Shutdown - Cisco Catalyst 2950 Command Reference Manual

Chapter 2 Catalyst 2950 and 2955 Cisco IOS Commands

shutdown

Use the shutdown interface configuration command to disable a port and to shut down the management
VLAN. Use the no form of this command to enable a disabled port or to activate the management VLAN.
Syntax Description
This command has no arguments or keywords.
Command Modes Interface configuration
Command History Release
12.0(5.2)WC(1)
Usage Guidelines
The shutdown interface configuration command for a port causes it to stop forwarding. You can enable
the port with the no shutdown command.
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. The port must first be a member of an active VLAN before it can
be re-enabled.
Only one management VLAN interface can be active at a time. The remaining VLANs are shut down.
In the show running-config command, the active management VLAN interface is the one without the
shutdown command displayed.
When you enter the shutdown command on an LRE switch, the switch disables the interface by
de-activating the MAC interface and the LRE chipset transmitter. Under some circumstances, the power
emitted by LRE switch ports can affect other LRE switch ports. We recommend that ports that are not
connected to CPE devices be shut down by using this command. You can also use this command to
disable access to the switch from a particular port.
Examples This example shows how to disable a port and how to re-enable it:
Switch(config)# interface fastethernet0/1
Switch(config-if)# shutdown
Switch(config-if)# no shutdown
You can verify your settings by entering the show interfaces privileged EXEC command.
0L-10102-01
shutdown
no shutdown
Modification
This command was introduced.
Catalyst 2950 and Catalyst 2955 Switch Command Reference
shutdown
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