4-3
Clear Channel 6-Port T3 (DS3) Line Card Installation and Configuration
OL-3449-02
Chapter4 Configuring the 6T3 Line Card Configuring the Interfaces
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 serial command (followed by
the interface address of the interface) for each of the interfaces on your line card. 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 interface address of the interface) to
display the specific interface. Table 4 -2 provides examples.
Table4-1 Syntax of the shutdown Command
Platform Command Example
Cisco 7304 routers interface, followed by the type
(serial) and slot/port (slot-number/
interface-port-number)
The example is for interface 0 and interface 1 on a
6T3 line card in slot 2.
Router(config-if)# interface serial 2/0
Router(config-if)# shutdown
Router(config-if)# interface serial 2/1
Router(config-if)# shutdown
Ctrl-Z
Router#
Table4-2 Examples of the show interfaces serial Command
Platform Command Example
Cisco 7304 router s how interfaces serial, followed
by slot/port (slot-number/
interface-port-number)
The example is for interface 0 on a
6T3 line card in slot 2.
Router# show interfaces serial 2/0
Serial 2/0 is administratively down,
line protocol is down
[Additional display text omitted from
this example]