Cisco 3725 Software Configuration Guide - Page 83

Configuring the ATM T1/E1 Interface

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Chapter 3 Configuring with the Command-Line Interface Configuring Inverse Multiplexing for ATM Interfaces Note On the 8-port E1 or T1 network module, only four ATM layer interfaces can be operational at the same time. All the interfaces can be activated (configured as "no shutdown") but only four at a time can be operational and pass network traffic. Configuring the ATM T1/E1 Interface To configure the ATM interface, follow this procedure: Command Purpose Step 1 Router> enable Enter enable mode. Enter the password. Password: password Router# You have entered enable mode when the prompt changes to Router#. Step 2 Router# configure terminal Enter global configuration mode. You have Enter configuration commands, one per line. entered global configuration mode when the End with CNTL/Z. prompt changes to Router(config)#. 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)# interface atm 1/0 Router(config-if)# Enter interface configuration mode. You have entered interface configuration mode when the prompt changes to Router(config-if)#. Step 5 Router(config-if)# ima clock line Enter the transmit clock mode for the selected ATM interface. The choices are internal, line, or loop. The default is line. Step 6 Router(config-if)# cablelength short 133 For T1 interfaces only, specify the cable length (short or long) followed by the length in feet. You can view the acceptable cable lengths by including the ? option after the long or short commands. Step 7 Router(config-if)# loopback local Specify the loopback type for this ATM interface by entering the loopback command followed by one of the following: line, local, payload, remote. You can view command descriptions by including the ? option after the loopback command. OL-1957-04 Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers 3-23

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3-23
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 Inverse Multiplexing for ATM Interfaces
Note
On the 8-port E1 or T1 network module, only four ATM layer interfaces can be operational at the same
time. All the interfaces can be activated (configured as “no shutdown”) but only four at a time can be
operational and pass network traffic.
Configuring the ATM T1/E1 Interface
To configure the ATM interface, follow this procedure:
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)#
interface atm 1/0
Router(config-if)#
Enter interface configuration mode. You have
entered interface configuration mode when the
prompt changes to
Router(config-if)#.
Step 5
Router(config-if)#
ima clock line
Enter the transmit clock mode for the selected
ATM interface. The choices are
internal
,
line
, or
loop
. The default is
line
.
Step 6
Router(config-if)#
cablelength short 133
For T1 interfaces only, specify the cable length
(
short
or
long
) followed by the length in feet.
You can view the acceptable cable lengths by
including the
?
option after the
long
or
short
commands.
Step 7
Router(config-if)#
loopback local
Specify the loopback type for this ATM interface
by entering the
loopback
command followed by
one of the following:
line
,
local
,
payload
,
remote
.
You can view command descriptions by including
the
?
option after the
loopback
command
.