Cisco 3725 Software Configuration Guide - Page 75

Configuring T1 Interfaces

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Chapter 3 Configuring with the Command-Line Interface Configuring T1 and E1 Interfaces Configuring T1 Interfaces Use the following procedure to configure a new T1, CT1/PRI or CT1/PRI-CSU interface or to change the configuration of an existing interface. Command Step 1 Router> enable Password: password Router# Step 2 Router# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Router(config)# Step 3 Router# ip routing Router# appletalk routing Router# ipx routing Step 4 Router(config)# controller t1 1/0 Step 5 Router(config-controller)# clock source line Step 6 Router(config-controller)# framing esf Step 7 Router(config-controller)# linecode b8zs Step 8 Router(config-controller)# channel-group 0 timeslots 1,3-5,7 Step 9 Router(config-controller)# interface serial 1/0:0 Step 10 Router(config-if)# ip address 10.1.15.1 255.255.255.0 Step 11 Router(config-if)# appletalk static cable-range 3-3 Router(config-if)# appletalk zone ZZEth Router(config-if)# ipx network B005 Step 12 Router(config-if)# exit Purpose Enter enable mode. Enter the password. You have entered enable mode when the prompt changes to Router#. Enter global configuration mode. You have entered global configuration mode when the prompt changes to Router(config)#. Enable routing protocols as required for your global configuration. This example uses IP routing, AppleTalk routing, and Internetwork Packet Exchange (IPX) routing. Select the CT1/PRI interface to configure. This example configures a T1 interface in slot 1 and unit 0. Specify which end of the circuit provides clocking. The clock source should be set to use internal clocking only for testing the network or if the full T1 line is used as the channel group. Only one end of the T1 line should be set to internal. Specify the framing type. Specify the line code format. Specify the channel group and time slots to be mapped. For multiflex trunk interfaces, only channel 0 can be configured. Configure each channel group as a virtual serial interface. Specify the T1 interface, unit number, and channel group to modify. Assign an IP address and subnet mask to the interface. Configure routing protocols on the interface. You must have previously enabled these protocols as part of global configuration. In this example, AppleTalk and IPX are being configured on the interface. Exit back to global configuration mode. Step 13 Router(config)# Ctrl-z Router# Return to Step 4 if your router has more than one CT1/PRI interface that you need to configure. When you finish configuring interfaces, return to enable mode. OL-1957-04 Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers 3-15

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3-15
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-04
Chapter 3
Configuring with the Command-Line Interface
Configuring T1 and E1 Interfaces
Configuring T1 Interfaces
Use the following procedure to configure a new T1, CT1/PRI or CT1/PRI-CSU interface or to change
the configuration of an existing interface.
Command
Purpose
Step 1
Router>
enable
Password:
password
Router#
Enter enable mode. Enter the password.
You have entered enable mode when the prompt
changes to
Router#
.
Step 2
Router#
configure terminal
Enter configuration commands, one per line.
End with CNTL/Z.
Router(config)#
Enter global configuration mode. You have
entered global configuration mode when the
prompt changes to
Router(config)#.
Step 3
Router#
ip routing
Router#
appletalk routing
Router#
ipx routing
Enable routing protocols as required for your
global configuration. This example uses IP
routing, AppleTalk routing, and Internetwork
Packet Exchange (IPX) routing.
Step 4
Router(config)#
controller t1 1/0
Select the CT1/PRI interface to configure. This
example configures a T1 interface in slot 1 and
unit 0.
Step 5
Router(config-controller)#
clock source
line
Specify which end of the circuit provides
clocking. The clock source should be set to use
internal clocking only for testing the network or if
the full T1 line is used as the channel group. Only
one end of the T1 line should be set to internal.
Step 6
Router(config-controller)#
framing esf
Specify the framing type.
Step 7
Router(config-controller)#
linecode b8zs
Specify the line code format.
Step 8
Router(config-controller)#
channel-group 0
timeslots 1,3-5,7
Specify the channel group and time slots to be
mapped. For multiflex trunk interfaces, only
channel 0 can be configured.
Step 9
Router(config-controller)#
interface serial
1/0:0
Configure each channel group as a virtual serial
interface. Specify the T1 interface, unit number,
and channel group to modify.
Step 10
Router(config-if)#
ip address 10.1.15.1
255.255.255.0
Assign an IP address and subnet mask to the
interface.
Step 11
Router(config-if)#
appletalk static
cable-range 3-3
Router(config-if)#
appletalk zone ZZEth
Router(config-if)#
ipx network B005
Configure routing protocols on the interface. You
must have previously enabled these protocols as
part of global configuration. In this example,
AppleTalk and IPX are being configured on the
interface.
Step 12
Router(config-if)#
exit
Exit back to global configuration mode.
Return to Step 4 if your router has more than one
CT1/PRI interface that you need to configure.
Step 13
Router(config)#
Ctrl-z
Router#
When you finish configuring interfaces, return to
enable mode.