Dell PowerEdge FX2/FX2s - Manual (Page 166)

Tagged interfaces can belong to multiple VLANs, while untagged interfaces can
only belong to one VLAN at a time.
When two or more ports configured for VLANs form a LAG, the resulting LAG is a
tagged member of all the configured VLANs and an untagged member of the VLAN
to which the port with the lowest port ID belongs.
For example, if port 0/33 is an untagged member of VLAN 2 and port 0/41 is an
untagged member of VLAN 3, the resulting LAG consisting of the two ports is an
untagged member of VLAN 2 and a tagged member of VLANs 2 and 3.
Example
Dell(conf-if-te-0/2)#vlan untagged ?
<1-4094> Untagged VLAN id
Dell(conf-if-te-0/2)#
Dell(conf-if-te-0/2)#vlan untagged 4094
Dell(conf-if-te-0/2)#show config
!
interface TenGigabitEthernet 0/2
mtu 12000
vlan untagged 4094
!
port-channel-protocol LACP
port-channel 1 mode active
!
protocol lldp
advertise management-tlv system-name
dcbx port-role auto-downstream
no shutdown
Dell(conf-if-te-0/2)#
Related
Commands
interface vlan — Configures a VLAN.
vlan tagged — Specifies which interfaces in a VLAN are tagged.
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