If you are a network administrator, then you know that deleting VLANs can be a difficult task. It can be difficult to determine which VLANs need to be deleted, and it can be even more difficult to delete them all at once. One way to delete VLANs is to use the command line. The command line is a powerful tool that administrators use to manage their networks. The command line allows you to do things that are not possible with other methods, such as deleting VLANs one by one or deleting them all at once. To delete a VLAN on the command line, type the following command: vlan-delete 1