Octal-Port DMT ATU-C Line Card
dmt rate-adaptation enable
21
Cisco IOS Release 12.1(6)DA
dmt rate-adaptation enable
DMT rate adaptation monitors upstream and downstream DMT ports for signal-to-noise ratio (SNR)
margins during specified time intervals. If an unacceptable SNR margin is detected, the port is retrained
at a lower bit rate to improve the SNR margins. To enable rate adaptation on a DMT port, use the
dmt rate-adaptation enable command at the DSL profile configuration prompt. To disable dmt rate
adaptation, use the no form of the command.
dmt rate-adaptation enable
This command has no arguments or keywords.
Defaults
Enabling dmt rate-adaptation configures the commands dmt rate-adaptation interval and
dmt rate-adaptation margin with their default values. For information on the default values of
dmt rate-adaptation interval and dmt rate-adaptation margin see the
“dmt rate-adaptation interval”
section on page 22
and the
“dmt rate-adaptation margin” section on page 24
.
Command Modes
DSL profile configuration
Command History
Usage Guidelines
If you wish to modify the default configuration of the dmt rate-adaptation interval and
dmt rate-adaptation margin see the
“dmt rate-adaptation interval” section on page 22
and the
“dmt
rate-adaptation margin” section on page 24
.
Examples
The following example enables dmt rate-adaptation with default interval and margin values:
config terminal
dsl-profile austin
dmt rate-adaptation enable
Related Commands
Release
Modification
IOS 12.1(6)DA
This command was introduced.
Command
Description
dmt rate-adaptation interval
Sets the upstream and downstream time intervals at which a DMT
port is monitored for SNR margins.
dmt rate-adaptation margin
Sets the SNR values below which the DMT port retrains to a lower
bit rate.
