Project Title

Licklider Transmission Protocol - 5-year Review



Document Number



6.09 Delay Tolerant Networking Working Group

Document Type


Description of Document

This product of this project will be a revised LTP Blue Book. Changes proposed include removal of the "green" data transmission option, removal of the optional security extensions, and revision of the segment header structure for simpler implementation in hardware.

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

This is a 5-year review of a CCSDS standard. No similar review is being undertaken elsewhere in CCSDS or in IETF.


Book Editor


Book Editor Resources

5 work months

Prototype 1


Prototype 1 Resources

2 work months

Prototype 2


Prototype 2 Resources

5 work months

Prototype 3

Prototype 3 Resources



Monitor Only

Resource Comments

Resources, contributors, and monitors for this project have not yet been identified. The project is being posted in order for the DTN WG to begin tracking it in planning and scheduling.


Legend for Schedule Milestones
Orange Bullet = Required for Orange Books
Green Bullet = Required for Green Books
Magenta Bullet = Required for Magenta Books
Blue Bullet = Required for Blue Books
Note - Red Books are Draft Blue/Magenta Books

Schedule Milestones
Orange BookGreen BookMagenta BookBlue Book
Original Completion Date
(Date in M/D/YYYY format.)
(Date in M/D/YYYY format.)
Project ApprovedOrange BulletGreen BulletMagenta BulletBlue Bullet11/6/2020
Project Start DateOrange BulletGreen BulletMagenta BulletBlue Bullet1/25/2021
Internal WG Review
First Draft Circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet4/8/2021
First Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet6/1/2021
Second draft circulated to WGOrange BulletGreen BulletMagenta BulletBlue Bullet8/16/2021
Second Draft Comments DueOrange BulletGreen BulletMagenta BulletBlue Bullet9/13/2021
Final WB Submitted to AD for Further ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet10/8/2021
External Milestones
Secretariat Document ProcessingOrange BulletGreen BulletMagenta BulletBlue Bullet1/11/2022
First Agency ReviewMagenta BulletBlue Bullet3/21/2022
RID ResolutionMagenta BulletBlue Bullet4/17/2022
Secretariat Document Processing 2Magenta BulletBlue Bullet6/29/2022
Final Agency ReviewMagenta BulletBlue Bullet9/3/2022
RID ResolutionMagenta BulletBlue Bullet10/5/2022
First Prototype DevelopmentBlue Bullet8/21/2022
Second Prototype DevelopmentBlue Bullet8/21/2022
CMC ApprovalOrange BulletGreen BulletMagenta BulletBlue Bullet11/19/2022
Total Time to Complete
(in months)
Version: 223.0
Created at 5/30/2019 8:43 PM by Scott Burleigh
Last modified at 7/21/2023 11:10 AM by Robert Durst