3Com Switch 7700, Configuration Manual

Page: 55 / 390

Configuring VLANs 47
Setting or Deleting the VLAN Description Character String
You can use the following command to set or delete the VLAN description
character string.
The description character strings, such as workgroup_name and
department_name , are used to distinguish the different VLANs.
Perform the following configuration in VLAN view.
By default, the string parameter is null.
Specifying or Removing VLAN Interfaces
You can use the following command to specify or remove the VLAN interfaces. To
implement the network layer function on a VLAN interface, the VLAN interface
should be set the IP address and mask. For the corresponding configuration, refer
to “Network Protocol Operation” on page 59.
Perform the following configurations in system view.
Create a VLAN before creating an interface for it.
Shutting Down or Enabling a VLAN Interface
You can use the following command to shut down or enable VLAN interface.
Perform the following configuration in VLAN interface view.
The operation of shutting down or enabling the VLAN interface has no effect on
the UP/DOWN status of the Ethernet ports in the VLAN.
By default, when the status of all Ethernet ports in a VLAN is DOWN, the status of
the VLAN interface is DOWN also so the VLAN interface is shut down. When the
Table 3 Setting and Deleting VLAN Description Character String
Operation Command
Set the description character
string for the specified VLAN description string
Delete the description
character string of the
specified VLAN undo description
Table 4 Specifying and Removing VLAN interfaces
Operation Command
Create a new VLAN interface
and enter VLAN interface view interface vlan-interface vlan_id
Remove the specified VLAN
interface undo interface vlan-interface vlan_id
Table 5
Shutting Down or Enabling a VLAN Interface
Operation Command
Shut down the VLAN interface shutdown
Enable the VLAN interface undo shutdown