Standardizing DTN for Space Communications

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1 Standardizing for Space Communications Keith Scott MITE Corporation Leigh Torgerson Jet Propulsion Laboratory, California Institute of Technology May 18, 015 NOTICE This work was performed for the U.S. Government under Prime Contract No. NNN1AA01C and JPL Contract No and is subject to FA (6/87) ights in Data General, and Article GP-51, ights in Data General, respectively. Approved for public release, distribution unlimited; MITE P All rights reserved.

2 Outline CCSDS Overview Space Internetworking Timeline SISG work Considerations (CCSDS Space Packets, IP, ) Conclusions eport, Operations Concept CCSDS Work Completed (or nearly completed) SSI Architecture Green Book Licklider Transmission Protocol for CCSDS (Profile of FC56) Bundle Protocol for CCSDS (profile of FC5050) Current and Future Work Contact Graph outing (routing on scheduled graphs) Bundle Protocol Security Network Management 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

Consultative Committee for Space Data Systems (CCSDS) CCSDS An Agency-Led International Committee Currently 11 Member agencies Currently 9 Observer Agencies Agencies represent 7 nations (and European

3 Consultative Committee for Space Data Systems (CCSDS) CCSDS An Agency-Led International Committee Currently 11 Member agencies Currently 9 Observer Agencies Agencies represent 7 nations (and European orgs) Currently 118 Commercial Associates Also functions as an ISO Subcommittee TC0/SC1 - Space Data & Info Transfer Systems epresents 0 nations e e e MEMBE AGENCIES 015. All rights reserved. Approved for public release, distribution unlimited; MITE P Figure from CCSDS Overview Presentation ASI/Italy CNES/France CNSA/China CSA/Canada DL/Germany ESA/Europe FSA/ussia INPE/Brazil JAXA/Japan NASA/USA UKSA/UK OBSEVE AGENCIES ASA/Austria BFSPO/Belgium CAS/China CAST/China CLTC/China CSIO/Australia DCTA/Brazil DNSC/Denmark EUMETSAT/Europe EUTELSAT/Europe GISTDA/Thailand HNSC/Greece IKI/ussia ISO/India KAI/Korea KFKI/Hungary MOC/Israel NCST/USA NICT/Japan NOAA/USA NSAK/Kazakhstan NSPO/Taiwan SANSA/South Africa SSC/Sweden SSO/Switzerland SUPACO/Pakistan TsNIIMash/ussia TUBITAK/Turkey USGS/USA

4 CCSDS Objectives 4 The Essential Message CCSDS: Advancing Technology With International Agreements To Use That Technology CAPABILITY and COOPEATION 015. All rights reserved. Approved for public release, distribution unlimited; MITE P Figure from CCSDS Overview Presentation

CCSDS Overview End-to-End Architecture 5 Six

Group (producing standards) Birds-Of-a-Feather

Security Delta-DO Timeline Data Exchange

Guidelines MISSION CONTOL CENTE End Users

Users Another Organization s Assets Spacecraft

Space Link Protocols Next Generation Uplink

Services CS Service Management CS Transfer

Space Internetworking Services Motion Imagery

release, distribution unlimited; MITE P 15-184

5 CCSDS Overview End-to-End Architecture 5 Six Technical Areas, Twenty-One Teams Working Group (producing standards) Birds-Of-a-Feather stage (pre-approval) Special Interest Group (integration forum) Typical Mission Profile One Organization s Assets Systems Engineering Security Delta-DO Timeline Data Exchange Systems Architecture XML Standards and Guidelines MISSION CONTOL CENTE End Users Applications/Archives MISSION CONTOL CENTE End Users Another Organization s Assets Spacecraft Onboard Interface Services Onboard Wireless WG Application Supt Services (incl. Plug-n- Play) Space Link Services F & Modulation Space Link Coding & Sync. Multi/Hyper Data Compress. Space Link Protocols Next Generation Uplink Space Data Link Security Cross Support Services CS Service Management CS Transfer Services Cross Supt Service Arch. Space Internetworking Services Motion Imagery & Apps Delay Tolerant Networking Voice CFDP evisions 015. All rights reserved. Approved Optical for Coding public and Mod release, distribution unlimited; MITE P Figure from CCSDS Overview Presentation Mission Ops & Info Mgt Services Data Archive Ingestion Navigation Spacecraft Monitor & Control Telerobotics Mission Planning and Scheduling

