http://privexioc67u24lsmssoeixnml2exr3les4pbtyqtmv3zvonvcc72jyd.onion/articles/suggested-switches-routers-colo
Unmanaged switches are generally purely Layer 2 devices, they join all connected devices to the same layer 2 segment, and have no knowledge of higher level concepts such as IP addresses, IP routing, VLANs, gateways, etc. - they only care about network ports (Ethernet/SFP+), and MAC addresses.