Switch 7700 Configuration Guide

VLAN CONFIGURATION

VLAN Overview A virtual local area network (VLAN) groups the devices of a LAN logically, but not

physically, into segments to implement the virtual workgroups.

Using VLAN technology, network managers can logically divide the physical LAN

into different broadcast domains. Every VLAN contains a group of workstations

with the same demands. The workstations of a VLAN do not have to belong to the

same physical LAN segment.

With VLAN technology, the broadcast and unicast traffic within a VLAN will not be

forwarded to other VLANs, so VLAN configurations are very helpful in controlling

network traffic, saving device investment, simplifying network management and

improving security.

Configuring VLAN To configure a VLAN:

■ Create or Delete a VLAN

■ Add Ethernet Ports to a VLAN

■ Specify the Broadcast Suppression Ratio for VLAN

■ Set or Delete VLAN Description Character String

■ Specify or Remove VLAN Interfaces

■ Assign or Delete the IP Address and Mask of a VLAN Interface

■ Shut down or Enable the VLAN Interface

Create or Delete a VLAN

You can use the following command to create or delete a VLAN.

Perform the following configurations in system view.

If the VLAN to be created exists already, enter the VLAN view directly. Otherwise,

create the VLAN first, and then enter the VLAN view.

The vlan_id parameter specifies the VLAN ID. Note that the default VLAN, namely

VLAN 1, cannot be deleted.

Tabl e 1 Create or Delete a VLAN

Operation Command

Create a VLAN and enter the

VLAN view

vlan vlan_id

Delete the specified VLAN undo vlan vlan_id