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The NASA’s Interplanetary Overlay Network (ION) is an implementation of Delay/Disruption Tolerant Networking (DTN).

DTN is a digital communication networking technology that enables data to be conveyed reliably among communicating entities when roundtrip times may be highly variableand/or very long. Data transmission is done automatically and reliably even if one or more of the network links in the end-to-end path between those entities is subject to very long signal propagation latency and/or prolonged intervals of unavailability.

ION DTN is suitable to both planetary and interplanetary environments succeptible to communication delay and disruption.

1. Linux, MacOS or SolarisTo build and install the entire ION system on aLinux, OS/X, or Solaris platform, cd into ion-open-source and enter three commands:

$ ./configure (If configure is not present run: "autoreconf -fi" first)$ make$ sudo make install

NOTE: if you want to set overriding compile-time switches for a build,the place to do this is in the ./configure command. For details,

$ ./configure -h

2. Android

To build ION for `Android`, cd into ion-open-source/arch-android and see the instructions in the `README.bionic` text file.

3. RTEMS

To build ION for `RTEMS`, cd into ion-open-source/arch-rtems and see the instructions in the README text file.

4. Windows

To build ION for `Windows`, see the instructions in the "Building ION from source on Windows.pdf" document.

5. ARM-based AT91SAM9G20 board

To build ION for the `ARM-based AT91SAM9G20 board`, cd into ion-open-source/arch-uClibc and see the instructions in the "ARM build.pdf" file.

6. Build individual ION packages

It's also possible to build the individual packages of ION, using platform-specific Makefiles in the package subdirectories.  If you choose this option, be aware of the dependencies among the packages:

• Theici package must be built (make andmake install) before any other package.

• Thebp package is dependent ondgr and "ltp" andbssp as well asici.

• Thecfdp,ams,bss, anddtpc packages are dependent onbp.

• Therestart package is dependent oncfdp,bp,ltp, andici.

Also, be aware that these Makefiles install everything into subdirectoriesof /usr/local. To override this behavior, change the value of OPT in thetop-level Makefile of each package.

Additional details are provided in the README.txt files in the rootdirectories of some of the subsystems.

Note that all Makefiles are for gmake; on a freebsd platform, be sureto install gmake before trying to build ION.

• Tutorials, applications of Artificial Intelligence and IoT, and further details on ION capabilities can be found on theWiki pages.

• Videos and documents and links to videos of the Interplanetary Overlay Network course can be found on theNASA website.

• For details about changes regarding each ION release, please see theRelease Notes

The software and/or related materials are provided "AS-IS" withoutwarranty of any kind including any warranties of performance ormerchantability or fitness for a particular use or purpose (as setforth in UCC 2312-2313) or for any purpose whatsoever, for thelicensed product, however used.

In no event shall caltech/jpl be liable for any damages and/orcosts, including but not limited to incidental or consequentialdamages of any kind, including economic damage or injury toproperty and lost profits, regardless of whether Caltech/JPL shallbe advised, have reason to know, or in fact shall know of thePossibility.

User bears all risk relating to quality and performance of thesoftware and/or related materials.

Copyright 2002-2013, by the California Institute of Technology. ALLRIGHTS RESERVED. U.S. Government Sponsorship acknowledged.

This software and/or related materials may be subject to U.S. exportcontrol laws. By accepting this software and related materials, theuser agrees to comply with all applicable U.S. export laws andregulations. User has the responsibility to obtain export licensesor other export authority as may be required before exporting thesoftware or related materials to foreign countries or providingaccess to foreign persons.

The QCBOR code included is distributed with the following condition

Copyright (c) 2016-2018, The Linux Foundation.Copyright (c) 2018-2019, Laurence Lundblade.All rights reserved.

Redistribution and use in source and binary forms, with or withoutmodification, are permitted provided that the following conditionsare met:* Redistributions of source code must retain the above copyrightnotice, this list of conditions and the following disclaimer.* Redistributions in binary form must reproduce the abovecopyright notice, this list of conditions and the followingdisclaimer in the documentation and/or other materials providedwith the distribution.* Neither the name of The Linux Foundation nor the names of itscontributors, nor the name "Laurence Lundblade" may be used toendorse or promote products derived from this software withoutspecific prior written permission.

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