Use this procedure to delete an NSNA VLAN.
Prerequisites
NSNA must be globally disabled before you can delete an NSNA VLAN.
Use the following procedure to delete an NSNA VLAN:
From the navigation tree, double-click Security.
From the Security tree, click NSNA.
Select the Globals tab.
Clear the Enabled check box.
From the navigation tree, double-click VLAN.
From the VLAN tree, double click VLANs.
Select the NSNA tab.
Select the VLAN to delete and double click the NsnaColor field.
From the list, select none.
Click Apply.
Select the Basic tab.
Select the VLAN to delete (the VLAN for which the NsnaColor was changed to none).
Click Delete.