Thank you for reaching out with your question regarding the support for RADSEC on Meraki switches MS250 and MS390. This community board is specifically for Meraki Go products. For detailed and accurate information about Meraki switches, including the MS250 and MS390, I recommend directing your question to the Cisco Meraki Community board. The experts there will be able to provide you with the most relevant and precise information.
Thank you,
.ılı.ılı. Jessica Ardelean
Meraki Go Technical Support