Apr SLS-SLP WG Goal: Progress TM, AOS Space Data Link Protocol Pink Sheets to Blue (OID frame)* Hold due to FSH/Insert Zone/Security discussion Progress Encapsulation Service Pink Sheets (including SDLP Channel parameter) to Blue Progress Space Packet Protocol Pink Sheets to Blue book for APID defn. *(but locate pink sheets!) Progress the TC, AOS, TM, Prox-1, and SPP CRC pink sheets to Blue book* Hold due to FSH/Insert Zone/Security discussion Progress Space Link Identifiers Pink Sheet ( including deprecation of IPv4) to Blue Book Progress TC Space Data Link Protocol & COP-1 to Agency Review for Systematic Retransmission parameter Progress TC Space Data Link Protocol for CRC normalization and APID definition* Progress Prox-1 Space Data Link Protocol pink sheets to Agency Review (Source/Dest. Flag clarification) WG Status: Active X Idle ____ WG Summary Situation: status:OKCAUTIONPROBLEM comment:Good progress SLS-SLP WG REPORT

Apr WG Summary progress: We have accumulated several changes in pink sheets that are pending blue book updates – these are reflected in the resolutions. Technical solution was found to the wording of the new SDLP_Parmeter in the Encapsulation Service Pink Sheets. Consensus of WG was to add these changes with the previously approved CESG/CMC changes for a new CESG/CMC poll. Removal of IPV4 packet version number from Space Link Identifiers was accepted by the WG, since all agencies polled approve of the deprecation. Consensus of WG was to add these changes with previously approved CESG/CMC changes for a new CESG/CMC poll. Consensus of WG to advance COP-1 and TC Space Data Link Protocol to Agency Review for the systematic retransmission parameter (Note: other changes already pending for TC Space Data Link Protocol). However both TC green books to be studied for update Proximity-1 Source/Destination Flag text updated to reflect the description from both the receive and send side. Pink Sheets to go to Agency Review SLS-SLP WG REPORT

Apr WG Summary progress: Discussion on harmonizing FSH and Insert Zones in AOS, TC, TM, and Prox-1 occurred. NASA proposed that for at least AOS due to the need on Program Constellation, there is a sufficient need to place security Information into a new FSH for AOS (virtual channel based) and Insert Zone when security is appropriate for the entire Master Channel. SLS-SLP WG REPORT

Apr SLS-SLP WG (cnt’d) Problems and Issues: Several changes have piled up for AOS, TC, TM, SPP, Prox-1 specifications. When we update these documents we need to ensure that all approved updates occur at once. Conflict exists between NASA’s identified need to have a new FSH defined in the AOS Space Data Link Protocol to use for security and range safety data and the terming of this material as “immature” by ESA. SPP blue and green books do not belong to this WG. Apparently there are SPP pink sheets that no one can locate including the Secretariat. ESA has expressed concern that SPP pink sheets concerning APID definition needs to be expedited to blue. Request from DTN WG to add 2 PIDs to Space Link Identifiers Blue book received at this meeting. New Ids are not needed at this round of meetings. SLS WG REPORT

Apr SLS-SLP WG (cnt’d) Planning : Continue to work with SDLS WG on defining where Security will be inserted into the CCSDS Space Data Link Protocols New task assigned by NGU WG to define the data link layer protocol for File Upload application profile – requires Charter update SLS WG REPORT

Apr SLS-SLP WG (cnt’d) Resolutions : 1.Progress TM, AOS Space Data Link Protocol Pink Sheets to Blue (OID frame)* Hold due to FSH/Insert Zone/Security discussion? 2.Progress Encapsulation Service Pink Sheets (including SDLP_Channel parameter) to Blue (Note: CESG/CMC polling issue) 3.Progress Space Packet Protocol Pink Sheets to Blue book for APID defn. *(Note: but locate pink sheets!) 4.Progress the TC, AOS, TM, Prox-1 and SPP CRC pink sheets to Blue book* Hold due to FSH/Insert Zone/Security discussion? 5.Progress Space Link Identifiers Pink Sheet ( including deprecation of IPv4) to Blue Book (Note: CESG/CMC polling issue) 6.Progress TC Space Data Link Protocol to Agency Review for systematic Retransmission parameter 7.Progress COP-1 Specification to Agency Review for systematic Retransmission 8.Progress Prox-1 Space Data Link Protocol pink sheets to Agency Review (Source/Dest. Flag clarification) 9.Request SANA take on the responsibility of managing Space Link Protocol IDs and eventually all Link Layer protocol formats. SLS AREA REPORT

Apr TM Space Data Link Protocol (Tom already has these changes) ‘OID’ Frame redefinition CRC-16 implementation harmonization AOS Space Data Link Protocol (Tom already has these changes) ‘OID’ Frame redefinition CRC-16 implementation harmonization TC Space Data Link Protocol (Tom already has these changes) CRC-16 implementation harmonization Proximity-1 Coding & Synchronization Sub-Layer CRC-32 implementation harmonization Encapsulation Service (changes in the CWE under SLP – Fall Meetings 2009) Space Link Identifiers (changes in the CWE under SLP – Fall Meetings 2009) Space Packet Protocol Blue Book APID Definition CRC-16 implementation harmonization SLP Resolutions organized by Book