Cisco Systems PA-T3 manual Enter the shutdown command as follows

Shutting Down an Interface

Table 8-1	Interface Subcommand Syntax (continued)
Platform	Command	Example
Cisco 7120	interface, followed by the type	Router(config)#	interface serial 3/0
	(serial) and port adapter
	number/interface port number
Cisco 7140	interface, followed by the type	Router(config)#	interface serial 4/0
	(serial) and port adapter
	number/interface port number

Step 4 Enter the shutdown command as follows:

Router(config-if)# shutdown

Step 5 To shut down additional interfaces, enter the slot/port address (or slot/port address/interface port for a VIP2) of each additional 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) or enter end to exit configuration mode and return to the EXEC command interpreter prompt.

The example that follows is for the Cisco 7100 series, Cisco 7200 series, or

Cisco uBR7200 series routers:

Router(config-if)#interface serial 1/0

Router(config-if)# shutdown

Router(config-if)#interface serial 1/1

Router(config-if)# shutdown

Ctrl-Z

Router#

The example that follows is for a VIP2:

Router(config-if)#interface serial 1/1/0

Router(config-if)# shutdown

Router(config-if)#interface serial 1/1/1

Router(config-if)# shutdown

Ctrl-Z

Router#

The example that follows is for a Catalyst RSM/VIP2:

Router(config-if)#interface serial 1/0

Router(config-if)# shutdown

Router(config-if)#interface serial 1/1

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 Verify that new interfaces are now in the correct state (shutdown). To do so on the Cisco 7100 series, Cisco 7200 series, or Cisco uBR7200 series routers, use the show interfaces serial slot/port command to display the specific interface, or use the show interfaces command, without variables, to display the status of all interfaces in the system.

8-8PA-T3 Serial Port Adapter Installation and Configuration