[ieee-ietf-coord] update on IEEE 802.1 TSN

Janos Farkas <Janos.Farkas@ericsson.com> Tue, 16 February 2021 20:54 UTC

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From: Janos Farkas <Janos.Farkas@ericsson.com>
To: DetNet WG <detnet@ietf.org>
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Thread-Topic: update on IEEE 802.1 TSN
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Date: Tue, 16 Feb 2021 20:54:17 +0000
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Subject: [ieee-ietf-coord] update on IEEE 802.1 TSN
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Hi,
Please find below an update on recent progress in IEEE 802.1 TSN<https://www.ieee802.org/1/tsn> since the TSN update given at IETF 106<https://datatracker.ietf.org/meeting/106/materials/slides-106-detnet-sessb-tsn-update-01>.
The TSN Task Group (TG) page<https://www.ieee802.org/1/tsn> summarizes TSN standards<https://1.ieee802.org/tsn/#TSN_Standards> and ongoing projects<https://1.ieee802.org/tsn/#Ongoing_TSN_Projects>, and provides a link to the most recent one-page summary: https://www.ieee802.org/1/files/public/docs2021/admin-tsn-summary-0221-v01.pdf.

IEEE Std 802.1CMde-2020<https://standards.ieee.org/standard/802_1CMde-2020.html> TSN for Fronthaul amendment has been published to extend the base standard with enhancements to fronthaul profiles, add support for a new fronthaul interface,  and new synchronization, and syntonization standards.
The TSN profile projects for industrial automation (IEC/IEEE 60802<https://1.ieee802.org/tsn/iec-ieee-60802/>), automotive (P802.1DG<https://1.ieee802.org/tsn/802-1dg/>), and service provider (P802.1DF<https://1.ieee802.org/tsn/802-1df/>) networks are at TG ballot.
The new P802.1DP<https://1.ieee802.org/tsn/802-1dp/> project has been just started to specify TSN profiles for aerospace onboard Ethernet networks. The intent is to develop this standard jointly with SAE Avionics Networks AS-1 A2.

A major milestone has been achieved by publishing the 2020 revision of the IEEE 802.1AS<https://standards.ieee.org/standard/802_1AS-2020.html> standard, which includes the generalized Precision Time Protocol (gPTP) profile of the IEEE Std 1588-2019 Precision Time Protocol. The new features provided by IEEE Std 802.1AS-2020 include: multiple gPTP domains, external port configuration, management support for delay asymmetry measurement, Fine Timing Measurement for IEEE 802.11 transport and more. Two projects amending IEEE Std 802.1AS-2020<https://standards.ieee.org/standard/802_1AS-2020.html> are underway.
The P802.1ASdm<https://1.ieee802.org/tsn/802-1asdm/> project specifies hot standby operations between two gPTP domains in order to improve reliability and availability for time synchronization.
The P802.1ASdn<https://1.ieee802.org/tsn/802-1asdn/> project specifies a YANG data model for the base standard.
Furthermore, a corrigendum<https://1.ieee802.org/maintenance/802-1as-2020-cor1-corrigendum-to-ieee-standard-802-1as-2020/> is underway to correct minor errors in the base standard.
In addition, a new project is being started to replace non-inclusive terms with inclusive terminology wherever possible; see draft Project Authorization Request<https://www.ieee802.org/1/files/public/docs2021/dr-PAR-0221-v01.pdf> (PAR) and Criteria for Standards Development<https://www.ieee802.org/1/files/public/docs2021/dr-CSD-0221-v01.pdf> (CSD).

IEEE Std 802.1AX-2020<https://standards.ieee.org/standard/802_1AX-2020.html> Link Aggregation has been published.

IEEE Std 802.1Qcr-2020<https://standards.ieee.org/standard/802_1Qcr-2020.html> Asynchronous Traffic Shaping (ATS) has been published. This amendment specifies synchronous traffic shaping over full-duplex links with constant data rates.
The P802.1DC<https://1.ieee802.org/tsn/802-1dc/> project, which specifies QoS features for non-bridge network systems is at TG ballot.

IEEE Std 802.1Qcx-2020<https://standards.ieee.org/standard/802_1Qcx-2020.html> YANG for Connectivity Fault Management (CFM) has been published.
The YANG projects for LLDP (P802.1ABcu<https://1.ieee802.org/tsn/802-1abcu/>), FRER (P802.1CBcv<https://1.ieee802.org/tsn/802-1cbcv/>), and an initial set of TSN features (P802.1Qcw<https://1.ieee802.org/tsn/802-1qcw/>) are at WG ballot.
Th P802f<https://1.ieee802.org/tsn/802f/> project to specify YANG data model for EtherTypes including compact and human-readable names is at TG ballot.

The IEEE 802.1CS-2020<https://standards.ieee.org/standard/802_1CS-2020.html> Link-local Registration Protocol (LRP) specification is with the IEEE Editor for publication. LRP is a new base protocol for signaling, which can be used of the distributed configuration model of TSN.
The P802.1CBdb<https://1.ieee802.org/tsn/802-1cbdb/> project, which specifies extended stream identification functions is at WG ballot.
The P802.1ABdh<https://1.ieee802.org/tsn/802-1abdh/> project, which specifies support for multi-frame LLDPDUs is at WG ballot.
The P802.1Qdd<https://1.ieee802.org/tsn/802-1qdd/> Resource Allocation Protocol (RAP) project specifies the first application of 802.1CS LRP<https://standards.ieee.org/standard/802_1CS-2020.html> for distributed resource reservation. P802.1Qdd is at TG ballot.
The P802.1Qdj<https://1.ieee802.org/tsn/802-1qdj/> Configuration Enhancements for Time-Sensitive Networking project is at TG ballot.
The P802.1CQ<https://1.ieee802.org/tsn/802-1cq/> project, which specifies locally-unique assignment of 48-bit and 64-bit addresses in IEEE 802 networks is at TG ballot.

The P802.1Qcj<https://1.ieee802.org/tsn/802-1qcj/> auto-attach project is at WG ballot.
IEEE SA ballot is about to be started on the P802.1Qcz<https://1.ieee802.org/tsn/802-1qcz/> Congestion Isolation project.

Note that the ongoing P802.1Q-Rev<https://1.ieee802.org/maintenance/p802-1q-rev/> project provides a maintenance roll-up of 802.1Q-2018 with the amendments: 802.1Qcc, 802.1Qcp, 802.1Qcr, and 802.1Qcx.

You are welcome to participate. The main 802.1 page: https://www.ieee802.org/1  includes a link to an introductory presentation to IEEE 802.1 including participation. The current version is: https://www.ieee802.org/1/files/public/docs2020/admin-parsons-WG-logistics-orientation-1120.pdf. See also updates on twitter<https://twitter.com/search?q=%40ieee802%20802.1&src=typed_query&f=live>.
Feel free to contact me with further questions.
Best regards,
János