[Sls-slp] Re: Encapsulation PIDs for DTN, LTP, etc

Scott, Keith L. kscott at mitre.org
Tue Oct 27 11:46:35 UTC 2009


Greg,

I'll bring this up with the WG on Wed morning; I hope to be able to resolve via email but a mini-tem is ok too. Obviously we can live with just ltp, but then we take a bit of an overhead hit when reliable prox-1 is available. On the other hand we do get something out of ltp even over reliable links.

--keith

________________________________
From: Kazz, Greg J (313B) <greg.j.kazz at jpl.nasa.gov>
To: Scott, Keith L.; Burleigh, Scott C (313B) <scott.c.burleigh at jpl.nasa.gov>; Hooke, Adrian J (9000) <adrian.j.hooke at jpl.nasa.gov>
Cc: 'sls-slp at mailman.ccsds.org' <sls-slp at mailman.ccsds.org>
Sent: Tue Oct 27 07:38:43 2009
Subject: RE: Encapsulation PIDs for DTN, LTP, etc

Keith,

There are 3 Primary PIDs currently available and 16 extended PIDs available. See Encap Packet Header.
Gian Paolo suggests that we have a mini-TIM between our WGs to discuss this.
If we can work it out over email, that’s good too.

Greg

From: Scott, Keith L. [mailto:kscott at mitre.org]
Sent: Tuesday, October 27, 2009 4:25 AM
To: Kazz, Greg J (313B); Burleigh, Scott C (313B); Hooke, Adrian J (9000)
Cc: 'sls-slp at mailman.ccsds.org'
Subject: Re: Encapsulation PIDs for DTN, LTP, etc

Greg,

We've been thinking about the following:

1) DTN directly over Encap (e.g. When used over prox-1 reliable packet service.)

2) DTN over LTP over encap over (tc/tm or aos)

Thus, would it make sense to have encap pids for each (ltp and 'direct DTN') (how many ids are available)?

Scott - I'm assuming that ltp would use the Client Service ID to identify dtn vs. Other ltp users.

--keith

________________________________
From: Kazz, Greg J (313B) <greg.j.kazz at jpl.nasa.gov>
To: Scott, Keith L.; Burleigh, Scott C (313B) <scott.c.burleigh at jpl.nasa.gov>; Hooke, Adrian J (9000) <adrian.j.hooke at jpl.nasa.gov>
Cc: sls-slp at mailman.ccsds.org <sls-slp at mailman.ccsds.org>
Sent: Tue Oct 27 06:58:42 2009
Subject: Encapsulation PIDs for DTN, LTP, etc
Keith et al,

SLS-SLP WG would like to know if the DTN WG needs to define Encapsulation Protocol IDs (PIDs) for LTP blocks, or DTN Bundles, or something else?
The actual value of these PIDs would go into the Space Link Identifiers Blue Book.
SLS-SLP WG is advancing the Space Link Identifiers Blue Book to a new version as a result of our meeting today.

Please let me know if you want to comment on this issue.

Thanks,

Greg
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