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P802.1AS-Rev – Timing and Synchronization for Time-Sensitive Applications

Note: this revision project supersedes and incorporates material developed in the  802.1ASbt amendment.

This standard specifies the protocol and procedures used to ensure that the synchronization requirements are met for time-sensitive applications, such as audio, video, and time-sensitive control, across networks; for example, IEEE 802 and similar media. This includes the maintenance of synchronized time during normal operation and following addition, removal, or failure of network components and network reconfiguration. It specifies the use of IEEE Std 1588 specifications where applicable in the context of IEEE Std 802.1Q. Synchronization to an externally provided timing signal (e.g., a recognized timing standard such as UTC or TAI) is not part of this standard but is not precluded.

This standard enables stations attached to bridged LANs to meet the respective jitter, wander, and time synchronization requirements for time-sensitive applications. This includes applications that involve multiple streams delivered to multiple endpoints. To facilitate the widespread use of bridged LANs for these applications, synchronization information is one of the components needed at each network element where time-sensitive application data are mapped or demapped or a time-sensitive function is performed. This standard leverages the work of the IEEE 1588 Working Group by developing the additional specifications needed to address these requirements.

Current Status

Status Submitted to IEEE SA RevCom
Current Draft D8.3 (08 Oct 2019)
PAR & CSD Full title: Standard for Local and Metropolitan Area Networks – Timing and Synchronization for Time-Sensitive Applications
PAR approved 16 Feb 2015 (modified 28 Sep 2017), expires 31 Dec 2019.
CSD
Editor Geoff Garner

Archive

Date Document
09 Sep 2019 802.1AS-REV, Draft 8.1, SB comment disposition, Revision 1
19 Aug 2019 802.1AS-REV, Draft 8.1 (Sponsor Ballot recirculation #1)
Base your ballot comments on this version.
19 Aug 2019 802.1AS-REV, Draft 8.1 with change marks (Sponsor Ballot recirculation #1)
Use this draft for reference only.
19 Aug 2019 802.1AS-REV, Draft 8.0, SB comment disposition, Revision 6
16 Jan 2019 802.1AS-REV, Draft 8.0 (Sponsor Ballot)
17 Jan 2019 802.1AS-REV, Draft 7.5 WG comment disposition
18 Dec 2018 802.1AS-REV, Draft 7.5 (WG #3 recirculation #3)
17 Dec 2018 802.1AS-REV, Draft 7.4 WG comment disposition
29 Nov 2018 802.1AS-REV, Draft 7.4 (WG #3 recirculation #2)
13 Sep 2018 802.1AS-REV, Draft 7.3 WG comment disposition (v1)
02 Aug 2018 802.1AS-REV, Draft 7.3 (WG #3 recirculation #1)
01 Aug 2018 802.1AS-REV, Draft 7.2
18 Jun 2018 802.1AS-REV, Draft 7.0 WG comment dispositions
29 Mar 2018 802.1AS-REV, Draft 7.0 (WG #3)
13 Mar 2018 802.1AS-Rev, Draft 6.0 WG comment dispositions
13 Dec 2017 802.1AS-Rev, Draft 6.0 (WG #2)
29 Oct 2017 802.1AS-Rev, Draft 5.1
06 Sep 2017 802.1AS-Rev, Draft 5.0 WG comment dispositions (v1)
12 June 2017 802.1AS-Rev, Draft 5.0 (WG #1)
18 May 2017 802.1AS-Rev, Draft 4.5 TG comment dispositions
10 Feb 2017 802.1AS-Rev, Draft 4.5 (TG)
19 Jan 2017 802.1AS-Rev, Draft 4.4
13 Jan 2017 802.1AS-Rev, Draft 4.3
21 Nov 2016 802.1AS-Rev, Draft 4.2 TG comment dispositions
07 Oct 2016 802.1AS-Rev, Draft 4.2 (TG)
08 Sep 2016 802.1AS-Rev, Draft 4.1
22 Jul 2016 802.1AS-Rev, Draft 4.0
13 Jul 2016 802.1AS-Rev, Draft 3.0 TG comment dispositions
29 Apr 2016 802.1AS-Rev, Draft 3.0 (TG)
13 Mar 2016 802.1AS-Rev, Draft 2.0 TG comment dispositions (v1)
09 Oct 2015 802.1AS-Rev, Draft 2.0 (TG)
11 Sep 2015 802.1AS-Rev, Draft 1.0 TG comment dispositions
15 May 2015 802.1AS-Rev, Draft 1.0 (TG)
26 Feb 2015 802.1AS-Rev, Draft 0.9
09 Jan 2015 802.1AS-Rev, Draft 0.8

