Setting The Framing Type - Cisco 10000 Series Configuration Manual

Unchannelized T3 Commands
In the following example, a bandwidth of 16000 kbps is specified:
Router(config)# interface serial 1/0/0
Router(config-if)# dsu bandwidth 16000

Setting the Framing Type

To specify a framing type for the unchannelized T3 controller, use the framing command.
[no] framing
The default framing type is C-bit.
Use the no form of this command to restore the default framing type.
In the following example, framing is set to m13:
Router(config)# interface serial 1/0/0
Router(config-if)# framing m13
Enabling Scrambling
To enable scrambling on an unchannelized T3 interface, use the scramble command from interface
configuration mode.
[no] scramble
The default setting for this command is no scramble (scrambling disabled).
Both sides of the link should have the same scrambling setting.
In the following example, scrambling is enabled on the specified T3 interface:
Router(config)# interface serial 1/0/0
Router(config-if)# scramble
Specifying an Idle Character
To set a specific character on the unchannelized T3 interface to be transmitted between HDLC packets,
use the idle character command from interface configuration mode.
[no] idle-character
Where:
•
•
The default idle character is 0x7e.
Because flags is the default, the output of the show running-config command does not display the flags
Note
idle character setting.
Use the no form of the command to return the idle character to its default.
Cisco 10000 Series Router Line Card Configuaration Guide
4-8
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c-bit m13
[
flags
flags sets an idle character of 0x7e.
marks sets an idle character of all 0xff.
Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration
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marks
OL-8834-04