Blue Books: Recommended Standards

CCSDS Recommended Standards (Blue Books) define specific interfaces, technical capabilities or protocols, or provide prescriptive and/or normative definitions of interfaces, protocols, or other controlling standards such as encoding approaches. Standards must be complete, unambiguous and at a sufficient level of technical detail that they can be directly implemented and used for space mission interoperability and cross support. Standards must say very clearly, “this is how you must build something if you want it to be compliant”.

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File734x1b1c1.pdf
Document NumberCCSDS 734.1-B-1
Document TitleLicklider Transmission Protocol (LTP) for CCSDS
Issue Number1
Published DateMay 2015
Description

This Recommended Standard specifies the Licklider Transmission Protocol (LTP) and associated service for CCSDS. LTP provides optional reliability mechanisms on top of an underlying (usually data link) communication service.

The current version of this document contains all updates through technical corrigendum 1, dated January 2026.

Book TypeBlue Book
AreaSIS
Working GroupSIS-DTN
ISO Equivalent21080

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