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Chapter 5
Configuring Channelized mode for the Cisco PA-MC-2T3+
The example that follows is for a port adapter in slot 1 of the Cisco 7200 series routers:
Each T1 link may have up to 24 channel groups with an overall limit of 128 for the 28 T1 links on each
Note
T3 port. Unused channel groups in one T3 port may not be used by the other T3 port.
Each channel group defined with this command causes a serial interface to be created. Refer to the
Note
"Performing a Basic Serial Interface Configuration" section on page 5-24
these interfaces.
All the encapsulation formats, such as PPP, HDLC, SMDS, Frame Relay, and switching types are
Note
applicable to the serial interface and can be set using the serial interface configuration commands.
Removing a Logical Channel Group from a T1 Line
You can remove a logical channel group from a T1 line with the following controller command:
no t1 t1-line-number channel-group channel-group-number
where:
•
•
Remove logical channel group 10 from channelized T1 line 1.
The example that follows is for a port adapter on a VIP in interface processor slot 1:
The example that follows is for a port adapter in slot 1 of the Cisco 7200 series routers:
Note
If logical channel groups had previously been configured on a port, and you switch to 'no channelized'
mode, first remove all channel groups before invoking the 'no channelized' command.
Setting the Framing Format on a T1 Line
You can specify the T1 framing format using the controller command:
t1 t1-line-number framing {esf | sf}
where:
•
•
Examples follow:
•
OL-3526-05
Router(config)# controller T3 1/0
Router(config-controller)# t1 1 channel-group 20 timeslots 1-5, 20-23
t1-line-number is 1–28.
channel-group-number is 0–23.
Router(config)# controller T3 1/0/0
Router(config-controller)# no t1 1 channel-group 10
Router(config)# controller T3 1/0
Router(config-controller)# no t1 1 channel-group 10
The default framing format is extended super frame (ESF).
t1-line-number is 1–28.
Set Super Frame (SF) framing format for T1 line 6.
PA-MC-2T3+ Multi-Channel T3 Port Adapter Installation and Configuration
Configuring a Channelized T3 Link
for instructions on configuring
5-11
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