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Saturday, November 8, 2014

How to clear switch for new configuration

1. Connect to the console port and enter priviliged EXEC mode.

From your computer terminal connect to the console port of the switch using a console cable. You should see the console prompt that includes the switch's hostname followed by > or #.

If the prompt ends in > you are in user mode. To enter priviliged EXEC mode, type enable.

2. Delete the VLAN database file.

Switch#delete flash:vlan.dat
Delete flash vlan.dat ? [confirm]
Switch#

3. Erase the start-up config from nvram


The startup configuration of switches can be removed using the erase-start up config command.

Switch# erase startup-config
Erasing the nvram filesystem will remove all configuration files! Continue?
[confirm]
[OK]
Erase of nvram: complete
Switch#
Switch# reload

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