I have a small network with about 70 PC's. I have our main office and three other buildings connected with fiber. I have 1 managed 10/100/1000 switch and 3 unmanaged 10/100 switches. I want to segment my network but am unsure of how to do this. Do connect my servers to the 10/100/1000 switch and create VLAN's to connect my 3 other switches to the 10/100/1000 switch and then segment the 3 switches or am I way off here?