# interface

> Manage interfaces.
> Accessed in configuration mode.
> More information: <https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/interface/command/ir-cr-book/ir-i1.html>.

- Configure a VLAN:

`interface vlan {{1}}`

- Set an interface to be active or inactive (this is run inside the interface command):

`{{no shutdown|shutdown}}`