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FTOS Options for Trunk Ports
802.1ad trunk ports may also be tagged members of a VLAN so that it can carry single and double-tagged
traffic.
You can enable trunk ports to carry untagged, single-tagged, and double-tagged VLAN traffic by making
the trunk port a hybrid port.
In Figure 46-5 GigabitEthernet 0/1 a trunk port that is configured as a hybrid port and then added to VLAN
100 as untagged VLAN 101 as tagged, and VLAN 103, which is a stacking VLAN.
Figure 46-5. Hybrid Port as VLAN-Stack Trunk Port and as Member of other VLANs
Step Task Command Syntax Command Mode
1 Configure a trunk port to carry untagged, single-tagged, and
double-tagged traffic by making it a hybrid port.
Note: Note: On the C-Series and S-Series, a trunk port
can be added to an 802.1Q VLAN as well as a Stacking
VLAN only when the TPID 0x8100.
portmode hybrid
INTERFACE
2 Add the port to a 802.1Q VLAN as tagged or untagged. [tagged | untagged] INTERFACE VLAN
FTOS(conf)#int gi 0/1
FTOS(conf-if-gi-0/1)#portmode hybrid
FTOS(conf-if-gi-0/1)#switchport
FTOS(conf-if-gi-0/1)#vlan-stack trunk
FTOS(conf-if-gi-0/1)#show config
!
interface GigabitEthernet 0/1
no ip address
portmode hybrid
switchport
vlan-stack trunk
shutdown
FTOS(conf-if-gi-0/1)#interface vlan 100
FTOS(conf-if-vl-100)#untagged gigabitethernet 0/1
FTOS(conf-if-vl-100)#interface vlan 101
FTOS(conf-if-vl-101)#tagged gigabitethernet 0/1
FTOS(conf-if-vl-101)#interface vlan 103
FTOS(conf-if-vl-103)#vlan-stack compatible
FTOS(conf-if-vl-103-stack)#member gigabitethernet 0/1
FTOS(conf-if-vl-103-stack)#do show vlan
Codes: * - Default VLAN, G - GVRP VLANs
Q: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
G - GVRP tagged, M - Vlan-stack
NUM Status Description Q Ports
* 1 Inactive
100 Inactive U Gi 0/1
101 Inactive T Gi 0/1
103 Inactive M Gi 0/1