Knowledge Base

Watch the latest Testing the Limits Series. Hear the latest updates on IEEE 802.1 for TSN and IEEE 802.3 for SPE. Covering information on the upcoming 2023 10BASE-T1S Plugfest, MultiGBase-T1 testing, PHY-C, and more.

Watch UNH-IOL's Bob Noseworthy in the discussion centered around IEEE 802.1, specific to Time Sensitive Networking (TSN) and IEEE 802.3 Single Pair Ethernet. Expect the following updates in the video:

• Status / New Findings from Automotive Ethernet Congress
• 10BASE T1S Updates
• 802.1 & 802.3 Updates
• Summary of ongoing TSN profile work
• Live Q&A with open discussion

Join UNH-IOL's Bob Noseworthy in our discussion centered around IEEE 802.1, specific to Time Sensitive Networking (TSN) and IEEE 802.3 Single Pair Ethernet. Sync up with UNH-IOL’s status and development plans and join in to share your needs. Our format is new and open, but come prepared to share your ideas and expect the following:

• Status / New Findings from Automotive Ethernet Congress
• 10BASE T1S Updates
• 802.1 & 802.3 Updates
• Summary of ongoing TSN profile work

Join UNH-IOL's Bob Noseworthy in our discussion centered around IEEE 802.1, specific to Time Sensitive Networking (TSN) and IEEE 802.3 Single Pair Ethernet. Sync up with UNH-IOL’s status and development plans and join in to share your needs. This is an open forum, so come prepared to share your ideas and expect the following IOL updates:

• Update on the IEEE-SA 1588 Power Profile Certification Program
• Summary of ongoing TSN profile work
• Upcoming Plugfest Events at the IOL, including:
  • O-RAN Alliance Plugfest to include S-Plane testing aka “Synchronization Plane” as well as ITU-T 8275.1/.2 conformance test capability with industry partners
  • Ethernet Alliance High Speed Networking Plugfest
• Live Q&A with open discussion

Join UNH-IOL's Bob Noseworthy in our discussion centered around IEEE 802.1, specific to Time Sensitive Networking (TSN) and IEEE 802.3 Single Pair Ethernet. Sync up with UNH-IOL’s status and development plans and join in to share your needs. Our format is new and open, but come prepared to share your ideas and expect the following IOL updates:

• SPE, APL and TSN validation efforts and progress from IEEE 802 January interims
• Status on NSF I/UCRC Center for Digital Factory Innovation with UNH, Georgia Tech and NCSU
• Timing Security: 1588/PTP Security & NTP NTS
• IEEE Certification for 1588
• Summary of ongoing TSN profile work

Join UNH-IOL's Bob Noseworthy in our discussion centered around IEEE 802.1, specific to Time Sensitive Networking (TSN) and IEEE 802.3 Single Pair Ethernet (SPE). Learn about the following IOL updates: 10BASE-T1L and Advanced Physical Layer (APL) work, 1000BASE-T1 validation, plans for MultiGigBASE-T1, TSN test NIC status, validation of Time Aware Shaping, PTP, UNH-IOL BitPhyer based preemption testing, including negative test conditions & IEEE Certification for IEEE 1588 profiles and more. Live discussion as well!

vIOLett® is a family of software packages used to test a product’s conformance to common protocols used in Time Sensitive Networking (TSN). There are vIOLett packages to test 1588, including Telecom and Power Profile, gPTP, MRP, MSRP, MVRP, and CBS. In addition, vIOLett is used to test products for the Avnu Certification Program, including Bridges, Pro AV or Milan Endstations, and Automotive devices. Learn how this tool can help identify areas of improvement during the development process and automate testing, reducing time to market and increasing your product’s reliability. In this presentation, industry experts, Bob Noseworthy and Daroc Alden, UNH-IOL, will review key features of vIOLett and what it means for your TSN testing. 

Learn how to configure and use our test tool, vIOLett, to test Time Sensitive Networking to be better prepared for certification testing. vIOLett includes 802.1AS (gPTP); 802.1BA and more for coverage all within the vIOLett for Avnu test package. Check out this demo and install video for more information on vIOLett.

This is a collection of published papers assembled as a reference for those involved in characterizing and specifying high-performance clocks and oscillators. It is an interim replacement for NBS Monograph 140, Time and Frequency: Theory and Fundamentals, an older volume of papers edited by Byron E. Blair. This current volume includes tutorial papers, papers on standards and definitions, and a collection of papers detailing specific measurement and analysis techniques. The discussion in the introduction to the volume provides a guide to the content of the papers, and tables and graphs provide further help in organizing methods described in the papers

Not familiar with TSN? Refer to the following overview summarizing activities and materials from Michael Johas Teener (IEEE 802.1 TSN Chair), Dr Edward Lee (UC Berkley), and numerous other parties, conferences and events.

Get involved!

This presentation provides an overview of clock and time synchronization across heterogeneous networks using the published standards:
- IEEE Std 802.1AS(TM)-2011 and
- IEEE Std 802.11(TM)-2012 Timing Measurement

With special focus on wireless / 802.11 links

FQTSS is defined in the IEEE standard 801.Q Clause 34; Forwarding and Queuing Enhancements for Time-Sensitive Streams. The term FQTSS is used to describe a set of tools which are used to forward and queue time-sensitive streams. Since AVB frames cannot be dropped, there must be a mechanism in place to forward AVB frames quickly and efficiently. This is where FQTSS (aka Qav) comes into play. This paper goes into the components that make up FQTSS.