Cisco 10000 Series Configuration Manual page 145

Chapter 5 24-Port Channelized E1/T1 Line Card Configuration
You partition the line card ports into channel groups. A port can have as many as 24 channel groups
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consisting of from 1 to 24 (DS0) timeslots. At any port:
–
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Each group of 24 framed timeslots can be grouped into multiple fractional T1 interfaces.
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A channel group cannot be part of more than one T1 interface.
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After you configure a line card for T1 mode, you can create one or more logical T1 channel groups from
the timeslots available at each port using the following controller command syntax:
[no] channel-group channel-group-number {timeslots list-of-timeslots [speed 56] | 64}
Where:
channel-group
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same significance as the options described for the E1 channel-group command above in the
"Specifying E1 Channel Groups"
speed 56 specifies the digital data rate of a single timeslot as 56 kbps.
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The following examples show how you use the channel-group command in T1 mode:
In this example, you configure channel group 20 as nine timeslots, whose bandwidth is 576 kbps (64
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kbps default speed) on port 0:
Router(config)# controller t1 1/0/0
Router(config-controller)# channel-group 20 timeslots 1-9
Router(config-controller)#
To access the interface configuration mode for this channel group, you enter:
Router(config)# interface serial 1/0/0:20
Router (config-if)#
In this example, a T1 interface includes channel group 18 and consists of all 24 timeslots, creating
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a full-rate framed T1 interface at port 0:
Router(config)# controller t1 1/0/0
Router(config-controller)# channel-group 18 timeslots 1-24
Router(config-controller)#
To access interface configuration mode for this channel group, enter:
Router(config)# interface serial 1/0/0:18
Router(config-if)#
In this example, three channelized T1 interfaces are configured as three channel groups, which use
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11 of the 24 available timeslots, at port 0:
Router(config)# controller t1 1/0/0
Router(config-controller)# channel-group 19 timeslots 1-6
Router(config-controller)# channel-group 20 timeslots 10
Router(config-controller)# channel-group 21 timeslots 7-9, 24
Router(config-controller)#
OL-8834-04
A channel group that includes 24 timeslots (1 to 24) is a single framed (channelized) T1
interface whose bandwidth is 1536 kbps.
A channel group that consists of fewer than 24 timeslots is a single framed fractional T1
interface whose bandwidth you assign from the T1 port timeslot pool (see the
T1 Controller" section on page
channel-group-number
5-10).
, timeslots list-of-timeslots, and speed 64 (default) have the
section.
Cisco 10000 Series Router Line Card Configuaration Guide
Controller Configuration Commands
"Configuring a
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