Cisco Octal-Port DMT ATU-C Line Card Information Manual page 19

Octal-Port DMT ATU-C Line Card
dmt overhead-framing
To set the overhead framing mode, use the dmt overhead-framing command.To reset this command to
the default value, use the no form of this command.
Syntax Description
mode0
mode1
mode2
mode3
Defaults Mode3.
Command Modes Profile configuration.
Command History Release
12.0(5)DA
12.1(6)DA
Usage Guidelines
Conditions on the line and the capabilities of the ATU-R CPE affect the achievable value for this
Note
parameter. As a result, the overhead framing value to which the line trains may not be the same as
the value you configure.
There are two types of ADSL framing:
•
•
There are also two versions of full overhead:
•
•
You select the type of ADSL framing by choosing one of four modes:
•
•
dmt overhead-framing {mode0 | mode1 | mode2 | mode3}
Full overhead framing with asynchronous bit-to-modem timing.
Full overhead framing with synchronous bit-to-modem timing.
Reduced overhead framing with separate fast and sync bytes in the fast and
interleaved latency buffers respectively.
Reduced overhead framing with merged fast and sync bytes, using either the
fast or interleaved latency buffer.
Modification
This command was introduced.
Mode 0 was added.
Full overhead
Reduced overhead
Asynchronous
Synchronous
Mode 0—Full overhead framing with asynchronous bit-to-modem timing (an enabled
synchronization control mechanism).
Mode 1—Full overhead framing with synchronous bit-to-modem timing (a disabled synchronization
control mechanism).
dmt overhead-framing
Cisco IOS Release 12.1(6)DA
19