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Ethernet consortia trio want to unlock a more time-sensitive network

Michael Cooney | Nov. 11, 2016
UNH-IOL sets up three new industry specific Ethernet Time-Sensitive Networking (TSN) consortiums

Pro A/V networking: “Recent enhancements and certifications in the audio/video market have created a wider choice of compatible products and open technology that brings high-quality AV networking within the reach of any size Professional AV system.  TSN enhancements provide the important timing audio and video systems need. The Pro AV Networking TSN Consortium is a testing ground for the promises of seamless redundancy, low-latency, and synchronization in the professional audio/video market,” the UNH-IOL stated.

The new consortia effort is but one of a number of ongoing industry-wide developments toward building a more time-sensitive Ethernet. For example the Industrial Internet Consortium’s (IIC) Time-Sensitive Networks testbed is designed to assess TSN technologies as they come to market. “TSN will open up critical control applications such as robot control, drive control and vision systems to the Industrial Internet. This connectivity then enables customers, suppliers and vendors to more readily access data from these systems and to apply preventative maintenance and optimization routines to these systems,” the IIC wrote.

The IEEE has a number of proposed standard working groups developing all manner of TSN or deterministic Ethernet technologies. The IETF too has its Deterministic Networking (detnet) group, which works with the IEEE, to develop “an overall architecture that encompasses the data plane, OAM (Operations, Administration, and Maintenance), time synchronization, management, control, and security aspects which are required to enable a multi-hop path, and forwarding along the path, with the deterministic properties of controlled latency, low packet loss, low packet delay variation, and high reliability.”

Still others like the Avnu Alliance are working to build “low-latency, time-synchronized, highly reliable synchronized networked devices using open standards through certification.” The Avnu Alliance says its members include more than 95% of the Ethernet silicon suppliers in the market, leading players in the networking infrastructure space, household names from the automotive industry and prominent firms in audio-visual markets.

“Avnu Alliance facilitates a new certified networking ecosystem and simplifies network synchronization for engineers through Audio Video Bridging (AVB) and Time Synchronized Networking (TSN) standards, built into Ethernet, not around it; solving major technical and performance issues such as: precise timing and real-time synchronization, bandwidth reservation, and traffic shaping all while reducing the total cost of ownership by minimizing deployment and maintenance time.”


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