tagged VLANs. When the VLAN-Stack trunk port is also a member of an untagged
VLAN, the port must be in Hybrid mode. Refer to
portmode hybrid
.
In the first example, a VLAN-Stack trunk port is configured and then also made part
of a single-tagged VLAN.
In the second example, the tag protocol identifier (TPID) is set to 8848. The “Gi
3/10” port is configured to act as a VLAN-Stack access port, while the “TenGi 8/0”
port acts as a VLAN-Stack trunk port, switching stackable VLAN traffic for VLAN 10,
while also switching untagged traffic for VLAN 30 and tagged traffic for VLAN 40.
(To allow VLAN 30 traffic, the native VLAN feature is required, by executing the
portmode hybrid
command. Refer to
portmode hybrid
in the
Interfaces
chapter.
Example
Dell(conf-if-gi-0/42)#switchport
Dell(conf-if-gi-0/42)#vlan-stack trunk
Dell(conf-if-gi-0/42)#show config
!
interface GigabitEthernet 0/42
no ip address
switchport
vlan-stack trunk
no shutdown
Dell(conf-if-gi-0/42)#interface vlan 100
Dell(conf-if-vl-100)#vlan-stack compatible
Dell(conf-if-vl-100-stack)#member gigabitethernet 0/42
Dell(conf-if-vl-100-stack)#show config
!
interface Vlan 100
no ip address
vlan-stack compatible
member GigabitEthernet 0/42
shutdown
Dell(conf-if-vl-100-stack)#interface vlan 20
Dell(conf-if-vl-20)#tagged gigabitethernet 0/42
Dell(conf-if-vl-20)#show config
!
interface Vlan 20
no ip address
tagged GigabitEthernet 0/42
shutdown
Dell(conf-if-vl-20)#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
20 Active T Gi 0/42
100 Active M Gi 0/42
Dell(conf-if-vl-20)#
Example
Dell(config)#vlan-stack protocol-type 88A8
Dell(config)#interface gigabitethernet 3/10
Dell(conf-if-gi-3/10)#no shutdown
Dell(conf-if-gi-3/10)#switchport
Dell(conf-if-gi-3/10)#vlan-stack access
Dell(conf-if-gi-3/10)#exit
VLAN Stacking
1329
