Shutting Down And Restarting The Interface - Cisco 2950 - Catalyst Switch Configuration Manual

Chapter 11 Configuring Interface Characteristics
This example shows how to clear and reset a port:
Switch# clear interface fastethernet0/5

Shutting Down and Restarting the Interface

Shutting down an interface disables all functions on the specified interface and marks the interface as
unavailable on all monitoring command displays. This information is communicated to other network
servers through all dynamic routing protocols. The interface is not mentioned in any routing updates.
Beginning in privileged EXEC mode, follow these steps to shut down an interface:
Command
Step 1 configure terminal
Step 2
interface {vlan vlan-id} | {{fastethernet | gigabitethernet}
interface-id} | {port-channel port-channel-number}
Step 3
shutdown
Step 4 end
Step 5 show running-config
Use the no shutdown interface configuration command to restart the interface.
When the shutdown interface configuration command is entered on an LRE interface, the LRE link is
shut down. To shut down the 10/100 Ethernet ports on CPE device, use the cpe shutdown [port port-id]
interface configuration command.
This example shows how to shut down a port:
Switch# configure terminal
Switch(config)# interface fastethernet0/5
Switch(config-if)# shutdown
Switch(config-if)#
*Sep 30 08:33:47: %LINK-5-CHANGED: Interface FastEthernet0/5, changed state to a
administratively down
This example shows how to re-enable a port:
Switch# configure terminal
Switch(config)# interface fastethernet0/5
Switch(config-if)# no shutdown
Switch(config-if)#
*Sep 30 08:36:00: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to up
To verify that an interface is disabled, enter the show interfaces privileged EXEC command. A disabled
interface appears as administratively down in the show interfaces command output.
78-11380-10
Purpose
Enter global configuration mode.
Select the interface to be configured.
Shut down an interface.
Return to privileged EXEC mode.
Verify your entry.
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
Monitoring and Maintaining the Interfaces
11-17