Dell PowerConnect 3424 User Manual page 304

The following is an example of the CLI commands:
console(config)# vlan database
console(config-vlan)# vlan 23-25
console(config-vlan)# end
console(config)# interface vlan 23
console(config-if)# name Marketing
console(config-if)# end
console(config)# interface ethernet 1/e8
console(config-if)# switchport mode access
console(config-if)# switchport access vlan 23
console(config-if)# end
console(config)# interface ethernet 1/e9
console(config-if)# switchport mode trunk
console(config-if)# switchport mode trunk allowed vlan
add 23-25
console(config-if)# end
console(config)# interface ethernet 1/e11
console(config-if)# switchport mode general
console(config-if)# switchport general allowed vlan add
23,25 tagged
console(config-if)# switchport general pvid 25
304
Configuring Switch Information