I'm actually going through something like this now at one of my primaries. I think I've ran this through Gemini about 100 times...!!!
DfE says you can have whatever switches you want, but if they're stackable, they should operate at 40Gbps (Meraki has this capability). If they cannot truly stack (like UniFi), then the connections between each switch should be 2x10Gbps SFPs.
I think my main core should be;
LGfL-> (via Cat6) Dream Machine Pro Max -> (via 2x DAC cable) Pro Aggregator -> (via 2x DAC cable, each) Switches
Then I've got a cab downstairs. I read it as it should be 2x 10gbps from the core per switch, but Gemini says you can do 2x fibre to an aggregation switch and then 2x DAC to each switch, as this still satisfies the 2x10gbps back to the core.
Core -> (via 2x 10GBps fibre) Aggregator -> (via 2x DAC cable, each) Switches
And our IT suite has a cab.
Core -> (via 2x 10GBps fibre) -> 48 port switch
The standards are crazy for a primary school, but it will depend on your setup. I haven't gone ahead with any of this yet, but I'm trying to get ahead of it and see what makes sense.
