I am adding 4 HP switches into an environment with vlans. I need to separate 2 data networks and 1 voice network. I am rusty on the tagging, untagged and trunk needs. Each vlan will have its own subnet. If all ports come untagged with a default vlan 1 and I need 15 ports to be on a separate vlan do I just tag them with vlan 2 and leave the untagged on or do I have to remove them from untagged?
Does each uplink port need to be trunked or can I just tag the port with all vlans