6 6 Space Internetworking Strategy Group Working group under Interagency Operations Advisory Group (IOAG) Provide recommendations concerning a strategy for internetworking in space Charter: The IOAG resolves to form a Space Internetworking Strategy Group to reach international consensus on a recommended approach for transitioning the participating agencies towards a future network centric era of space mission operations. The group will focus on the extension of internetworked services across the Solar System, including multi-hop data transfer to and from remote space locations and local networked data interchange within and among the space end systems. SISG Final eport (November 008) Transition future space mission operations to rely on an end-toend internetworked model of data communications. Use or IP as appropriate 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

8 CCSDS Standards Schedule 8 SISG eport First ION Open- Source elease EO-1 Demonstration ISS Change equest (C) 0179 Delay Tolerant Networking () on Joint Station LAN FC 5050 ESA OPSCOM-1 IETF WG Formed on ISS Operational (Expected) equirements LTP BP SSI Architecture CG Security Network Management First Hop / Last Hop Streaming Neighbor Discovery Dynamic outing BP Update 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

9 1 1 edparteception. indications edparteception. indication Transaction. request 1 Y Transaction. requests 1 CCSDS Profile of LTP 9 Based on FC56 Limits ranges of some SDNV fields (session numbers, checkpoint and report serial numbers) Allows for Authentication ONLY from LTP Security (no cookies) LTP Service Data Aggregation ed (reliable) LTP data only educe overhead when sending multiple small blocks Sending SDA Client 1 4 InitialTransmission Complete.indication SDA LTP Client 1, 1,, 1, 4 SessionStart.indication InitialTransmission Complete.indication TransmissionSession Complete. indication Sending LTP Engine CP Checkpoint S eport Segment A eport Acknowledgment EOP End of ed Part EOB End of Block X, 1 1, 1,, 1, 4 LTP Block containing data to client service ID Y LTP SDA Capsule to client service ID X LTP Block containing LTP Service Data Aggregation Capsules eceiving LTP Engine SessionStart.indication 1, 1,, 1, 4 edparteception. indication SDA LTP Client 1 4 eceiving SDA Client 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

10 CCSDS Profile of BP 10 Based on FC5050 Compressed Bundle Header Encoding (ipn naming scheme) Extended Class of Service Block Critical bundles forwarded over all paths (flooding) Flow labels Support for streaming applications 55 sub-levels of priority (extends BP class-of-service (expedited)) Aggregate Custody Signal Mechanisms (Custody Signal Compression) Convergence Layer Adapters Delay-Tolerant Payload Conditioning (TCP for ) In-order delivery End-to-end positive acknowledgment End-to-end retransmission (above custody transfer) Duplicate suppression Aggregation of small bundles into larger payloads to reduce overhead Application-controlled elision of redundant data 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

11 Current and Future Work Contact Graph outing 11 Traditional outing Scheduled outing (with slotted time) D 4 D S 5 S CG is not a routing protocol per se (no protocol for exchanging schedules, though one is being developed) Need standardization of decision-making process (for forwarding) for consistency of routing 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

12 1 Far Future outing: Building Contact Plans Figures from Operations Concept for a Solar System Internetwork (SSI), October All rights reserved. Approved for public release, distribution unlimited; MITE P

13 Current and Future Work BP Security for CCSDS 1 Adapt the Bundle Security Protocol for CCSDS CCSDS version of BP is based off of FC5050 CCSDS will track IETF SBSP developments and standardize something close Can t leverage changes to base BP to support security Active work item in CCSDS SIS- Working Group 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

14 Current and Future Work Network Management 14 Delay-Tolerant Network Management Protocol (MP) The SNMP of Oriented towards: Periodic reporting (telemetry) Anomaly reporting (If [Conditions] Send [Stuff] and Do [Other Stuff] Other Network Management Components Database Data ingest from multiple sources Cross Support Scheduling APIs for data output Emergency Ops Node Node Node MP MP MP Agt non- non- S/C non- S/C telemetry S/C telemetry telemetry USE SPACECAFT SCaN SCaN systems ESA or systems SCaN systems COMM LINK SEVICES LINK PLANNING LINK LINK PLANNING PLANNING S/C S/C Ops Ops S/C Teams Ops Teams Teams S/C OPEATOS Payload Payload Ops & Ops Payload & Science Ops & Science Science N I S N DSN Scheduling DSN Scheduling Link inputs Scheduling inputs input processing SCT Scheduling SCT Scheduling SCT inputs Scheduling inputs input processing (bundles) (BS) (EVs) Link Status data Link data processing Link Status data processing (e.g.dsn SQA) Node config and initialization management tool CG management NMC Node MP Mgr (NMC Admin Node) node node rpts OOB rpts node rpts BSs MP reports telemetry telemetry extract telemetry extract extract L&G or SLE SM commands generated db command history record creator db record creator db record db record creator creator db record db record creator db record creator creator db record db record creator db record creator creator NM&C database(s) -MP GUI middleware db Push Server db Query I/F db command history record creator SSH cmds to land nodes MP Mgr Command Line Display MP GUI Display BS and log Displays Node topology and Link Status Displays NM&C Database Query GUI Admin emote Logins SCIENCE OPS Input processing Ops Database(s) Display and output processing bundles SLE SM et al source: eocsw_plus_dtnmp_v.curio / L.Torgerson Legacy TLM Station Monitor Data 015. All rights reserved. Approved for public release, distribution unlimited; MITE Figure P from Leigh Torgerson, JPL

