4-3
PA-A2 ATM CES Port Adapter Installation and Configuration
OL3460-01
Chapter 4 Configuring the PA-A2 ATM CES Port Adapter
PA-A2 ATM CES Configurations
Shutting Down an Interface
Before you remove an interface that you will not replace, replace interface cables, or replace port
adapters, use the shutdown command to shut down (disable) the interfaces to prevent anomalies when
you reinstall the new port adapter or reconfigured port adapter. When you shut down an interface, it is
designated administratively down in the show command displays.
Follow these steps to shut down an interface:
Step 1
Enter the privileged level of the EXEC command interpreter (also called enable mode). (See the
“Using
the EXEC Command Interpreter” section on page 4-1
for instructions.)
Step 2
At the privileged-level prompt, enter configuration mode and specify that the console terminal is the
source of the configuration subcommands, as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Step 3
Shut down interfaces by entering the interface command (followed by the interface type and the
interface address of the interface), and then enter the shutdown command. See
“Using the show
interfaces Command” section on page 4-17
for the command syntax.
When you have finished, press Ctrl-Z—hold down the Control key while you press Z—or enter end or
exit to exit configuration mode and return to the EXEC command interpreter.
Note
If you need to shut down additional interfaces, enter the interface command (followed by the
interface type and the interface address of the interface) for each of the interfaces on your port
adapter. Use the no shutdown command to enable the interface.
Step 4
Write the new configuration to NVRAM as follows:
Router# copy running-config startup-config
[OK]
Router#
The system displays an OK message when the configuration has been stored in NVRAM.
Step 5
Verify that new interfaces are now in the correct state (shut down) using the show interfaces
command
(followed by the interface type and the interface address of the interface) to display the specific
interface. The
“Using the show interfaces Command” section on page 4-17
provides examples.
Step 6
Reenable interfaces by doing the following:
a.
Repeat Step 3 to reenable an interface. Substitute the no shutdown command for the shutdown
command.
b.
Repeat Step 4 to write the new configuration to memory.
Use the copy running-config startup-config command.
c.
Repeat Step 5 to verify that the interfaces are in the correct state. Use the show interfaces command
followed by the interface type and interface address of the interface.
For complete descriptions of software configuration commands, refer to the publications listed in the
“Related Documentation” section on page viii
.
