Reset to factory default: Extreme Networks Summit, Cisco Ctalist 2960, Ericsson ECN330

Returning the switch to the default configuration results in the loss of all existing configurations. It can be dangerous in you network or very useful when you buy used equipment in eBay ;)

Extreme Networks Summit
To return the switch configuration to factory defaults¹, use the following command:

unconfig switch

This command resets the entrie configuration except user accounts and passwords. To reset all parameters, use the following command:

unconfig switch all