CLI Reference Guide-R02

Chapter 18 | VLAN Commands
Configuring VLAN Interfaces
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interface vlan This command enters interface configuration mode for VLANs, which is used to
configure VLAN parameters for a physical interface. Use the no form to change a
Layer 3 normal VLAN back to a Layer 2 interface.
Syntax
[no] interface vlan vlan-id
vlan-id - ID of the configured VLAN. (Range: 1-4094)
Default Setting
None
Command Mode
Global Configuration
Command Usage
◆ Creating a “normal” VLAN with the vlan command initializes it as a Layer 2
interface. To change it to a Layer 3 interface, use the interface command to
enter interface configuration for the desired VLAN, enter any Layer 3
configuration commands, and save the configuration settings.
◆ To change a Layer 3 normal VLAN back to a Layer 2 VLAN, use the no interface
command.
Example
The following example shows how to set the interface configuration mode to
VLAN 1, and then assign an IP address to the VLAN:
Console(config)#interface vlan 1
Console(config-if)#ip address 192.168.1.254 255.255.255.0
Console(config-if)#
switchport forbidden vlan Configures forbidden VLANs for an interface IC
switchport gvrp Enables GVRP for an interface IC
switchport ingress-filtering Enables ingress filtering on an interface IC
switchport mode Configures VLAN membership mode for an interface IC
switchport native vlan Configures the PVID (native VLAN) of an interface IC
vlan-trunking Allows unknown VLAN groups to pass through a specified
interface
IC
switchport priority default Sets a port priority for incoming untagged frames IC
Table 97: Commands for Configuring VLAN Interfaces (Continued)
Command Function Mode