NASA Space DTN Program Keith Scott SIS-DTN WG Wednesday Afternoon 28 October 2009SIS-DTN 1

Agenda Space DTN July 2009 Feb Q2 MarAprMay Q3 JunJulAug Q4 SepOctNov Q1 DecJan Q2Q3Q4 CY 2009CY 2010CY 2011 Q1Q2Q3Q4Q1 FebMarAprMayJunJulAugSepOctNovDecFebMarAprMayJunJulAugSepOctNovDecJan Concept Papers for BP and LTP CCSDS DTN Green Book Red-1 Books for BP and LTP Blue Books for BP and LTP Red-2 Books for BP and LTP Draft Red Books for BP and LTP JPL Flight Implementation-II GSFC Flight Implementation-I Network Management, Routing, Security User Requirements Documentation DTN Implementation to Cx Program? Security (BAB), BW constraints, Disruption Jan DEN Cap1 DEN Capability Demo 4 DEN Capability Demo 3 DEN Capability Demo 2 DINET-II Flight Demo Lunar Habitat Demonstration CoNNeCT Flight Demo Lunar Surface Scenario BioServe-1 CGBA-5 Basic connectivity; static routing ISS LEO Scenarios DTN Gateway at HOSC GSFC Flight Implementation-II Flight Systems Demonstration And Validation Specification And Standardization L1L2 T1 SpaceOps (tentative) T3 DTN Node at TDRSS WSC Desert RATS (tentative) T2 ION WG Protocol Engineering TDRSS Demos BioServe-2 CGBA-4 28 October 2009SIS-DTN 2

Flight Systems Maturing the JPL ION DTN implementation to common NASA-wide implementation Include in Goddard core Flight Executive Use common codebase across APL, Goddard, JPL, JSC missions More from Jane when she talks about the ION Working Group 28 October 2009SIS-DTN 3

Demonstration and Validation DTN supporting BioServe on ISS Operating 24x7 Getting operational experience 2 nd on-orbit DTN node due to become operational March 2010 DTN Experimental Network (DEN) Multi-center testbed Supports experimentation and validation of new capabilities - Performance in errored / delayed environment - Bundle Authentication Blocks (hop-by-hop security) Operations Scenarios - Lunar Habitat Scenario: Streaming video over DTN Tunnel (tested between JPL and JSC) 28 October 2009SIS-DTN 4

Demonstration and Validation DINET-I Flight Demonstration Report available DINET-II Flight Demonstration Operations in mid-November 2009 CFDP / DTN / LTP implementation DTN capabilities in TDRSS DTN at TDRSS Ground Station DTN over LTP over Encap over AOS Planning demo at SpaceOps October 2009SIS-DTN 5

Demonstration and Validation: Lunar Surface Motion Imagery Scenario

Protocol Engineering Network Management Have been working ‘SMTP-like’ approach: local monitoring and control coupled to DTN gateway for remote communications Basic MIB under review Routing Have been experimenting with Contact Graph Routing; used on DINET-I and –II Implemented in ION and soon in DTN2 Security Bundle Authentication Block implementation for ION, full Bundle Security Protocol implementation for DTN-2 Naming and Addressing ‘ipn’ scheme consistent with compressed bundle header encoding ipn://X.Y where X and Y are self-delimiting numerical values (auto-scaled integers) for node number (interface) and service number (port) Implemented in ION and soon in DTN2 28 October 2009SIS-DTN 7

Specification and Standardization Green Book continually revised Talk Thursday about additional requirements and operational scenarios Want to come to consensus on a schedule for completion Concept papers for protocol specifications distributed in July / August Step 1: Slap a service specification on the existing specifications Step 2: Revise specifications / service specifications in response to requirements, operational scenarios from October Green Book inputs Step 3: Testing and experimentation by agencies Step 4: Submit for Red-1 Status 28 October 2009SIS-DTN 8