I'm having a difficult time understanding the difference between tagging and untagging vlans. When to use each one.
I've read online articles but still not getting it.
let me try to use an example. If I have 3 vlans. vlan1 for my main network, vlan2 for my wireless-company wifi, and vlan3 for my wireless-guestwifi. and let say I have 5 switches. How would I configure my switches? which ports would be tagged and untaged? please explain in plain English . please see attached jpeg.