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We are looking to replace one Juniper QFX5200, Broadcom Tomahawk based switch with two 93180YC-FX/FX3 switches.On this Juniper switch, there is a GRE tunnel providing IPv4 and IPv6 transport, also running OSPF and OSPFv3. From Cisco Nexus 9000 NX-OS ...
I would suggest you use CAT 6a cable to connect the two. Use Cisco 1000BASE-T Copper SFP on C3560.You may save a 10G port for something works at that speed.