Where do I ckeck downlink frame was receive by the device?

ChirpStack Application Server
1

I am new at chirpstack, and I have some doubts about how to trace donwlink data …
I can check downlink data in the device queue (REST API /api/devices/{dev_eui}/queue), but what topic in mqtt or stream log (in the API or in the web interface) should I check if I want to see downlink data when is sent to the gateway? Is event txack enough to ensure the delivery on the device?
Thank you.

2

If the downlink is a confirmed payload, yes, you could use txack. You may not want to use confirmed for every downlink, though.

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