Chapter 18
| VLAN Commands
Configuring VLAN Interfaces
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Related Commands
show vlan (482)
Configuring VLAN Interfaces
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.
Table 93: Commands for Configuring VLAN Interfaces
Command Function Mode
interface vlan Enters interface configuration mode for a specified VLAN IC
switchport acceptable-
frame-types
Configures frame types to be accepted by an interface IC
switchport allowed vlan Configures the VLANs associated with an interface IC
switchport forbidden vlan Configures forbidden VLANs 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
switchport priority default Sets a port priority for incoming untagged frames IC
vlan-trunking Allows unknown VLANs to cross the switch IC
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