1. SPACE INTERNETWORKING SERVICES (SIS) AREA
Bob Durst (AD)
Dai Stanton (DAD)
28 April 2009
22 October 2008 1 1

2. CURRENT GROUPS WITHIN AREA
SIS REPORT
CURRENT GROUPS WITHIN AREA
Space Packet Protocol Working Group
Asynchronous Message Service Working Group
IP Over CCSDS Working Group
Motion Imagery and Applications Working Group
Delay Tolerant Networking Working Group
Voice Working Group
28 April 2009
22 October 2008 2 2

3. UPDATE SIS REPORT B. ATTENDANCE METRICS
IPO WG
AMS WG
Voice WG
DTN WG
MIA WG
Plenary
Secretariat 1  1
BNSC 3
CNES 2
CSA
DLR
ESA 4
FSA
JAXA
USA 8 7 5 14 18
Total 12 11 22 25
Meeting Duration
1 day
2.5 days
Agency Diversity
UPDATE
*x/y x = registered; y = attended.
22 October 2008
28 April 2009 3 3

4. SUMMARY TECHNICAL STATUS
SIS REPORT
SUMMARY TECHNICAL STATUS
Space Packet Protocol WG
Goals:
Did not meet
Working Group Status:
Green Book awaiting disposition of NASA comments
Pink Sheets past agency review. Resolution to publish from SLS
Working Group Summary Situation:
Will move to dissolve when when Pink Sheets incorporated and Green Book published.
status: OK
CAUTION
PROBLEM
comment:
Completion expected this cycle
28 April 2009
22 October 2008 4 4

5. SIS REPORT Asynchronous Message Service WG Goals:
In joint meeting with SOIS, resolve any residual AMS/MTS alignment issues
Discuss interoperability testing plan and findings
Resolve any residual specification issues
Working Group Status:
AMS/MTS alignment satisfactory; two additional conformance classes requested (minimal and sub-minimal sets)
Interoperability testing completed, judged satisfactory by WG participants; test report to be updated with additional explanatory notes (APL, Goddard, JPL, Marshall)
All remaining specification issues (emerged in implementation) resolved by consensus
Working Group Summary Situation:
status: OK
CAUTION
PROBLEM
comment:
On schedule.
28 April 2009
22 October 2008 5 5

6. AMS WG Findings
The AMS WG reiterates its recommendation that, funding permitting, ESA/SciSys – JHU/APL interoperability testing over SOIS packet service begin as soon as feasible. Completion of this testing is not a precondition to formal standardization of AMS, as interoperation between independently developed implementations has already been successfully demonstrated, but it is highly desirable. Action on ESA to confirm resources.
The WG agrees to divide the Basic Message Exchange capability set into two sets – send/receive, query/reply – and add two bare- minimum conformance classes: send/receive only, with and without MAMS. This will fully align AMS with the current MTS service definition.
The WG agrees that development of the AMS specification is complete. Upon completion of some copy editing and the addition of new conformance classes as noted above, the AMS Red Book will be ready for final Agency review and poll. The WG asks the Area Director to issue a resolution to this effect at his convenience.
28 April 2009 6

7. SIS REPORT IP Over CCSDS WG Goals:
Develop a CCSDS recommended best practice document for how to transfer IP datagrams over the 4 CCSDS link layer protocols.
New – Develop IP in Space Internetworking Magenta and Green books
Working Group Status:
IP over CCSDS Red-3 completed Agency Review
NASA-RID on IP over ENCAP to be resolved in SLS-SLP meeting Fri PM
IP over CCSDS on hold until SLS-SLP depreciates IPv4 in link layer documents and interoperability testing between NASA/JPL and GSFC done. Expect this task to be completed by Fall 09 meeting.
New task: IP in Space Internetworking Magenta and Green Books (resolution by CESG meeting)
Working Group Summary Situation:
status: OK
CAUTION
PROBLEM
comment:
Good
28 April 2009
22 October 2008 7 7

