Specifications

Chapter 4 Configuring the Data Interfaces
Configuring T1 and E1 Interfaces
4-12
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Configuring T1 and E1 Interfaces
This section describes how to configure a T1/E1 multiflex trunk interface on your
Catalyst 4224. It describes a basic configuration, including how to enable the
interface and to specify IP routing. Depending on your own requirements and the
protocols you plan to route, you might also need to enter other configuration
commands.
Timesaver Before you begin, disconnect all WAN cables from the Catalyst 4224 to keep
it from running the AutoInstall process. The Catalyst 4224 attempts to run
AutoInstall if there is a WAN connection on both ends and the Catalyst 4224
does not have a valid configuration file stored in NVRAM. The Catalyst 4224
can take several minutes to determine that AutoInstall is not connected to a
remote TCP/IP host.
Configuring T1 Interfaces
To configure a new T1, Channelized T1 (CT1)/PRI, or CT1/PRI-channel status
unit (CSU) interface, or to change the configuration of an existing interface,
perform these steps:
Task Command
Step 1
Enter enable mode.
Enter the password.
You know you have entered enable mode when the prompt
changes to
gateway#.
gateway> enable
Password:
<password>
gateway#
Step 2
Enter global configuration mode.
You know you have entered global configuration mode
when the prompt changes to
gateway(config)#.
gateway# configure terminal
Enter configuration commands,
one per line. End with Ctrl-Z.
gateway(config)#
Step 3
Enable routing protocols as required for your global
configuration.
gateway(config)# ip routing
Step 4
Select frame clock.
gateway(config)# frame-clock
-select