Hi @JED2021 , the Config looks fine as that would create your later 3 interface on the MX which I assume you’ll Trunk to your down stream switches.
Just one question, why not configure the L3 int on your switches instead? Are your switches L2 only or was this done from a security perspective?
Darren OConnor | doconnor@resalire.co.uk
https://www.linkedin.com/in/darrenoconnor/
I'm not an employee of Cisco/Meraki. My posts are based on Meraki best practice and what has worked for me in the field.