Projects

Overview
Project Title	Space Link Extension—Internet Protocol for Transfer Services, Recommended Standard, Issue 2
Approval	Approved
Document Number	913.1
Charter	3.06 Cross Support Transfer Services Working Group
Document Type	Blue
Description of Document	The Space Link Extension (SLE) Reference Model identifies a set of SLE Transfer Services that enable missions to send forward space link data units to a spacecraft and to receive return space link data units from a spacecraft. The SLE Transfer Service Recommended Standards specify the operations necessary to provide the transfer service, the parameter data, the behaviors that result from the invocation of each operation. However, they deliberately do not specify the methods or technologies required for communications. The purpose of this Recommended Standard is to define a protocol for transfer of SLE Protocol Data Units (PDUs) defined in the SLE Transfer Service Recommended Standards using the Internet protocols TCP and IP for data transfer and the Abstract Syntax Notation One (ASN.1) for data encoding. This protocol is referred to as the Internet SLE Protocol One (ISP1).
Applicable Patents	There are no patent issues for this technology that are known by the CCSDS community
Patent Comments
Survey of Similar Standards Documents or Projects Undertaken in Other Bodies and elsewhere in CCSDS
Resources
Book Editor	ESA
Book Editor Resources	Holger Dreihahn ( NOTE: The work is limited to Pink Sheets.)
Prototype 1	Not Required
Prototype 1 Resources	Prototyping is not required for the set of pink sheet updates.
Prototype 2	Not Required
Prototype 2 Resources	Prototyping is not required for the set of pink sheet updates.
Prototype 3
Prototype 3 Resources
Contribute	ESA, NASA
Monitor Only	CNES, DLR
Resource Comments

Schedule

Legend for Schedule Milestones = Required for Orange Books = Required for Green Books = Required for Magenta Books = Required for Blue Books Note - Red Books are Draft Blue/Magenta Books Schedule Milestones	Original Completion Date (Date in M/D/YYYY format.)	Comments (Date in M/D/YYYY format.)
Project Approved	12/19/2014
Project Start Date	1/15/2015
Internal WG Review
First Draft Circulated to WG	1/23/2015
First Draft Comments Due	2/2/2015
Second draft circulated to WG	2/16/2015
Second Draft Comments Due	2/23/2015
Final WB Submitted to AD for Further Processing	2/27/2015
External Milestones
Secretariat Document Processing	3/10/2015
First Agency Review	4/6/2015
RID Resolution	6/8/2015
Secretariat Document Processing 2	6/30/2015
Final Agency Review	7/30/2015
RID Resolution	9/1/2015
First Prototype Development	9/2/2015	Prototype Not Needed - Place holder date
Second Prototype Development	9/2/2015	Prototype Not Needed - Place holder date
CMC Approval	9/18/2015	CMC Approved
Total Time to Complete (in months)	8