11-15
Catalyst2950 and Catalyst2955 Switch Software Configuration Guide
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Chapter11 Configuring Interface Char act eristics Monitoring and Maintaining the Interfaces
Use the no description interface configuration command to delete the description.
This example shows how to add a description on a port and to verify the de scri pti on:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fastethernet0/4
Switch(config-if)# description Connects to Marketing
Switch(config-if)# end
Switch# show interfaces fastethernet0/4 description
Interface Status Protocol Description
Fa0/4 up down Connects to Marketing
Monitoring and Maintaining the Interfaces
You can perform the tasks in these sections to monitor and maintain interfaces:
•Monitoring Interface and Controller Status, page 11-15
•Clearing and Resetting Interfaces and Counters, page 11-16
•Shutting Down and Restarting the Interface, page 11-17

Monitoring Interface and Controller Status

Commands entered at the privileged EXEC prompt display information about the interface, includin g
the version of the software and the hardware, the controller status, and statistics about the interfaces.
Table11-2 lists some of these interface monitoring commands. (You can display the full list of show
commands by using the show ? command at the privileged EXEC prompt.) These commands are fully
described in the Cisco IOS Interface Command Reference for Cisco IOS Release 1 2. 1.
Step5 show interfaces interface-id description
or
show running-config
Verify your entry.
Step6 copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose
Table11-2 show Commands for Interfaces
Command Purpose
show interfaces [interface-id] Display the status and configuration of all interfaces or a sp ec ific
interface.
show interfaces [interface-id] capabilities [module
{module-number}] Display the capabilities of an interface. The module number is always
0. If you enter an interface ID, the module keyword is not visible.
show interfaces interface-id status [err-disabled] Display interface status or a list of interfaces in error-disabled state.
show interfaces [interface-id] switchport Display administrative and operational status of switching
(nonrouting) ports.
show interfaces [interface-id] description Display the description configured on an inter face or a ll interf aces and
the interface status.