Interface
no shutdown
Administratively enable the interface. Required after configuring a router port.
Works on: Router, SwitchMode: iface
Watch out
Switch access ports default to no shutdown; router ports default to shutdown.
Run this command live
Don't just read it — type no shutdown in a real network simulator in your browser and watch it take effect. No install, no account needed to start.
Frequently asked
What does the "no shutdown" command do?
Administratively enable the interface. Required after configuring a router port.
What's the common gotcha with "no shutdown"?
Switch access ports default to no shutdown; router ports default to shutdown.