P802.1ASed – Fault-Tolerant Timing with Time Integrity

This amendment specifies protocols, processes, procedures, functions, mechanisms, and managed objects to enable fault-tolerant timing by increasing the availability of the time and adding time integrity. This is achieved using two or more generalized Precision Time Protocol (gPTP) domains, multiple time distribution paths, the local oscillator clock, and a time selection function with individual processes for times that have interdependencies and times that do not have interdependencies. Fault-tolerant timing includes fault-tolerant time generation and distribution.

Current Status

StatusWork Group Ballot (ballot closed)
Current DraftD2.0 (December 13, 2024)
PAR & CSDFull title: Draft Standard for Local and Metropolitan Area Networks: Timing and Synchronization for Time-Sensitive Applications — Amendment: Fault-Tolerant Timing with Time Integrity
PAR (Approved: 2024-09-26; Expires: 2028-12-31)
CSD
EditorAbdul Jabbar
Web pageTim Wood

Archive

DateDocument
23 January 2025802-1ASed-d2-0-pdis-v03.pdf
14 November 2024802-1ASed-d1-0-dis.pdf
08 November 2024802-1ASed-d1-0-pdis-v01.pdf

The above list includes only the latest version of (proposed) dispositions. See the project folder for a complete list). The dates listed are the website file dates; they may differ from the creation dates in the documents.

Contributions

Important NOTICE on contributions.

DateDocument
2025-02-11P802.1ASed Editor’s Report
ed-jabbar-d2-0-wg-ballot-editors-report-0225-v05.pdf
2025-02-09Fault detection and Fault tolerance with TSF and MVTISA in P802.1ASed Draft 2.0
ed-jabbar-tse-fttm-analysis-0225-v01.pdf
2025-01-20FTTM Simulator
ed-tse-fttm-simulator-01.xlsx
2024-11-14P802.1ASed Editor’s Report
ed-jabbar-d1-0-tg-ballot-editors-report-1104-v02.pdf
2024-09-18Fault-Tolerant Grandmaster Clock Synchronization Needs for Highly-Reliable Systems
(ed-finnegan-FT-GM-Sync-0924-v01.pdf)
2024-09-18Text contribution
(ed-tse-draft-text-contribution-0924-v01.pdf)
2024-07-16FTTM Change Summary
(ed-tse-FTTM-change-summary-0724-v01.pdf”)
2024-07-16Text contribution
(ed-tse-draft-text-contribution-0724-v01.pdf)
2024-06-05FFTM Change Summary for Comment Resolution
(ed-tse-FTTM-change-summary-0624-v01.pdf)
2024-06-05Text contribution
(ed-tse-draft-text-contribution-0624-v01.pdf)

The above list includes only the latest version of updated documents and omits those superseded by subsequent discussion or inclusion in the current draft.

Please contact the Editor if you have comments to this page.

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