Channelized T1 Port Adapter Installation and Configuration 21
Configuring 2CT1 Interfaces
Follow these steps to shut down an interface:
Step 1
Enter the privileged level of the EXEC command interpreter. (See the ““Using the EXEC
Command Interpreter” section on page 18” for instructions.)
Step 2
At the privileged-level prompt, enter configuration mode and specify that the console
terminal will be the source of the configuration commands as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Step 3
Specify the slot/port address of the controller that you want shut down by entering the
command controller, followed by the type (t1) and chassis slot number/port adapter
number/interface port number. The example that follows is for a 2CT1 in chassis slot 3:
Router(config)# controller t1 3/1/0
Step 4
Enter the shutdown command as follows:
Router(config-cont)# shutdown
Step 5
To shut down existing individual controller interfaces, enter the slot/port:channel-group
or pri-group address of each interface followed by the shutdown command. When you
have entered all the interfaces to be shut down, press Ctrl-Z (hold down the Control key
while you press Z) to exit configuration mode and return to the EXEC command
interpreter prompt as follows:
Router(config)# interface serial 3/1/0:0
Router(config-if)# shutdown
Ctrl-Z
Router#
Step 6
Write the new configuration to memory as follows:
Router# copy running-config startup-config
[OK]
Router#
The system displays an OK message when the configuration has been stored.
Step 7
To verify that new interfaces are now in the correct state (shutdown), use the show
interfaces serial chassis slot number/port adapter number/interface port
number:channel-group or pri-group command to display the specific interface, or use the
show controller command, followed by the type (t1) and chassis slot number/port
adapter number/interface port number, to display the status of all interfaces of the
controller.
Router# show interfaces serial 3/1/0:0
Serial3/1/0:0 is down, line protocol is down
Hardware is cxBus T1
[display text omitted]
