You can manage VLANs globally in your network by adding, deleting, and refreshing VLANs, and modifying VLAN names and their members globally. By selecting or clearing the global VLAN identification mode box, you can enable or disable the VLAN ID and VLAN name identification mode. When the VLAN ID and VLAN name identification mode is enabled, the global VLAN management page displays multiple VLANs with the same VLAN ID but different VLAN names. When the VLAN ID and VLAN name identification mode is disabled, a VLAN ID uniquely identifies a global VLAN. Therefore, the page for a VLAN ID displays only one VLAN.