I'm sorry if it's a silly question but in networking things I'm a complete newbie.
We have some switches (DELL) two of them are connected with SFP (fiber) along a long hall, the rest are stacked via the old stacking cable behind the switches.
Something like this:
Would be possible to buy Cisco Catalyst switches (or other brands) and stack/uplink them to the existing DELLs via SFP?, the idea would be to replace the old Dell ones (with the old stacking cable), but depending on the compatibility of the SFP to link the two switches via Fiber.
A SFP works only with optic fiber?
Thank you for sharing your wisdom!