Re: [dtn-users] MSFC DTN2 Patches - 2016-02-29

Hi Nik,
Thanks for giving it a spin and I’m glad to hear that it patched and built successfully from the tip. My past experience has been that if I upload a patch then that same night changes get applied that break it which is why I provided a link to download the proper revision just in case. I look forward to learning of your results in the Pi test-bed.
Best regards,
DZ

From: Nik Ansell [mailto:nikansell00@gmail.com]
Sent: Tuesday, March 01, 2016 11:23 AM
To: Zoller, David A. (MSFC-EO50)[HOSC SERVICES CONTRACT]
Cc: dtn-users@irtf.org
Subject: Re: [dtn-users] MSFC DTN2 Patches - 2016-02-29

Hi David,

This looks like a very interesting release.

I did some quick tests using my Ubuntu 15.10 VMs running on VMWare Fusion and thought I'd report back on progress so far.

I did a "make clean" of all previous oasys, dtn2 and (in my case) LTPlib installations, then downloaded, patched and installed dtn2 and oasys without any issues. I did deviate slightly from the build instructions as I used hg clone the latest builds:
hg clone http://hg.code.sf.net/p/dtn/DTN2 dtn2
hg clone http://hg.code.sf.net/p/dtn/oasys oasys
The following tests completed successfully without any issues. (There were no network simulations between the nodes): UDPCL (100 x 63k bundles), TCPDL (100 x 1M bundles), LTPUDP (100 x 63K bundles).
I used the default settings for all LTPUDP link parameters and it seemed very fast.
I will run the same tests through some network simulations on my Pi test-bed at some point soon and report back how I get on.

Kind Regards,
Nik

On Tue, Mar 1, 2016 at 6:34 AM, Zoller, David A. (MSFC-EO50)[HOSC SERVICES CONTRACT] <david.a.zoller@nasa.gov<mailto:david.a.zoller@nasa.gov>> wrote:
Greetings all,
I have uploaded a new set of DTN2 patches to the Sourceforge site:
https://sourceforge.net/p/dtn/patches/8/

These patches contain the modifications used in operations at Marshall Space Flight Center (MSFC) in support of the International Space Station and several recent additions that will be rolled into it in the future. MSFC hosts a DTN2 based gateway node on the ground that communicates via LTP over UDP with an onboard ION gateway node to provide DTN capabilities to payloads.
Included are:

•         Performance improvements

•         IPN Scheme support fixes and enhancements

•         LTP over UDP (LTPUDP) Convergence Layer

•         LTPUDP with LTP Authentication extensions

•         STCP Convergence Layer (ION innovation)

•         External Router enhancements and our EHS Router

•         Extended Class of Service support (only EHS Router makes use of it for routing decisions)

•         Aggregate Custody Signal support

•         Delay Tolerant Payload Conditioning

Also included in this release are updates to the DTN and LTP Wireshark dissectors. The updated dissectors are uploaded here for those that would like to build from the Wireshark source code. They will also be uploaded to wireshark.org<http://wireshark.org> soon.

Thanks for giving them a try and please let me know if you run into any issues,
DZ

David Zoller
COLSA Corporation
Marshall Space Flight Center

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