Resetting Switch Configuration

1900 Series Switch

1900switch#delete vtp	Removes VLAN Trunking Protocol (VTP) information
1900switch#delete nvram	Resets switch back to factory defaults
1900switch>en
1900switch#reload	Restarts the switch

2900/2950 Series Switch

switch#delete flash:vlan.dat	Removes VLAN database from Flash memory
Delete filename [vlan.dat]?	Press
Delete flash:vlan.dat? [confirm]	Reconfirm by pressing
Switch#erase startup-config	Erases file from NVRAM
<output omitted>
Switch#reload	Restarts the switch