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there is something I don't understand. Some switches have SFP ports, it means that you can connect fiber or rj-45 cables I believe?
Some switches like Nexus 5600 have unified ports. So they can support fiber and rj-45 (and FCOE).
What's the difference between SFP and unified, just the FCOE support?
Unified ports allow you to move from an existing segregated platform approach where you choose LAN and SAN port optionsto transition to a single, unified fabric that istransparent and consistent with existing practices and management software. You will need to swap SFPs (for now, at least) and reconfigure the port, and you must cycle/reset the module in which the ports reside in order to switch personality. Personally, I think the Unified Port functionality is extremely useful.
