Configuring The Atm T1/E1 Interface; Step 1 Router> Enable; Password: Password; Step 2 Router# Configure Terminal - Cisco 2620 Configuration Manual

Chapter 3 Configuring with the Command-Line Interface
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

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)# interface atm 1/0
Router(config-if)#
Step 5
Router(config-if)# ima clock line
Step 6
Router(config-if)# cablelength short 133
Step 7
Router(config-if)# loopback local
OL-1957-04
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
Configuring Inverse Multiplexing for ATM Interfaces
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.
Enter interface configuration mode. You have
entered interface configuration mode when the
prompt changes to
Router(config-if)#.
Enter the transmit clock mode for the selected
ATM interface. The choices are internal, line, or
loop. The default is line.
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.
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
.
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