ngRTE - Next Generation Real-Time Ethernet for Industrial Applications

Team @ CCS

Funding

  • Siemens AG

Project Time

  • 09/2014-08/2015

Description

Ethernet is under continuous development. Industrial Applications require deterministic behavior of the network. The IEC standardized some extensions for the Layer 2 Ethernet technology in order to get the required deterministic behavior of the network for the industrial application.

The IEEE continuously defines extensions and improvements for Ethernet. Inside the 802.1, the AVB Working Group focused on stringent requirements of consumer applications. They standardized extensions to enable a deterministic behavior of Ethernet. Their main focus was on the transmission of Audio and Video (AV) signals in Ethernet networks on Layer 2 (Bridging), therefore the naming was AVB (Audio and Video Bridging). The standardized mechanisms change the behavior of Ethernet for a special class of traffic (Streams) to ensure a guaranteed deterministic transport inside a network and coexistence with best-effort traffic.

The same working group is now focusing on more stringent requirements from industrial and automotive applications. Therefore the Working Group changed their name to Time Sensitive Networking (TSN) Working Group and is working together with the Interworking Task Group to be able to use special paths for the transmission of streams. These paths are independent from the default forwarding path in the network and can be optimized to fulfill different requirements.

The goal of the ngRTE Project is to analyse new methods and evaluate the usability for industrial applications. Industrial applications require a deterministic transport of data. The forwarding process is a key element in the behaviour of Ethernet networks. AVB introduced a Shaper to make the behaviour of Ethernet for streams more deterministic and ensured, by using the reservation protocol MSRP, that enough ressources are available for the transport.

AVB Standards

    IEEE 802.1 AS Timing and Synchronization for Time-Sensitive Applications (gPTP)
    IEEE 802.1 Qat Stream Reservation Protocol (SRP)
    IEEE 802.1 Qav Forwarding and Queuing for Time-Sensitive Streams
    IEEE 802.1 BA Audio Video Bridging Systems

Future TSN Standards

Selected Talks

  • Marcel Kiessling and Franz-Josef Goetz, "Industrial Networks - Details about Industrial Network use cases," Talk, IEEE 802.1 Interim Meeting, Norfolk, VI, May 2014. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "CB - Further Details - Open Questions and further Details for a CB Solution," Talk, IEEE 802.1 Interim Meeting, Norfolk, VI, May 2014. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "CB information @ Layer 2 - Open Issues for a Layer 2 Solution," Talk, IEEE 802.1 Plenary Meeting, Beijing, China, March 2014. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "sequence number relationship - Which sequence number relationship schould be used for CB," Talk, IEEE 802.1 Interim Meeting, Los Angeles, CA, January 2014. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "ISIS PCR - Path Control and Reservation / Path Control for Reservation / Path Control for Reliability," Talk, IEEE 802.1 Interim Meeting, Los Angeles, CA, January 2014. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "CB Seamless Failover - How to seperate multiple copies of one stream?," Talk, IEEE 802.1 Plenary Meeting, Dallas, TX, November 2013. [BibTeX, Details...]
  • Marcel Kiessling and Ludwig Winkel, "802.3 Distinguished Minimum Latency Traffic," Talk, Joint IEEE-SA and ITU Workshop on Ethernet, Geneva, Switzerland, July 2013. [BibTeX, Details...]
  • Marcel Kiessling, "Suggestion for L2 and L3 Streams," Talk, IEEE 802.3 Plenary Meeting, Geneva, Switzerland, July 2013. [BibTeX, Details...]
  • Marcel Kiessling, "ISIS SPB PCR for TSN," Talk, IEEE 802.3 Plenary Meeting, Geneva, Switzerland, July 2013. [BibTeX, Details...]
  • Marcel Kiessling, "Some sources of Latency and Jitter," Talk, IEEE 802.1 Interim Meeting, Victoria, BC, Canada, May 2013. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "Why an additional Shaper?," Talk, IEEE 802.1 Plenary Meeting, Orlando, FL, March 2013. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "Improvements for gPTP Gen 1," Talk, IEEE 802.1 Plenary Meeting, Orlando, FL, March 2013. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "MSRP Gen 2 for Time Sensitive Networks (TSN - AVB Gen 2)," Talk, IEEE 802.1 Interim Meeting, Vancouver, BC, Canada, January 2013. [BibTeX, Details...]
  • Marcel Kiessling and Franz-Josef Goetz, "Improvements for gPTP Gen 1," Talk, IEEE 802.1 Interim Meeting, Vancouver, BC, Canada, January 2013. [BibTeX, Details...]