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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
Enter system view.
1.
Create a VLAN interface
2.
and enter VLAN interface
view.
Assign an IP address to
3.
the VLAN interface.
Configure a description for
4.
the VLAN interface.
Set the MTU for the VLAN
5.
interface.
Restore the default
6.
settings for the VLAN
interface.
Cancel the action of
7.
manually shutting down
the VLAN interface.
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:
Command
system-view
interface vlan-interface
vlan-interface-id
ip address ip-address
{ mask | mask-length }
description text
mtu size
default
undo shutdown
107
Remarks
N/A
If the VLAN interface already exists, you
enter its view directly.
Optional.
By default, no IP address is assigned to
any VLAN interface.
Optional.
By default, the description of a VLAN is the
VLAN interface name. For example,
Vlan-interface1 Interface.
Optional.
By default, the MTU is 1500 bytes.
Optional.
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.
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