When we are configuring Cisco Switches and Cisco routers, sometimes we need to set the interface to default settings. Using the “default interface” configuration command we can achieve the result. This command is very handy and can be used on any Cisco Router or a Cisco Switch.

In the following example I want the default configuration for the interface fast Ethernet 0/10 in the Cisco Catalyst 3500 Series Switch. By using the “default interface fast Ethernet 0/10″ I removed all the configuration of the interface

Very useful command especially when we need to remove the complete configuration of the interface only.