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...	...	@@ -276,12 +276,14 @@
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277	277	Connect to MQTT Broker
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	279	+
279	279	After connected, use publish to public some thing to MQTT server. This to simulate upsteam
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281		-[[image:https://wiki.dragino.com/images/thumb/b/bd/MQTT_Forward_5.png/600px-MQTT_Forward_5.png||height="149" width="600"]]
	282	+[[image:image-20220527135037-7.png]]
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283	283	Upstream: Publish message to MQTT Broker
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	286	+
285	285	To simulate a downstream, use MQTT.fx to subscribe a topic, and publish something to this topic. as Below:
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287	287	[[image:https://wiki.dragino.com/images/thumb/3/3d/MQTT_Forward_6.png/600px-MQTT_Forward_6.png||height="279" width="600"]]