Command Line Reference Guide

vlan-stack trunk – specifies a Layer 2 port or port channel as a trunk port to the Stackable
VLAN network.
vlan-stack trunk
Specify a Layer 2 port or port channel as a trunk port to the Stackable VLAN network.
S5000
Syntax
vlan-stack trunk
To remove a trunk port designation from the selected interface, use the no vlan-stack
trunk
command.
Defaults Not configured.
Command Modes INTERFACE
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
FTOS(conf-if-gi-0/42)#switchport
FTOS(conf-if-gi-0/42)#vlan-stack trunk
FTOS(conf-if-gi-0/42)#show config
!
interface GigabitEthernet 0/42
no ip address
switchport
vlan-stack trunk
no shutdown
FTOS(conf-if-gi-0/42)#interface vlan 100
FTOS(conf-if-vl-100)#vlan-stack compatible
FTOS(conf-if-vl-100-stack)#member gigabitethernet 0/42
FTOS(conf-if-vl-100-stack)#show config
!
interface Vlan 100
1287