Dell PowerConnect 5424 User Manual page 328

The following is an example of the CLI commands:
Console (config)# vlan database
Console (config-vlan)# vlan 23-25
Console (config-vlan)# exit
Console (config)# interface vlan 23
Console (config-if)# name Marketing
Console (config-if)# exit
Console (config)# interface ethernet g8
Console (config-if)# switchport mode access
Console (config-if)# switchport access vlan 23
Console (config-if)# exit
Console (config)# interface ethernet g9
Console (config-if)# switchport mode trunk
Console (config-if)# swithport mode trunk allowed
vlan add 23-25
Console (config-if)# exit
Console (config)# interface ethernet g10
Console (config-if)# switchport mode general
Console (config-if)# switchport general allowed vlan
add 23,25 tagged
Console (config-if)# switchport general pvid 25
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Configuring Device Information