Uns

OPC UA, Sparkplug B, and the Unified Namespace question

The network layer for the i.MX 8M Plus bench — open62541 server, Sparkplug B broker, and whether Unified Namespace is real architecture or a brand sticker on conventional pub/sub.

Issue 03 stood up the i.MX 8M Plus bench. Issue 04 puts the network layer on it. open62541 OPC UA server vs an Eclipse Tahu / HiveMQ Sparkplug B broker — same data, two stacks, side-by-side measurements. Then the harder question: is Unified Namespace a real architectural shift or a marketing label on top of MQTT pub/sub anyone could have built in 2014. The numbers say one of those is more true than the other.