Time sensitive networking open standard:

Changes to standard Ethernet enabling convergence with IoT

Neil Stroud, IntelErik van Hilten, National Instruments

April 2016, Hannover Messe

There are Challenges to IoT Scale …

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Time Coordinated Compute

IEEE 802.1AVB / TSN

Latency Guarantees,

SeamlessRedundancy, etc.

Between

Systems

Within The

System

Time

SyncTimeliness

Common

Platform

Time

Realtime

Eg. Cache Allocation

Technology™, User Interrupts,

etc.

IEEE 1588 PTP

802.1AS

Ethernet, Wi-Fi

Lots of Communications Standards

IoTApplication Verticals

and more coming……

IIC TSN Testbed TopologyCatalyst 3850 Firewall

Robot ControlRobot

MotionControl

Controller, IO, Vision

MotionControl

ServoDrives

I/O

TTTech

TTTechTTTech Field-Device (IO)

Controller

cloud

HMIIO

Virtualized Server

Central Network Controller

Traffic Generator

IE 4000 TSN Switch

TSN Field-Devices (IO)

Linear Axis / Robot Synchronization in Detail

MotionControl

ServoDrive

RobotControl

Robot

http://www.iiconsortium.org/test-beds.htm

What is TSN

• Updates to the Ethernet standards through IEEE 802 to improve latency and performance while maintaining interoperability and openness

• Time Sensitive Networking (TSN) will provide:• Time synchronization

• Bandwidth reservation and path redundancy for reliability

• Guaranteed bounded latency

• Low latency (cut-though and preemption)

• Bandwidth (Gb+)

• Routable to support complex networks and wireless

IEEE Time-Sensitive Networks Overview

Standard Area Title

IEEE 802.1ASrev, IEEE 1588

Timing & Synchronization Enhancements and Performance Improvements

IEEE 802.1Qbu & IEEE 802.3br

Forwarding and Queuing Frame Preemption

IEEE 802.1Qbv Forwarding and Queuing Enhancements for Scheduled Traffic

IEEE 802.1Qca Path Control and Reservation Path Control and Reservation

IEEE 802.1Qcc Central Configuration Method Enhancements and Performance Improvements

IEEE 802.1Qci Time Based Ingress Policing Per-Stream Filtering and Policing

IEEE 802.1CB Seamless Redundancy Frame Replication & Elimination for Reliability

IEEE 802.1Qch Forwarding and Queuing Shapers for Priority Traffic

What Standards Specify TSN Protocol for Ethernet?

Hardware Capabilities

IT Software Protocols

Application/OT Software Protocol(“The Protocol”)

Co

nfo

rman

ce &

Inte

rop

erab

ility

“TSN Protocol for Ethernet”

What Standards Specify TSN Protocol for Ethernet?

Hardware Capabilities IEEE 802.1, 802.3, 802.11

IT SW Protocol

IEEE 802.1, 802.11, IETF

Application Protocols(Numerous)

Co

nfo

rman

ce &

Inte

rop

erab

ility

Avn

u “TSN Protocol for Ethernet”

Background: Avnu Alliance

• Avnu is a community:

• Companies from different levels in the supply chain representing diverse markets working together on TSN

• Community offers

• Relationships

• Educational Material

• Market Profiles and Requirements

• Liaisons with organizations who use TSN

• Certification services

• Licensing of Test Plan IP

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Primary Mission: “The Avnu Alliance is a community creating an interoperable ecosystem servicing precise

timing and low latency requirements of diverse applications using open standards through certification.”

Avnu maintains technical platform:

Because there is one network:

• There needs to be a common technology platform for synchronous, deterministic networking on standard Ethernet

This platform consists of:

• Certification Plans

• Test Plans

• Open Source Software

• Standardized APIs

• HW Reference Designs

TSN Device and Protocol Components

Device Discovery and Config

Data mapping (database/profiles)

Safety Protocol (Black channel)

Time Synchronization

SecurityNetwork

Configuration

Compliance TestingCompliance Certification

Adoption into standards bodies

General Promotion

HW Designs(Ref design/ASIC)

SW Designs(Source code)

Design Services(Integration/Support)

Embedded Device Design

Device Protocol Capabilities

Conformance

Marketing

Standard (IEEE 802.1, IETF, AVnu)

Custom (by protocol)

TSN Standard foundation – shared among all nodes(HW, Driver, Timing, Interoperability, Network Configuration, etc)

Protocol specific – may be optimized for technical, backwards compatibility, or business reasons

“OPC-UA TSN” Device and Protocol Support

Device Discovery and Config

Data mapping (database/profiles)

Safety Protocol (Black channel)

Time Synchronization

SecurityNetwork

Configuration

Compliance TestingCompliance Certification

Adoption into standards bodies

General Promotion

HW Designs(Ref design/ASIC)

SW Designs(Source code)

Design Services(Integration/Support)

Embedded Device Design

Device Protocol Capabilities

Conformance

Marketing

Standard (IEEE 802.1, IETF, AVnu)

Custom (by protocol)

TSN Standard foundation – shared among all nodes(HW, Driver, Timing, Interoperability, Network Configuration, etc)

OPC-UA Protocol Specific:• Promotion: OPC FOUNDATION• Conformance: OPC Certification Program• Data mapping: OPC Information Models

TSN-based Protocols – “Sharing the Wire”

Key Idea: AVnu can provide value for industrial markets by endorsing

foundational TSN services in support of multiple industrial protocols.

Standard foundation – shared among all nodes(HW, Driver, Timing, Interoperability, Network Configuration, etc)

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These concepts represent the view of AVnu. AVnu does not represent plans or views of other organizations including OPC Foundation, OMG, ODVA, PI, …

Join the Effort• AVnu Alliance has created an Industrial Advisory Council for

manufacturers and end users to learn more about the Alliance and the

standards and to get involved with shaping the future of industrial

networking. – Be informed of the evolutions happening in standard Ethernet to support converged time-

synchronized networking.

– Provide input and feedback to influence the on-going activities for conformance and

certification of products coming to market.

– Network with other thought leaders in the areas of converged, time-synchronized

communications.

– Gain visibility into suppliers and consultants when looking to build a conformant system

– Learn tips and best practices on building and maintaining converged time-synchronized

systems.

• If you or someone you know is interested in joining (no fee) or finding out

more, please contact administration@avnu.org.

Thank you!