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ADC Telecommunications, Inc.
396 C
HAPTER 18: CONFIGURING CABLE MODEM TERMINATION SYSTEMS
Modulation Profile
The Profile Index number that identifies the properties of the Upstream
Channel ID.
You assign a modulation profile to an upstream channel by performing the
following tasks.
Data-Backoff
The data-backoff parameter sets a fixed start value for initial data backoff on
the upstream channels. By default, the TX data backoff Start parameter is set
to 5. Acceptable values are 0 to 15.
You set the data backoff range on the upstream channel by performing the
following task.
Task Command
1. Enter interface cable mode. interface cable <c/s/i>
2. Specify the modulation profile
that you want the channel to
utilize.
upstream <port number>
modulation-profile <profile
number>
Task Command
1. Enter interface cable mode. interface cable <c/s/i>
2. Configure the transmit backoff
range.
upstream <port number>
data-backoff <start> <end>