8. SIS AREA REPORT Goals: Motion Imagery and Applications WG
Review and edit draft Green book text
Plan Fall 09 meeting planning for beginning work on Magenta Book
WG Status: Active
WG Summary Situation: Excellent active participation, consensus on current and future direction
WG Summary progress:
Successfully testing HDTV MPEG-4 link between HOSC and Col-CC
Could be beginning of test bed work for the future
Reviewed current draft Green Book content and reviewed new content provided by International partners
Agreed on general direction toward development of Magenta Book
On schedule for completion of Green Book
status: OK
CAUTION
PROBLEM
comment:
03/06/2018

9. SIS AREA REPORT MIA WG (cnt’d) Planning :
Working on merging content from partners into single CCSDS Green Book format
Planning on coordinating with selected CCSDS groups to hold joint “education” meetings during Fall CCSDS meetings as a starting point for Magenta Book development
Beginning to think about proto-typing in late 2010/2011 time frame
03/06/2018

10. Probable 6 month schedule slip to Blue Books (Fall 2010)
SIS REPORT
Delay Tolerant Networking WG
Goals:
Review and finalize draft Green Book.
Start development of DTN protocol specifications
Discuss additional WG documents and way forward
Working Group Status:
Met jointly with representatives from SOIS and identified areas of interface between DTN and SOIS onboard services. Virtual
Reviewed draft Green Book, identified some new material on resource management; expect submission to CESG within 2 months
Achieved agreement on RFC5050 and RFC5326 as base DTN protocols and goals of maintaining CCSDS interoperability with terrestrial versions
Planned next steps for protocol spec development – WG to generate white books by July; modify schedule for Blue Book finalization to Fall of 2010
Note to CESG: WG may submit a charter modification to generate a detailed architecture Green Book (target completion date +1year)
Working Group Summary Situation:
status: OK
CAUTION
PROBLEM
comment:
Probable 6 month schedule slip to Blue Books (Fall 2010)
28 April 2009 10 10

11. SIS REPORT Voice WG Goals:
Out of cycle meeting to accommodate meeting schedules and constraints
Develop Green Book second draft
Incorporate international contributions
Working Group Status:
Green Book second draft completed and distributed as scheduled
Further actions assigned for additional Green Book content
Team is reviewing second draft
Working Group Summary Situation:
status: OK
CAUTION
PROBLEM
comment:
On Schedule.
28 April 2009
22 October 2008 11 11

12. Cross Area Meetings for Spring ‘09
SIS-SOIS: Identified areas of interface between DTN and SOIS onboard services. ‘Soft’ recommendation for SOIS to consider standardized ‘transponder access’ service (device virtualization of communication resources) that could be accessed by DTN.
SIS-SOIS: Resolved the only residual AMS/MTS alignment issue, the need to identify an even-more-minimal capability set as the basis for two new minimal conformance classes: send/receive only, with and without MAMS. Recommended that interoperability testing between the ESA/SciSys and JHU/APL implementations of AMS, over SOIS packet service, should begin as soon as feasible.
28 April 2009
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13. Forthcoming Resolutions from SIS to CESG
Close moribund working groups.
SPP Pink Sheet incorporation and Blue Book upissue. SPP Green Book publication.
AMS Red Book to go for final Agency review and poll. Followed, in this cycle for resolution for AMS Blue and Green Book publication and WG shutdown.
DTN GB for CESG review followed by agency review.
28 April 2009
22 October 2008 13

14. D. SUMMARY: MAJOR ACCOMPLISHMENTS, S’09 MEETING AMS nearing completion
SIS REPORT
D. SUMMARY: MAJOR ACCOMPLISHMENTS, S’09 MEETING
AMS nearing completion
DTN now has active multi-agency participation. Rationale Green Book nearing completions and scope of blue books agreed
Voice/video?
28 April 2009
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