1. NASA AES DTN Status Keith Scott CCSDS Meetings, Spring 2016
Approved for Public Release; Distribution Unlimited. Case Number
NASA AES DTN Status
Keith Scott
NOTICE: This software / technical data was produced for the U.S. Government under Prime Contract No. NNH16PB26P
CCSDS Meetings, Spring 2016

2. NASA SCaN and AES Activities
International Standardization
Prototyping And
Infusion
Development of requirements for Internetworking in space
Standardization of DTN protocols for CCSDS
Implementations targeted at AES project needs
DTN on the International Space Station
Advanced capability prototyping
Information from:

3. AES Project Status
Acknowledgements: this information drawn from a number of AES project participants.
Implementations
ION
3.4.1 Release
Future plans
Network Management
Standardization
RFC5050bis in IETF
Draft(s) out (bpbis, cbor encoding)
Security
Security drafts to IETF (bpsec, suite-b ciphersiutes, suite-b profile, security practices)
AMP drafts to IETF (ama, amp (expired), adm-bp)
DTN Development Kits
Now available as ’raw’ CORE scenarios or bootable ISO with CORE, ION, scenarios
Transitions / Demonstrations
ISS / Telescience Resource Toolkit (TReK) [Separate presentation Friday]
KARI DTN Experiment [Separate presentation Friday]
Core Flight Software (CFS)
Integrated Power Avionics and Software (iPAS)
IRIS radio (cubesats)
Future DTN support at DSN stations

4. Network Management
Working from Asynchronous Management Protocol (AMP) drafts in IETF
Decouple Data Ingest from Display via SQL database
Could ingest other information such as link conditions, CSTS data, etc.
Focus is on the APIs and capabilities more than the actual GUI
Provide exemplar to demonstrate capabilities
Facilitate consumption of BPNM data by other processes (e.g. OpenNMS)

5. IETF Standardization
The NASA AES DTN Project is supporting participation in the IETF DTN WG
Revised Bundle Protocol Specification
Bundle Protocol Security (BPSec) [Basis for the current CCSDS BP Security Document]
Pushing to include Network Management based on Asynchronous Management Protocol (AMP)
IETF DTN WG scheduled for Monday during the CCSDS plenary
CCSDS Impacts
We believe the updated BP can be gatewayed into the current BP (so CCSDS investment in implementations is preserved; supports a gradual transition)
The actual wire format is less of an issue than the SSI/DTN concepts
Continue to plan on including the updates to BP in the first reasonable CCSDS update cycle for BP

6. DTN Development Kit
Set of scenarios in the Common Open Research Emulator (CORE) that have the characteristics of real mission problems:
Rate mismatches between links along the path
Scheduled intermittent connectivity (with unplanned missed opportunities)
Asymmetric paths (some ground stations are receive-only) …
Scenarios can be used to demonstrate the workings / benefits of DTN
New scenarios can be generated to more closely represent actual missions
Available as a set of scenarios or as an Ubuntu ISO image with CORE, ION, scenarios pre-loaded.

7. Transitions / Demonstrations
ISS
Kelvin Nichols and/or Lee Pitts will provide a status update on Friday
Core Flight Software (CFS)
Prototyping an implementation that incorporates DTN into CFS
Gateway application
More tightly integrated into CFS’ Telemetry Input / Command Output modules
Advantage: Make BP a native part of missions that use CFS

8. Transitions / Demonstrations: iPAS
Demonstrate DTN as a component in a realistic demonstration that includes:
CFS
Multiple nodes / routing
Multiple application types (streaming and non- streaming)
Network management
Planned for end of FY16

9. Transitions / Demonstrations: Iris Radio
Iris uses a hardware slice architecture and reconfigurable software and firmware enabling extension and adaptation to new capabilities. Among those now planned are: Radio Science support (atmospheric and media measurements and occultations, gravity fields, radars, and radiometers); additional frequency bands (Ka-, S-, UHF); Disruption/Delay Tolerant Networking (DTN); proximity operations (at other planets such as Mars); Near Earth Network (NEN) compatibility; and Space Network (SN) compatibility
From:

10. DTN Support at DSN Stations
NASA is investigating costs / requirements to provide DTN support in the DSN
At stations
At JPL
Working with Morehead State University to prototype DTN capabilities at ground stations

11. Questions?