Hi all,
I would like to make a mqtt data documentation for Pi 3 using cayenne like a sniffing packet over wifi to calculate and analysis the delay, throughput and protocol overhead, but i don’t have any idea. can I using wireshark ? and how to sniffing the mqtt data packet through wifi if i using other computer ? using port mirroring?
big thanks for help me. 
I’m not sure I follow what you are trying to do. Are you just trying to sniff Cayenne packets sent to/from the Pi? If so, WireShark seems like it should work for that since they appear to have a Debian version, though I’ve never used it on a Pi myself.
Or are you running WireShark from a different machine on the network? If so, I’m not sure how you’d do that. Port mirroring seems like it would work, but I’m no WireShark expert so I don’t know for sure how you’d go about setting that up.
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true, I just trying to sniff Cayenne packets sent to/from the Pi. maybe, i will trying to install the Wireshark to capture it and use other Laptop using SSH to remote Pi.
thanks for your fast respond. i will call you again when I’m ready to start with my project using Cayenne. big thanks bro. 
big thanks bro for your fast respond.
Were you able to capture the packets? Running wireshark on the Pi is the router I would take. You can then copy the capture to your laptop to analyze.
Very welcome my friend
~B