Configuring basic settings of a vlan interface – H3C Technologies H3C SecPath F1000-E User Manual
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Step Command
Remarks
5.
Configure the
description of the VLAN. description text
Optional.
By default, the description of a VLAN is its
VLAN ID. For example, VLAN 0001.
NOTE:
As the default VLAN, VLAN 1 cannot be created or removed.
Configuring basic settings of a VLAN interface
For hosts of different VLANs to communicate, you must use a router or Layer 3 switch to perform Layer 3
forwarding. To achieve this, VLAN interfaces are used.
VLAN interfaces are virtual interfaces used for Layer 3 communication between different VLANs. 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 it as the gateway of the VLAN to forward traffic
destined for an IP subnet different from that of the VLAN.
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 } [ sub ]
Optional.
By default, no IP address is assigned to
any VLAN interface.
4.
Configure the description
of 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.
Shut down the VLAN
interface.
shutdown
Optional.
By default, a VLAN interface is in the up
state. 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, however, will be in
the DOWN (Administratively) state until
you bring it up, regardless of how the
state of the ports in the VLAN changes.