Basic Vlan Interface Configuration - H3C S5500-EI series Operation Manual

Operation Manual – VLAN
H3C S5500-EI Series Ethernet Switches
Note:
As the default VLAN, VLAN 1 cannot be created or removed.
You cannot manually create or remove reserved VLANs, which are reserved for
specific functions.
Dynamic VLANs cannot be removed using the undo vlan command.
If a VLAN has a QoS policy configured, the VLAN cannot be removed.
If a VLAN is configured as a remote-probe VLAN for remote port mirroring, it cannot
be removed using the undo vlan command unless its remote-probe VLAN
configuration is removed.

1.3 Basic VLAN Interface Configuration

Hosts of different VLANs cannot communicate directly. That is, routers or Layer 3
switches are needed for packets to travel across different VLANs. VLAN interfaces are
used to forward VLAN packets on Layer 3.
VLAN interfaces are Layer 3 virtual interfaces (which do not exist physically on devices)
used for Layer 3 interoperability between different VLANs. Each VLAN can have one
VLAN interface. Packets of a VLAN can be forwarded on network layer through the
corresponding VLAN interface. As each VLAN forms a broadcast domain, a VLAN can
be an IP network segment and the VLAN interface can be the gateway to enable IP
address-based Layer 3 forwarding.
Follow these steps to configure VLAN interface basic attributes:
Enter system view
Create a VLAN interface
or enter VLAN interface
view
Configure an IP address
for the VLAN interface
Specify the descriptive
string for the VLAN
interface
To do...
system-view
interface Vlan-interface
vlan-interface-id
ip address ip-address
{ mask | mask-length }
[ sub ]
description text
Use the command...
1-5
Chapter 1 VLAN Configuration
Remarks
—
Required
This command leads you
to VLAN interface view if
the VLAN interface
already exists.
Optional
Not configured by default
Optional
VLAN interface name is
used by default, for
example, "Vlan-interface1
Interface".