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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

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1 Answer 1

I can answer in Cisco terms.

Any connection that connects two switches together should be configured as a trunk. I don't know if HP allows it, but you can change which VLANs are allowed to be transported on that trunk.

You should also be able to set up a native VLAN. The native VLAN is the VLAN that transports untagged traffic.

Configure your access ports (the ones connecting the PC's to the switch) with the appropriate VLAN.

Remember, if you want to communicate between VLANs, you will need an Inter-VLAN routing solution (such as a router or a layer 3 switch)

Generally, you can only tag a switchport with one access VLAN, and one voice VLAN.

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