1. DTN Network Management Scenarios and General Requirements Will Ivancic william.d.ivancic@nasa.gov 216-433-3494

2. DTN Scenarios D is for Delay D is for Disruption D is for Disconnected

3. Scenarios Deep Space Mars Relay Simple Sensor Networks Data Mule Rapid Disruption (Fades due to RF) Low Earth Orbiting Sensor Satellite Geostationary Bent Pipe Relay Satellite Unmanned Aeronautical Vehicles

4. Mars Relay Long Delay Short Delay DTN Bundle Agent

5. UAV via GEO Satellite DTN Bundle Agent DTN Bundle Agent DTN Bundle Agent RF Relay DTN Bundle Agent

6. Data Mule

7. Low Earth Orbiting Satellite

8. Network Management Monitoring and Measurement Debugging and Troubleshooting Performance profiles -- delay and throughput; disruption and connectivity Configuration Routing Security configurations (and policy) DTN-Tables ? (long term)  Applications (related to traffic generation for testing and monitoring purposes) General User Applications that can be use to test, stress and exercise the network (i.e. DTNtraceroute, DTNsend/receive, DTNperf, etc...) DTN useful applications (i.e DTNdatabase synchronization (DTNrsync), DTNmail, DTNchat ?, etc...)

9. Network Management Monitoring and Configuration General Requirements Local Network Management Remote Network Management Monitoring Bundle Processing System Characteristics Convergence Layers Multi-Homing Radios Processing Power Onboard Storage Configuration Routing Name Resolution Local and Network Time Security

10. Definitions Local Management ≡ Logged into the device locally or via Real-time access such as via a connected IP network Assume high bandwidth, no disruption and insignificant delay Remote Management ≡ Managed over a DTN network Handles Long Delays, Long Periods of Disruption, and Low Bandwidths

11. General Requirements Management and Configuration should work for all DTN environments High delay, long periods of disconnection, low bandwidth System may be multiple hops away and never reachable in a single hop System may not be synchronized Multiple security levels Secure Login and encrypted data transfer (i.e. SSH or TLS for local management, something yet to be defined for remote management) Monitoring - Modest Security Configuration - High Security Remote Management uses bundling Remote Configuration Incremental Test, Validation, restore/recovery

12. (Parking Lot) Issues / Comments/ Concerns For unsynchronized system Time-stamping data (relative time ?) Is Locking or partial locking of configurations needed? DTN Naming – We already have an issue with ipn vs dtn compatability.

13. Utilities – beginnings of NetMgt (Make utilities interoperable between ION and DTN-2) DTN-ping DTN-send/receive DTN-traceroute DTN-perf DTN-heartbeat DTN-email DTN-chat Bundle Count / Traffic Measurement (NEW Request)

14. NASA DEN Phase-0 Scenario Phase-0 Continuous Connectivity Static routing No BP Security Delay: Lunar 3 sec BW: 128kbps [>100Mbps] BP/LTP/Encap or BP/LTP/IP/Encap Delay: 100s msec? BW: 72/k/192k Story EVA sending some sort of telemetry (different kinds to APL and JPL) Understand that EVA data wouldn’t really go to APL/JPL BP/LTP/Encap or BP/LTP/IP/Encap? OhioU has TCPCL for ION? BW: 10Mbps Limit the amount of available storage (later)

15. DTN GW Rover Habitat Science Sensor 1 Mbps 256 kbps 128 kbps EARTH MOON L2 Relay Lunar Relay Always ON ? Intermittent Multiple Switched Ground Stations emulated as one single DTN GW International Partner #2 International Partner #1 Switched

16. DTN GW L2 Relay Habitat Lunar Relay Rover Sensor SW CS Real-time Control Plan Defined as part of Local Management CS Channel Simulator (Rate, BER and Connectivity) DTN Data Flow