[Cesg-all] CCSDS Review of CCSDS 732.1-P-2.1, Unified Space Data Link Protocol

[CCSDS Rapporteur]

Control Number: PRP 23-21

The following draft CCSDS Recommended Standard has been placed on line for CCSDS Agency review:

     CCSDS 732.1-P-2.1. Unified Space Data Link Protocol. Pink 
                        Sheets. Issue 2.1. September 2023.

DOCUMENT DESCRIPTION:  This CCSDS Recommended Standard specifies the Unified Space Data Link Protocol (USLP) for use by space missions over space-to-ground, ground-to-space, or space-to-space communications links. The current draft update adds VC Packet and VC Access services, changes the maximum number of frames per CLTU from one to greater than one to match the Telecommand specification, and adds to the security section a table, a diagram, and text concerning the order of COP to SDLS, similar to the Telecommand specification.

The due date for receipt of review comments by the CCSDS Review Coordinator is 1 November 2023.  Area Directors and WG/BOF Chairs may submit review comments directly to the CCSDS Review Coordinator.  More information is available at the Web site identified below.

The review document, in Portable Document Format (PDF), and associated review materials are available for downloading at the following location:

     https://public.ccsds.org/review/CCSDS%20732.1-P-2.1/default.aspx

NOTES

1  Per CMC Action Item CMC-A-2007-10-05, agency reviewers are reminded to
   review for compliance with the CCSDS Publications Manual as well as
   technical content.

2  Per CESG Resolution CESG-R-2008-10-006, the CESG no longer conducts
   pre-Agency-review reviews but is instead expected to participate in
   Agency reviews when they are announced.