You can verify your settings by entering the show interfaces privileged EXEC command. These examples show how to disable and re-enable a port: Switch(config)# interface gigabitethernet0/2 Switch(config-if)# shutdown Switch(config)# interface gigabitethernet0/2 Switch(config-if)# no shutdown An interface that has been shut down is shown as administratively down in the display. To see if an interface is disabled, use the show interfaces privileged EXEC command. This command also marks the interface as unavailable.
The shutdown command disables all functions on the specified interface. The port must first be a member of an active VLAN before it can be re-enabled. The no shutdown command has no effect if the port is a static-access port assigned to a VLAN that has been deleted, suspended, or shut down. You can enable the port with the no shutdown command. The shutdown command causes a port to stop forwarding. Interface configuration Command History Release This command has no arguments or keywords.
Use the no form of this command to restart a disabled interface. Use the shutdown interface configuration command to disable an interface. spanning-tree portfast (interface configuration).spanning-tree portfast (global configuration).spanning-tree etherchannel guard misconfig.
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