Dell Force10 MXL Blade - System Time and Date; Overview; Commands

Virtual LANs (VLAN) | 629
Except for hybrid ports, only a tagged interface can be a member of multiple VLANs. You can assign
hybrid ports to two VLANs if the port is untagged in one VLAN and tagged in all others.
When you remove a tagged interface from a VLAN (using the
no tagged interface command), it remains
tagged only if it is a tagged interface in another VLAN. If you remove the tagged interface from the only
VLAN to which it belongs, the interface is placed in the default VLAN as an untagged interface.
To move untagged interfaces from the default VLAN to another VLAN, use the
untagged command and
follow these steps
The
no untagged interface command removes the untagged interface from a port-based VLAN and places
the interface in the default VLAN. You cannot use the
no untagged interface command in the default VLAN.
Figure 37-5 shows the steps and commands to move an untagged interface from the default VLAN to
another VLAN.
Figure 37-5. Example of Moving an Untagged Interface to Another VLAN
Step Command Syntax Command Mode Purpose
1
interface vlan vlan-id
CONFIGURATION Access INTERFACE VLAN mode of the VLAN to
which you want to assign the interface.
2
untagged interface INTERFACE Configure an interface as untagged. This command is
available only in VLAN interfaces.
FTOS#show vlan
Codes: * - Default VLAN, G - GVRP VLANs
NUM Status Q Ports
* 1 Active U Tengig 3/2
2 Active T Po1(So 0/0-1)
T Tengig 3/0
3 Active T Po1(So 0/0-1)
T Tengig 3/1
4 Inactive
FTOS#conf
FTOS(conf)#int vlan 4
FTOS(conf-if-vlan)#untagged tengig 3/2
FTOS(conf-if-vlan)#show config
!
interface Vlan 4
no ip address
untagged Tengigabitethernet 3/2
FTOS(conf-if-vlan)#end
FTOS#show vlan
Codes: * - Default VLAN, G - GVRP VLANs
NUM Status Q Ports
* 1 Inactive
2 Active T Po1(So 0/0-1)
T Tengig 3/0
3 Active T Po1(So 0/0-1)
T Tengig 3/1
4 Active U Tengig 3/2
FTOS#
Use the show vlan command to determine interface
status. Interface (tengig 3/2) is untagged and in the
Default VLAN (vlan 1).
In a port-based VLAN (vlan 4), use the untagged
command to add the interface to that VLAN.
The show vlan command output displays the
interface’s changed status (tengig 3/2). Since the
Default VLAN no longer contains any interfaces, it is
listed as inactive.