Specifications

4-15
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Chapter 4 Configuring the Data Interfaces
Configuring T1 and E1 Interfaces
Step 9
Specify the channel group and time slots to be mapped.
When configuring a T1 data line, channel-group numbers
can be values from 0 to 23.
Time slots are assigned to channels. One or more time
slots or ranges of time slots belong to the channel group.
The first time slot is numbered 1. For a T1 controller, the
time slot range is from 1 to 24. For T1 PRI scenarios, all
24 T1 time slots are assigned as ISDN/PRI channels.
The default line speed when configuring a T1 controller is
56 kbps.
In this example, channel-group 0 consists of five time
slots and runs at a speed of 56 kbps per time slot.
gateway(config-controller)#
channel-group 0 timeslots
1,3-5,7
Step 10
Configure each channel group as a virtual serial interface.
Specify the T1 interface (1), unit number (0), and channel
group (0) to modify and enter the interface configuration
mode.
You know you have entered interface configuration mode
when the prompt changes to
gateway(config-if)#.
gateway(config-controller)#
interface serial 1/0:0
gateway(config-if)#
Step 11
Assign an IP address and subnet mask to the interface.
gateway(config-if)# ip
address 10.1.15.1
255.255.255.0
Step 12
Exit back to global configuration mode.
If your Catalyst 4224 has more than one CT1/PRI
interface that you need to configure, repeat Steps 4
through 10.
gateway(config-if)# exit
Step 13
When you finish configuring interfaces, return to enable
mode.
gateway(config)# Ctrl-z
gateway#
Task Command