CLI Reference Guide-R01

Chapter 20 | VLAN Commands
Configuring VLAN Interfaces
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Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
◆ When changing the PVID for a port using access mode, the port will
automatically join the new PVID VLAN and leave the VLAN which it had joined
before.
◆ When using Access mode, and an interface is assigned to a new VLAN, its PVID
is automatically set to the identifier for that VLAN.
◆ The PVID can be set to any VLAN that the port does not join when using hybrid
or trunk mode, and ingress filtering is disabled.
◆ The PVID can only be set to a VLAN that the port joins when using hybrid or
trunk mode, and ingress filtering is enabled.
Example
The following example shows how to set the PVID for port 1 to VLAN 3:
Console(config)#interface ethernet 1/1
Console(config-if)#switchport native vlan 3
Console(config-if)#
vlan-trunking This command allows unknown VLAN groups to pass through the specified
interface. Use the no form to disable this feature.
Syntax
[no] vlan-trunking
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
◆ Use this command to configure a tunnel across one or more intermediate
switches which pass traffic for VLAN groups to which they do not belong.
The following figure shows VLANs 1 and 2 configured on switches A and B, with
VLAN trunking being used to pass traffic for these VLAN groups across switches
C, D and E.