Reflecting on Sparkplug Birth Messages

[egekorkan]

In Sparkplug specification at https://sparkplug.eclipse.org/specification/version/3.0/documents/sparkplug-specification-3.0.0.pdf, chapter 6.4.19, the payloads of birth messages are defined. These include information on what the Edge node will publish to the broker. This makes me think that TDs can be useful in such situations. Instead or in addition to this structure, TDs can be used which would have additional benefits such as:

• More semantic information about the messages
• Option to indicate which topics the device will subscribe to

We cannot change the standard ourselves but it is something to think about for sure (also for discovery). Probably relevant for other protocols with such features.