Enable VLAN-Stacking for a VLANTo enable VLAN-Stacking for a VLAN, use the following command.• Enable VLAN-Stacking for the VLAN.INTERFACE VLAN modevlan-stack compatibleExample of Viewing VLAN Stack Member StatusTo display the status and members of a VLAN, use the show vlan command from EXEC Privilege mode. Members of a VLAN-Stacking-enabled VLAN are marked with an M in column Q.Configuring the Protocol Type Value for the Outer VLAN TagThe tag protocol identifier (TPID) field of the S-Tag is user-configurable.To set the S-Tag TPID, use the following command.• Select a value for the S-Tag TPID.CONFIGURATION modevlan-stack protocol-typeThe default is 9100.To display the S-Tag TPID for a VLAN, use the show running-config command from EXEC privilege mode. Dell Networking OSdisplays the S-Tag TPID only if it is a non-default value.Configuring Dell Networking OS Options for Trunk Ports802.1ad 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.To configure trunk ports, use the following commands.1 Configure a trunk port to carry untagged, single-tagged, and double-tagged traffic by making it a hybrid port.INTERFACE modeportmode hybrid2 Add the port to a 802.1Q VLAN as tagged or untagged.INTERFACE VLAN mode[tagged | untagged]Example of Configuring a Trunk Port as a Hybrid Port and Adding it to Stacked VLANsIn the following example, TenGigabitEthernet 1/1/1/1 is 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.Dell(conf)#interface tenigabitethernet 1/1/1/1Dell(conf-if-te-1/1/1/1)#portmode hybridDell(conf-if-te-1/1/1/1)#switchportDell(conf-if-te-1/1/1/1)#vlan-stack trunkDell(conf-if-te-1/1/1/1)#show config!798 Service Provider Bridging
