802.1Qdt – Priority-based Flow Control Enhancements

This amendment specifies procedures and managed objects for automated Priority-based Flow Control (PFC) headroom calculation and Media Access Control Security (MACsec) protection of PFC frames, using the existing Precision Time Protocol (PTP) and enhancements to the Data Center Bridging Capability Exchange protocol (DCBX).

This amendment places emphasis on the requirements for low latency and lossless transmission in large-scale and geographically dispersed data centers.

This amendment also addresses errors of the existing IEEE Std 802.1Q functionality.

Current Status

Status Editor’s draft
Current Draft D0.2 (15 Sep 2022)
PAR & CSD Full title: Draft Standard for Local and Metropolitan Area Networks: Bridges and Bridged Networks — Amendment: Priority-based Flow Control Enhancements
PAR (Approved: 13 May 2022; Expires: 31 Dec 2026)
CSD
Editor Lily Lv

Archive

Date Document
15 Sep 2022 P802.1Qdt, Draft 0.2
13 Sep 2022 P802.1Qdt, Draft 0.0

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.

Date Document
10 Nov 2022 P802.1Qdt Status Update and New Proposal Discussion
27 Oct 2022 P802.1Qdt Status Update and New Proposal Discussion
10 Jul 2022 PFC Enhancements Discussion – PFC Management 
14 Nov 2021 Recap of Headroom and Enhancements Project Proposal
23 Sep 2021 PFC Headroom and Enhancements Project Proposal
02 Jul 2021 PFC Headroom Measurement and Calculation Project Proposal
21 Jun 2021 Adaptive PFC Headroom and PTP
08 Mar 2021 Adaptive PFC Headroom
   
   

The above list includes only the latest version of updated documents and omits those superseded by subsequent discussion or inclusion in the current draft (see filenames beginning “dt-” in the 2022 public directories for a complete list). The dates listed are the website file dates; they may differ from the creation dates in the documents.

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

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