Multi-Center JPL/JSC/MSFC CCSDS-compliant Space Data System (SDS) Overview

9 This SDS Provides a prototype for Deep Space Network automation based on

Test Lab@JPL DSN Operations Center Sim Space-to-Ground Comm Link Sim 4 sec.

Approved (slide by for Tom public ich, release, JSC & distribution Leigh

end-toend on CCSDS international standards: Delay / Disruption Tolerant

Message Service Spacecraft Monitoring and Control CCSDS File Delivery

15 Multi-Center JPL/JSC/MSFC CCSDS-compliant Space Data System (SDS) Overview 15 SCaN DSN with DSOC as ISP MPCV Hardware / Software ipas Lab, JSC Bldg. 9 This SDS Provides a prototype for Deep Space Network automation based on CCSDS standards Telemetry Downlink Command & File Transfer Uplink Protocol Test Lab@JPL DSN Operations Center Sim Space-to-Ground Comm Link Sim 4 sec. light time / % error rate in current 4/7 ipas use 015. All rights reserved. Approved (slide by for Tom public ich, release, JSC & distribution Leigh Torgerson, unlimited; JPL) MITE P The only SDS prototype based end-toend on CCSDS international standards: Delay / Disruption Tolerant Networking Bundle Protocol Licklider Transmission Protocol Asynchronous Message Service Spacecraft Monitoring and Control CCSDS File Delivery Protocol This SDS will raise the TL of all of these protocols. PTL@JPL HOSC@MSFC OTF@JSC Bldg. 0

Future Work First Hop / Last Hop Communications 16 A standard

for spacecraft in distress Enable link-layer communications

Protocol) Link-Layer Communications 015. All rights reserved.

16 Future Work First Hop / Last Hop Communications 16 A standard application that implements a BP tunnel for data / commands for spacecraft in distress Enable link-layer communications when the target spacecraft s networking stack is down (Bundle Protocol) Link-Layer Communications 015. All rights reserved. Approved for public release, distribution unlimited; MITE P

18 18 Applications needing only linklocal communications Applications needing routed comms in lowdelay, connected environments Applications needing routed comms in possibly intermittentlyconnected environments Some applications may choose to use multiple modes of communication. IP Packets Bundles OSI Layer Space Packets Encap Packets AOS TC/TM Prox-1 OSI Layer,.5 Phy1 Phy PhyN OSI Layer All rights reserved. Approved for public release, distribution unlimited; MITE P Figure from SISG Phase I eport Final, 15 October 010

19 Simple planetary cases: Agencies overs Surface relays Orbital relays Even this basic scenario Is simply complicated Single Spacecraft, Single Data Link Space Packets IP IP Close and wellconnected

19 19 Simple planetary cases: Agencies overs Surface relays Orbital relays Even this basic scenario Is simply complicated Single Spacecraft, Single Data Link Space Packets IP IP Close and wellconnected network of spacecraft Control Center IP IP Distant but locally wellconnected network of spacecraft SLE Control Center Control Center SLE Distant and intermittently connected network of spacecraft 015. All rights reserved. Approved for public release, distribution unlimited; MITE P Figure from SISG Phase I eport Final, 15 October 010

CCSDS Report. Mike Kearney CCSDS Management Council Chairman CCSDS General Secretary NASA MSFC EO

CCSDS Report. Mike Kearney CCSDS Management Council Chairman CCSDS General Secretary NASA MSFC EO CCSDS Report Mike Kearney CCSDS Management Council Chairman CCSDS General Secretary NASA MSFC EO-01 256-544-2029 Mike.Kearney@nasa.gov March 2008 CCSDS Overview The goal: For Space Data Systems, enhance