Contributions

Please see the public documents repository for presentations on this topic

Date Document
2019 documents
09 Sep 2019
08 Jul 2019
01 Jul 2019
25 Jun 2019
04 Jun 2019
29 May 2019
13 May 2019
29 Apr 2019
29 Apr 2019
29 Apr 2019
25 Mar 2019
25 Mar 2019
11 Mar 2019
11 Mar 2019
AS‐Rev pathTrace issue — Christophe Mangin
11 Mar 2019
2018 documents
17 Dec 2018
02 Nov 2018
02 Nov 2018
28 Oct 2018
13 Sep 2018
10 Sep 2018
04 Jun 2018
31 May 2018
23 May 2018
14 May 2018
14 May 2018
26 Jan 2018 P802.1AS-Rev/D6.0 Editor’s Report, Proposed Comment Resolution for WG Ballot Revision 1 (v3)  — Geoffrey M. Garner
26 Jan 2018 P802.1AS-Rev/D6.0 Editor’s Report, Proposed Comment Resolution for WG Ballot Revision 1 (v2)  — Geoffrey M. Garner
26 Jan 2018 P802.1AS-Rev/D6.0 Editor’s Report, Proposed Comment Resolution for WG Ballot Revision 1 (v1) — Geoffrey M. Garner
22 Jan 2018 P802.1AS-Rev/D6.0 Editor’s Report, Proposed Comment Resolution for WG Ballot — Geoffrey M. Garner
2017 documents
08 Nov 2017 Status of 802.1AS-Rev/D5.1 and Questions on Several Items Needing Resolution Revision 1 — Geoffrey M. Garner
06 Nov 2017 Status of 802.1AS-Rev/D5.1 and Questions on Several Items Needing Resolution — Geoffrey M. Garner
26 Oct 2017 Proposed communication from the IEEE 802.1 working group to the Wi-Fi Alliance — Rodney Cummings
23 Oct 2017 Collection of Bullet Points for use in drafting WFA Liaison — Geoffrey M. Garner
14 Aug 2017 P802.1AS-Rev/D5.0 Editor’s Report, Comment Resolution for 1st WG Ballot Revision 5 (after 8/28/2017 call) — Geoffrey M. Garner
14 Aug 2017 P802.1AS-Rev/D5.0 Editor’s Report, Comment Resolution for 1st WG Ballot Revision 4 (after 8/21/2017 call) — Geoffrey M. Garner
14 Aug 2017 P802.1AS-Rev/D5.0 Editor’s Report, Comment Resolution for 1st WG Ballot Revision 3 (after 8/14/2017 call) — Geoffrey M. Garner
07 Aug 2017 P802.1AS-Rev/D5.0 Editor’s Report, Comment Resolution for 1st WG Ballot Revision 2 (after 8/7/2017 call) — Geoffrey M. Garner
31 Jul 2017 P802.1AS-Rev/D5.0 Editor’s Report, Comment Resolution for 1st WG Ballot Revision 1 (after 7/31/2017 call) — Geoffrey M. Garner
26 Jul 2017 P802.1AS-Rev/D5.0 Editor’s Report, Comment Resolution for 1st WG Ballot — Geoffrey M. Garner
13 Jul 2017 Pdelay – IEEE P802.1AS-Rev vs IEEE P1588-Rev (v2) — Christian Boiger
12 Jul 2017 Resolution of Comments on Project Authorization Request (PAR) modification — Geoffrey M. Garner
11 Jul 2017 Pdelay – IEEE P802.1AS-Rev vs IEEE P1588-Rev (v1) — Christian Boiger
11 Jul 2017 Project Authorization Request (PAR) modification (v2) — Geoffrey M. Garner
10 Jul 2017 IEEE 802.1AS REV D5.0 Review Comments (v1) — Ganesh Venkatesan
10 Jul 2017 IEEE 802.1AS REV D5.0 Review Comments — Ganesh Venkatesan
03 Jun 2017 Project Authorization Request (PAR) modification (v1) — Geoffrey M. Garner
14 May 2017 Project Authorization Request (PAR) modification (v1) — János Farkas
13 Mar 2017 Proposal to Add YANG Model to IEEE 802.1AS-rev — Marina Gutiérrez
13 Mar 2017 802.1AS-Rev PAR Revision — Geoffrey M. Garner
12 Mar 2017 802.1AS-rev: YANG Roadmap Proposal — Rodney Cummings
27 Feb 2017 Optional 1588 States not used in 802.1AS-Rev — Geoffrey M. Garner
27 Feb 2017 Items Related to Several Managed Objects Pertaining to EPON Transport in 802.1AS-Rev — Geoffrey M. Garner
2016 documents
07 Nov 2016 Draft Text for Beginning of 802.1ASRev/D4.2, Subclause 7.2.4 — Geoffrey M. Garner
03 Nov 2016 802.1AS-Rev: Data Set Enhancements — Rodney Cummings
12 Sep 2016 802.1AS-Rev/D4.1 Editor’s Summary — Geoffrey M. Garner
25 Jul 2016 802.1AS-rev: Assumptions for Profile Gateway (v1) — Rodney Cummings
22 Jul 2016 802.1AS-rev: Assumptions for Profile Gateway (v0) — Rodney Cummings
18 Jul 2016 Measuring recovered clock quality — Bogdan Tenea
20 May 2016 Resolving 802.1AS-rev — Rodney Cummings
14 May 2016 Discussion of New State Machines and Specifications for Transport of Time Sync in 802.1AS using 802.11 FTM — Geoffrey M. Garner
04 Apr 2016 gPTP switchover time — Bogdan Tenea
16 Mar 2016 Interoperable Pdelays in IEEE 802.1AS-Rev — Don Pannell
14 Mar 2016 Summary of Major Items Needed for 802.1AS-Rev/D3.0 — Geoffrey M. Garner
14 Mar 2016 Contribution to the Precise Networked Clock Synchronization Working Group for the Revision of IEEE 1588-2008 — Rodney Cummings
19 Jan 2016 sourcePortIdentity: optional alternate meaning (and “path version trace” and “path version test”) (v2) — Michael Johas Teener
18 Jan 2016 optional alternate sourcePortID meaning (and “path version trace” and “path version test”) (v1) — Michael Johas Teener
18 Jan 2016 FTM Parameters for 802.1AS — Carlos Aldana
2015 documents
02 Dec 2015 Notes from Discussion of 802.1AS Security (v2) — Rodney Cummings
25 Nov 2015 Notes from Discussion of 802.1AS Security (v1) — Rodney Cummings
2011 documents
07 Nov 2011 Management Support for Automatic Measurement of Link Delay Asymmetry — Lu Huang

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