!
interface TenGigabitEthernet 2/12
no ip address
switchport
vlan-stack trunk
no shutdown
Enable VLAN-Stacking for a VLAN
To enable VLAN-Stacking for a VLAN, use the following command.
• Enable VLAN-Stacking for the VLAN.
INTERFACE VLAN mode
vlan-stack compatible
Example of Viewing VLAN Stack Member Status
To 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.
Dell#show vlan
Codes: * - Default VLAN, G - GVRP VLANs
NUM Status Q Ports
* 1 Active U Te 1/0-5,18
2 Inactive
3 Inactive
4 Inactive
5 Inactive
6 Active M Po1(Te 1/14-15)
M Te 1/13
Dell#
Configuring the Protocol Type Value for the Outer VLAN Tag
The 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 mode
vlan-stack protocol-type
The default is 9100.
To display the S-Tag TPID for a VLAN, use the show running-config command from EXEC privilege
mode. The system displays the S-Tag TPID only if it is a non-default value.
Configuring 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.
822 Service Provider Bridging