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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||PAR approved Sep 10th, 2011. Superseded by 802.1AS-Rev|
|26 Aug 2013||802.1ASbt, Draft 0.1|
|30 Oct 2013||802.1ASbt, Draft 0.2|
|15 Jan 2014||802.1ASbt, Draft 0.3|
|14 Mar 2014||802.1ASbt, Draft 0.4|
|03 Jul 2014||asbt.drafts/2011, Draft cor1/802-1AS-2011-with-cor1-clean|
|03 Jul 2014||asbt.drafts/2011, Draft cor1/802-1AS-2011-with-cor1-diff|
|11 Jul 2014||802.1ASbt, Draft 0.5|
|13 Jul 2014||802.1ASbt, Draft 0.5|
|05 Sep 2014||802.1ASbt, Draft 0.6|
|01 Nov 2014||802.1ASbt, Draft 0.7|
|07 Nov 2011||Presentation asbt-huang-measurement-of-link-delay-asymmetry-1031-v00.pdf|
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