Service Provider Bridging | 955FTOS Options for Trunk Ports802.1ad trunk ports may also be tagged members of a VLAN so that it can carry single and double-taggedtraffic.You can enable trunk ports to carry untagged, single-tagged, and double-tagged VLAN traffic by makingthe 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 VLAN100 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 VLANsStep Task Command Syntax Command Mode1 Configure a trunk port to carry untagged, single-tagged, anddouble-tagged traffic by making it a hybrid port.Note: Note: On the C-Series and S-Series, a trunk portcan be added to an 802.1Q VLAN as well as a StackingVLAN only when the TPID 0x8100.portmode hybrid INTERFACE2 Add the port to a 802.1Q VLAN as tagged or untagged. [tagged | untagged] INTERFACE VLANFTOS(conf)#int gi 0/1FTOS(conf-if-gi-0/1)#portmode hybridFTOS(conf-if-gi-0/1)#switchportFTOS(conf-if-gi-0/1)#vlan-stack trunkFTOS(conf-if-gi-0/1)#show config!interface GigabitEthernet 0/1no ip addressportmode hybridswitchportvlan-stack trunkshutdownFTOS(conf-if-gi-0/1)#interface vlan 100FTOS(conf-if-vl-100)#untagged gigabitethernet 0/1FTOS(conf-if-vl-100)#interface vlan 101FTOS(conf-if-vl-101)#tagged gigabitethernet 0/1FTOS(conf-if-vl-101)#interface vlan 103FTOS(conf-if-vl-103)#vlan-stack compatibleFTOS(conf-if-vl-103-stack)#member gigabitethernet 0/1FTOS(conf-if-vl-103-stack)#do show vlanCodes: * - Default VLAN, G - GVRP VLANsQ: U - Untagged, T - Taggedx - Dot1x untagged, X - Dot1x taggedG - GVRP tagged, M - Vlan-stackNUM Status Description Q Ports* 1 Inactive100 Inactive U Gi 0/1101 Inactive T Gi 0/1103 Inactive M Gi 0/1
