Keysight announced that testing conducted by the Industrial Internet Consortium® (IIC™), with the company's IxNetwork Time-Sensitive Networking (TSN) solution, demonstrated significant advancements in multi-vendor interoperability in accordance with the standards under development by the IEEE 802.1 to enable time-critical applications on Ethernet-based communication networks.
The testing was performed at the recent TSN Plugfest at the University of Stuttgart in Germany, using the IxNetworkTSN solution from Ixia, a Keysight business, and the IIC Time Sensitive Networking Testbed, for conducting functionality, interoperability and conformance tests with industrial devices from participating IIC members.
The tests revealed two key points about early stage TSN implementations:
- Time-critical traffic flow: In an industrial network consisting of TSN switches from different vendors, the controller (CNC) needs a standard and efficient way to configure time-critical traffic flow. The reaction of the switch in response to a message from the CNC directly impacts the delay in starting the time-critical traffic.
- Interoperability and interference: While individual TSN standards work in silos, a system is more prone to failure when multiple TSN functions could interfere with each other, causing frame disruptions and delays to traffic. With line-rate, realistic traffic loads, the IxNetwork system-level test validated the transmission of time-sensitive frames (IEEE 802.1Qbv) alongside frame preemption (IEEE 802.1Qbu) where the lower-priority frame is preempted to allow transmission of time-critical express frames.
More information at www.ixiacom.com