P802.1Qch – Cyclic Queuing and Forwarding
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: Cyclic Queuing and Forwarding”.
This amendment specifies synchronized cyclic enqueuing and queue draining procedures, managed objects, and extensions to existing protocols that enable bridges and end stations to synchronize their transmission of frames to achieve zero congestion loss and deterministic latency.
This amendment specifies a transmission selection algorithm that allows deterministic delays through a bridged network to be easily calculated regardless of network topology. This is an improvement of the existing techniques that provides much simpler determination of network delays, reduces delivery jitter, and simplifies provision of deterministic services across a bridged LAN.
Current Status
| Status | PAR approved Feb 16, 2015. |
| Editor | Tony Jeffree |
Archive
| Date | Document |
|---|---|
| 13 Jan 2016 | 802.1Qch, Draft 0.0 |
| 13 Mar 2016 | 802.1Qch, Draft 0.1 |
| 05 May 2016 | 802.1Qch, Draft 0.1 proposed comment dispositions |
| 26 May 2016 | 802.1Qch, Draft 0.1 comment dispositions |
| 19 Jul 2016 | 802.1Qch, Draft 0.2 |
| 11 Aug 2016 | 802.1Qch, Draft 1.0 |
| 10 Sep 2016 | 802.1Qch, Draft 1.0 proposed comment dispositions |
| 13 Sep 2016 | 802.1Qch, Draft 1.0 comment dispositions |
| 05 Oct 2016 | 802.1Qch, Draft 1.1 proposed comment dispositions |
| 09 Nov 2016 | 802.1Qch, Draft 1.1 comment dispositions |
| 09 Nov 2016 | 802.1Qch, Draft 1.1 comment dispositions |
| 10 Nov 2016 | 802.1Qch, Draft 2.0 |
| 15 Dec 2016 | 802.1Qch, Draft 2.0 proposed comment dispositions |
Presentations