107
They do not exist as physical entities on devices. For each VLAN, you can create one VLAN
interface. You can assign the VLAN interface an IP address and specify the IP address as the
gateway address for the devices in the VLAN, so that traffic can be routed to other IP subnets.
Configuration procedure
To configure basic settings of a VLAN interface:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Create a VLAN interface
and enter VLAN interface
view.
interface vlan-interface
vlan-interface-id
If the VLAN interface already exists, you
enter its view directly.
3.
Assign an IP address to
the VLAN interface.
ip
address
ip-address
{
mask
|
mask-length
}
Optional.
By default, no IP address is assigned to
any VLAN interface.
4.
Configure a description for
the VLAN interface.
description text
Optional.
By default, the description of a VLAN is the
VLAN interface name. For example,
Vlan-interface1 Interface
.
5.
Set the MTU for the VLAN
interface.
mtu
size
Optional.
By default, the MTU is 1500 bytes.
6.
Restore the default
settings for the VLAN
interface.
default
Optional.
7.
Cancel the action of
manually shutting down
the VLAN interface.
undo shutdown
Optional.
By default, a VLAN interface is not
manually shut down. The VLAN interface is
up if one or more ports in the VLAN is up,
and goes down if all ports in the VLAN go
down.
A VLAN interface shut down with the
shutdown
command is in the DOWN
(Administratively) state until you bring it up,
regardless of how the state of the ports in
the VLAN changes.
NOTE:
Before you create a VLAN interface for a VLAN, create the VLAN.
Configuring port-based VLANs
Introduction to port-based VLAN
Port-based VLANs group VLAN members by port. A port forwards traffic for a VLAN only after it is
assigned to the VLAN.
Port link type
You can configure the link type of a port as access, trunk, or hybrid. The link types use the following
VLAN tag handling methods: