob some weeks ago when we did the monthly CCSDS/IETF alignment on DTN activities.

Regards,

Tomaso

From: Rick Taylor <rick at tropicalstormsoftware.com<mailto:rick at tropicalstormsoftware.com>>
Sent: Mittwoch, 26. Februar 2025 14:11
To: dtn at ietf.org<mailto:dtn at ietf.org>; 'Robert C Durst' (durst at mitre.org<mailto:durst at mitre.org>) <durst at mitre.org<mailto:durst at mitre.org>>
Subject: [dtn] Bundle Transfer Protocol - Unidirectional

Hi All,

Just to let you all know I have recently published a personal draft: Bundle Transfer Protocol - Unidirectional. https://datatracker.ietf.org/doc/draft-taylor-dtn-btpu/

The intent is to provide a minimal, efficient wire protocol for transferring Bundles over unidirectional, unreliable frame-based link-layer protocols, such as AOS, TM, 5G PDU and Ethernet.

I'm following it up with a related draft covering how to add FEC to BTPU, for cases when selective FEC is useful, and a simple BTPU-over-Ethernet draft, which might be handy in some scenarios.

Also, I would be particularly interested in collaborating with anyone who can help draft a good specification for BTPU over the CCSDS data-frame protocols.

I hope to find time in our packed WG agenda at IETF-112 to discuss it a bit more.

Many thanks,
Rick
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