Configuring A T3 Interface As Channelized - Cisco 10000 Series Configuration Manual

Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration
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To use the channels for subscriber traffic, you must configure the T1 and DS0 components. For more
information, see the
Figure 4-1
Figure 4-1

Configuring a T3 Interface as Channelized

All configuration of a T3 channelized interface must occur in controller configuration mode.
controller T3 slot/sub-slot/port
A T3 interface is channelized by default. Use the channelized command if you had previously made the
interface unchannelized and want to change the setting.
[no] channelized
Caution The no channelized command removes all channel groups from a channelized T3 interface. If you have
already configured channel groups, use this command with caution.
The following example shows the creation of a channelized T3 interface:
Router(config)# controller T3 1/0/0
Router(config-controller)# channelized
OL-8834-04
Setting the Framing Type, page 4-14
Entering MDL Messages, page 4-14
Specifying the Idle Pattern, page 4-15
Setting the Clock Source, page 4-16
Configuring Loopback Mode, page 4-16
Running Equipment Loopbacks, page 4-17
"Channel-Group Command for DS0 Time Slots and T1s" section on page
shows the levels of configurable interface bandwidth that channelization offers.
Channelization of T3s
A fully channelized T3
can be broken into 28 T1s...
T1
T1 T1
T1 T1
T1
T1
T1
T1
T1
T1
T1
T1
T1
T1
T1
T1 T1
T1
T1
T1
T1
T1
...each of which contains 24 56-KB
(or 64-KB) timeslots (numbered 0 to 23).
T1
T1
T1
T1
T1
A T1 is broken into channel groups
to provide subscribers with rates
ranging from full T1 (all 24 timeslots)
to a single DS0 (one timeslot).
The gray circles represent a channel
group containing timeslots 1 to 5.
Cisco 10000 Series Router Line Card Configuaration Guide
Channelized T3 Commands
4-17.
Single timeslot
Channel
group
4-13