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802.1ASbt - Timing and Synchronization: Enhancements and Performance Improvements

The full title of this PAR is "Standard for Local and Metropolitan Area Networks - Timing and Synchronization for Time-Sensitive Applications in Bridged Local Area Networks Amendment: Enhancements and performance improvements".

This amendment specifies enhancements to IEEE Std 802.1AS that are backward compatibile with the features defined in the 2011 version of the standard, including, if necessary, a means of version discovery.

The enhancements that are to be considered by this project include:

This amendment allows IEEE 802.1AS to be used: with a greater number of network media types and a greater variety of network configurations, and more effectively with existing and new media types and network configurations.

When development of IEEE Std 802.1AS:2011 began, the main focus was on audio/video (A/V) applications; also, the initial focus was on full-duplex IEEE 802.3 media, and support for IEEE 802.11, IEEE 802.3 EPON, and Coordinated Shared Network media was added during the course of the project. While IEEE 802.1AS:2011 allows effective transport of synchronization over gPTP networks that contain the above media, to support A/V applications, the enhancements described in the scope will allow it to be used more effectively for a greater variety of applications (e.g., embedded applications), and with a greater variety of network media and configurations.

Status
StatusPAR approved Sep 10th, 2011. Superseded by 802.1AS-Rev
EditorGeoff Garner

Archive
DateDocument
26 Aug 2013802.1ASbt, Draft 0.1
30 Oct 2013802.1ASbt, Draft 0.2
15 Jan 2014802.1ASbt, Draft 0.3
14 Mar 2014802.1ASbt, Draft 0.4
03 Jul 2014asbt.drafts/2011, Draft cor1/802-1AS-2011-with-cor1-clean
03 Jul 2014asbt.drafts/2011, Draft cor1/802-1AS-2011-with-cor1-diff
11 Jul 2014802.1ASbt, Draft 0.5
13 Jul 2014802.1ASbt, Draft 0.5
05 Sep 2014802.1ASbt, Draft 0.6
01 Nov 2014802.1ASbt, Draft 0.7

Presentations
DateDocument
07 Nov 2011Presentation asbt-huang-measurement-of-link-delay-asymmetry-1031-v00.pdf

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Last modified by jlm, at 8:38PM on Fri, 25 Sep 2015