I would agree with rburch. Typically each physical location will be in their own network. Switches, APs, cameras at a single site will all be in the same network. The exception to this are the MX firewalls. If you are running layer 3 switches in an environment, the client tracking section of the Addressing and VLANs of the MX, will need to be set to "ip address - Use if there is a non-Meraki layer 3 device routing downstream end clients. ". Even though it says "non-Meraki" I still set this to track by IP even if it is using a Meraki layer 3 switch per https://documentation.meraki.com/MX/Monitoring_and_Reporting/Client_Tracking_Options. The reasoning for this is at a layer 3 hop, a layer 3 device will change the source mac address to that of itself. If you're tracking by mac address, then all you'll see is traffic coming/going to your switch. Once you change the tracking to be by IP address, it requires you to put the MX in its own network.
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