I'm trying to connect an Arista 7170-64C and a FortiSwitch-148F using a Cisco 40G to 4x10G breakout cable. Both sides see the plugged in modules, but the link(s) don't come up. When I run 'get switch modules status' on the FortiSwitch, I get an 'Unsupported by module' message on the ports where the breakout cable is plugged in. Is there some setting that I need to enable to get it to work, or must I use a Fortinet-coded cable for this? Does one even exist that could bridge a 100G port to a 10G port?
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