Hi, That's kind of strange cause I got the opposite answer from the support yesterday. As they mentioned that is not recommended, but it work. Here is the support answer: ------------------------------------------------------ A new comment has been made on case 05476938: Hello, Thank you for contacting Cisco Meraki. While it is possible to use a mix of 40G DAC and 10G SFP links, we do not recommend implementing this topology. Regards, Vijul Bhalla
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