Setting The Framing Type - Cisco 10000 Series Configuration Manual

Chapter 8 6-Port Channelized T3 Line Card Configuration
To return to the default bandwidth, use the no form of this command.
When you specify a value, the software sets the bandwidth to the closest acceptable bandwidth, based
on the timeslot size for the current DSU mode.
In order for you to use this command, the remote side of the connection must have a Cisco 7200 or Cisco
7500 with a PA-T3 or PA-2T3 port adapter or a T3 DSU supported by the dsu mode command.
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.
framing
[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
Specifying the DSU Mode
To specify a DSU mode for a selected T3 interface, use the dsu mode command from interface
configuration mode. This command configures the line card to emulate a manufacturer's proprietary
multiplexing scheme.
dsu mode
verilink-lowbit
[no] dsu mode
The default DSU mode is cisco.
Use the no form of the command to return the DSU mode to its default.
In the following example, the DSU mode is set to cisco:
Router(config)# interface serial 1/0/0
Router(config-if)# dsu mode cisco
Enabling Scrambling
To enable scrambling on an unchannelized T3 interface, use the scramble command from interface
configuration mode.
scramble
[no] scramble
The default setting for this command is no scramble (scrambling disabled).
Both sides of the link should have the same scrambling setting.
OL-8834-04
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c-bit m13
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c-bit m13
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Adtran cisco Digital-link
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Kentrox Larscom verilink-highbit
Cisco 10000 Series Router Line Card Configuaration Guide
Unchannelized T3 Commands
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