Enabling And Disabling Spectrum Roll-Back; Configuring The Guard Band; Reviewing The Spectrum Group That You Created - Motorola BSR 2000 Configuration And Management Manual

Release 1.0

Enabling and Disabling Spectrum Roll-back

The spectrum roll-back function is disabled by default and is used to return the
upstream channel width or modulation profile setting, that was adjusted during a hop
action, to the original configuration when upstream channel conditions improve.
Use the hop action rollback command in Cable Spectrum Group mode to enable the
spectrum roll-back function:
MOT(config-spcgrp: <WORD>)#hop action rollback
where:
Use the no hop action rollback command to disable the spectrum roll-back function.

Configuring the Guard Band

Use the guard-band command in Cable Spectrum Group mode to set the minimum
spectrum separation or spacing between upstream channels in the same spectrum
group.
MOT(config-spcgrp: <WORD>)#guard-band {<0-37000000> |
<0-60000000>}
where:

Reviewing the Spectrum Group that You Created

Use the show cable spectrum-group command in Global Configuration mode to
view the spectrum group that you created:
MOT(config)#show cable spectrum-group [<WORD>]
where:
Figure 6-7
526360-001-00 Rev. B
WORD is the spectrum group name.
WORD is the spectrum group name.
0-37000000 is the guard band separation size expressed in Hertz (Hz) for
DOCSIS. The default guard band is 0 Hz.
0-60000000 is the guard band separation size expressed in Hertz (Hz) for
Euro-DOCSIS. The default guard band is 0 Hz.
WORD is the spectrum group name.
shows sample output for the show cable spectrum-group command:
MGBI
Configuring the CMTS
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