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Step 6
Specify a channel group and map timeslots to the channel group by entering the channel-group
command. The following example specifies channel group 0 and maps timeslots 1, 3 through 5, and 7 to
channel group 0:
Router(config-controller)# channel-group 0 timeslots 1,3-5,7
Router(config-controller)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:0,
changed state to down
%LINK-3-UPDOWN: Interface Serial3/1/1:0, changed state to up
Note
Each channel group is presented to the system as a serial interface that can be configured
individually.
If IP routing is enabled on the system, assign an IP address and subnet mask to the channel group with
Step 7
the interface and ip address commands as follows:
Router(config-controller)# interface serial 3/1/1:0
Router(config-if)# ip address 10.1.15.1 255.255.255.0
Router(config-if)#
Step 8
Add any additional configuration commands required to enable routing protocols and adjust the interface
characteristics.
Step 9
Use the no shutdown and exit commands respectively to reenable the interface and return to
configuration mode as follows:
Router(config-if)# no shutdown
Router(config-if)# exit
Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:0,
changed state to up
%LINK-3-UPDOWN: Interface Serial3/1/1:0, changed state to up
Step 10
Repeat Step 6 through Step 9 for additional channel groups and timeslots.
Step 11
After configuring additional channel groups and timeslots, map all unused timeslots to an unused
channel group and shut down the unused channel group by entering the channel-group and shutdown
commands, respectively.
In the following example, unused timeslots 2, 6, and 8 through 31 are mapped to unused channel group 1,
and channel group 1 is shut down:
Router(config)# controller e1 3/1/1
Router(config-controller)# channel-group 1 timeslots 2,6,8-31
Router(config-controller)#
Router(config-controller)# int serial 3/1/1:1
Router(config-if)# shutdown
Router(config-if)# exit
Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/1/1:1,
changed state to down
%LINEPROTO-5-UPDOWN: Interface Serial3/1/1:1, changed state to
administratively down
After including all of the configuration commands, to complete the configuration, press Ctrl-Z—(hold
Step 12
down the Control key while you press Z—) or enter end to exit configuration mode and return to the
EXEC command interpreter prompt as follows:
Router(config)#
Ctrl-Z
Router#
OL-3519-01
PA-2CE1 Channelized E1 Port Adapter Installation and Configuration
Configuring the PA-2CE1 Interfaces
4-7
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