[dtn] Fwd: LTP CL for BP v7

Scott pointed out to me that the CL definition and the CL*A* definition
(how to carry bundles in the CL protocol) are different, so there might
still be a small bit of un-spec'ed work.  And that I forgot to cc: the
dtnwg (thx).... :o

    --keith

---------- Forwarded message ---------
From: Keith Scott <keithlscott@gmail.com>
Date: Mon, Apr 1, 2024 at 8:28 PM
Subject: Re: [dtn] LTP CL for BP v7
To: <sburleig.sb@gmail.com>

Though the CCSDS profile of the RFC5326-based LTP specification *is* a
published spec (https://public.ccsds.org/Pubs/734x1b1.pdf) that should be
suitable for contracting.

I'll also point you at a docker container-based emulation environment here
in case that's useful: https://github.com/keithlscott/opennetem. It comes
with a test scenario that uses LTP convergence layers.

The replacement for LTPCL is very much on CCSDS' todo list.  There's a
draft available to CCSDS dtn working group members but I'm not sure if
that's publicly available.  Let me see if that could be made available....

    --keith

On Mon, Apr 1, 2024 at 8:06 PM <sburleig.sb@gmail.com> wrote:

> Hi, John.  A quick answer that can be discussed further if needed: the LTP
> specification has not changed since RFC 5326, so that expired LTP CL spec
> should still be usable for software development – though it’s not a
> published standard that can be cited in a quote or bid, so you’re out of
> luck if that’s needed.
>
>
>
> The successor to LTP, currently under development in CCSDS DTN WG, will
> not be backward-compatible with LTP, and no CL specification for that
> protocol exists yet anyway, so at this time it’s not an option.
>
>
>
> Scott
>
>
>
> *From:* dtn <dtn-bounces@ietf.org> *On Behalf Of *John Dowdell
> *Sent:* Monday, April 1, 2024 9:34 AM
> *To:* DTN WG <dtn@ietf.org>
> *Subject:* [dtn] LTP CL for BP v7
>
>
>
> Dear all
>
>
>
> I have been looking for a published specification for LTP CL without
> success. The only draft I can find is one from Scott that expired some
> years back. I can see that ION-DTN has a LTP CL function but I’m not quite
> sure how that works.
>
>
>
> I have a need to build a stack that includes at least LTP v1 and BP v7,
> and hence the need for a working LTP CL. If the upcoming LTP v2 works with
> that same CL, all well and good but I get the feeling that it won’t.
>
>
>
> Can someone help me out here please? LTP CL seems to be on nobody’s
> current to-do list, neither IETF nor CCSDS, and I need something for the
> project I’m working on (those of you who know me will know what this is).
>
>
>
> Many thanks
>
>
>
> John
>
>
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> dtn mailing list
> dtn@ietf.org
> https://www.ietf.org/mailman/listinfo/dtn
>