Shutting Down An Interface - Cisco PA-2CT1 Installation And Configuration Manual

Cisco 7200 Series and the 2CT1 Port Adapter
Figure 21
2CT1 port adapter
(port numbers 1/0 and 1/1
from left to right)
You can identify interface ports by physically checking the port adapter slot/interface port location
on the front of the router or by using software commands to display information about a specific
interface or all interfaces in the router.

Shutting Down an Interface

Before you replace an interface cable, replace port adapters, or remove an interface that you will not
replace, use the shutdown command to shut down (disable) the interfaces. Doing so prevents
anomalies from occurring when you reinstall the new or reconfigured port adapters. You can shut
down all 24 interfaces of a controller by specifying the controller before issuing the shutdown
command. You can shut down individual interfaces of a controller by specifying the channel group
or PRI group assigned to each controller (channel groups and PRI groups are treated as serial
interfaces by the system). 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
Step 2
Step 3
Step 4
40 Channelized T1 Port Adapter Installation and Configuration
2CT1 Interface Port Number Example
Cisco 7200
Series
Enter the privileged level of the EXEC command interpreter. (See the "Using the EXEC
Command Interpreter" section on page 37 for instructions.)
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)#
Specify the slot/port address of the controller that you want shut down by entering the
command controller, followed by the type (t1) and port adapter slot number/interface
port number. The example that follows is for a 2CT1 in chassis slot 1:
Router(config)# controller t1 1/0
Enter the shutdown command as follows:
Router(config-cont)# shutdown
TOKEN RING
ETHERNET-10BFL
FAST ETHERNET INPUT/OUTPUT CONTROLLER