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The full title of this PAR is "Standard for Local and Metropolitan Area Networks-Media Access Control (MAC) Bridges and Virtual Bridged Local Area Networks Amendment: Enhancements for Scheduled Traffic".
This amendment specifies time-aware queue-draining procedures, managed objects and extensions to existing protocols that enable bridges and end stations to schedule the transmission of frames based on timing derived from IEEE Std 802.1AS. Virtual Local Area Network (VLAN) tag encoded priority values are allocated allowing simultaneous support of scheduled traffic, credit-based shaper traffic and other bridged traffic over Local Area Networks (LANs).
Bridges are increasingly used to interconnect devices that support scheduled applications (e.g., industrial automation, process control and vehicle control). This amendment will provide performance assurances of latency and delivery variation to enable these applications in an engineered LAN while maintaining the existing guarantees for the credit-based shaper and best-effort traffic.
The credit-based shaper works well in arbitrary networks (i.e., non-engineered). Networks employing scheduled transmissions are able to control real-time processes. This amendment enables those two kinds of networks to be consolidated into a single network, with a significant cost reduction to the user.
|Status||PAR approved 15th May 2012.|
|08 Jun 2012||802.1Qbv, Draft 0.0|
|09 Nov 2012||802.1Qbv, Draft 0.1|
|10 Jan 2013||802.1Qbv, Draft 0.2|
|02 Dec 2013||802.1Qbv, Draft 1.0|
|19 Jan 2014||802.1Qbv, Draft 1.0 proposed comment dispositions|
|03 Feb 2014||802.1Qbv, Draft 1.0 comment dispositions|
|07 Mar 2014||802.1Qbv, Draft 1.1|
|21 Apr 2014||802.1Qbv, Draft 1.2|
|11 May 2014||802.1Qbv, Draft 1.2 proposed comment dispositions|
|12 May 2014||802.1Qbv, Draft 1.2 proposed comment dispositions|
|26 Jun 2014||802.1Qbv, Draft 1.2 comment dispositions|
|26 Jun 2014||802.1Qbv, Draft 1.3|
|30 Jun 2014||802.1Qbv, Draft 1.2 comment dispositions|
|16 Jul 2014||802.1Qbv, Draft 1.3 proposed comment dispositions|
|16 May 2012||Presentation bv-boiger-transmission-windows-0512-v01.pdf|
|16 May 2012||Presentation bv-boiger-transmission-windows-0512-v02.pdf|
|10 Sep 2012||Presentation bv-boiger-time-aware-shaper-0912-v02.pdf|
|16 Jan 2013||Presentation bv-boiger-gates-vs-windows-scheduled-traffic-0113.pdf|
|16 Jan 2013||Presentation bv-boiger-gates-vs-windows-scheduled-traffic-0113.pptx|
|20 Mar 2013||Presentation bv-boiger-TAS-flush-queue-0313.pdf|
|16 May 2013||Presentation bv-kiessling-Some-sources-of-Latency-and-Jitter-0513-v01.pdf|
|17 Jul 2013||Presentation bv-goetz-TSN-RobustControlDataTraffic-0717-v1.pdf|
|05 Sep 2013||Presentation bv-goetz-TSN-GuaranteedLatency4CDT-20130904-v1.pdf|
|07 Nov 2013||Presentation bv-kerschbaum-TSN-Latency4CDT-112013-v4.pdf|
|08 Nov 2013||Presentation bv-kerschbaum-TSN-Latency4CDT-112013-v5.pdf|
|15 May 2014||Presentation bv-nfinn-specifying-gate-schedules-0514-v01.pdf|
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