You are troubleshooting a problem with a wireless solution that uses MQTT where the IoT end devices are not reporting to the MQTT server/broker. At what Layer of the OSI Model should troubleshooting begin when using a bottom-up method?
Bottom-Up Troubleshooting: The OSI model provides a structured diagnostic approach. Starting at Layer 1 ensures basic physical connectivity issues are ruled out first.
MQTT Relies on IP: MQTT operates at a higher layer of the OSI model, relying on TCP/IP (Layers 4 and 3) for communication. Problems at the physical layer will disrupt everything built upon it.
Checking the Fundamentals: Before investigating complex application issues (MQTT), verify cables, link lights, Wi-Fi signal strength, etc.
[References:, OSI Model: Descriptions of the seven layers, emphasizing the foundation provided by Layer 1 (Physical)., Network Troubleshooting Guides: Resources that outline common Layer 1 problems and their symptoms., ]
Contribute your Thoughts:
Chosen Answer:
This is a voting comment (?). You can switch to a simple comment. It is better to Upvote an existing comment if you don't have anything to add.
Submit