Reference Guide

Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
Prior to using this command, you must execute the switchport command to
place the interface in Layer 2 mode.
To remove the trunk port designation, the port must first be removed (using the no
member interface command) from all stackable VLAN-enabled VLANs.
A VLAN-Stack trunk port is also allowed to be configured as a tagged port and as
an untagged port for single-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 Example 1 below, a VLAN-Stack trunk port is configured and then also made part
of a single-tagged VLAN.
In Example 2 below, 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 Interfaces.
Example 1
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
1368
VLAN Stacking