System information

Configuring the CMTS
6-83
Viewing Your Spectrum Group Configuration
The show running config command does not show the configured parameters if the
spectrum manager makes changes the upstream frequency, channel width, modulation
or power level by hopping action. However, you can use the show running-config
command in Privileged EXEC mode to view the configuration of a spectrum group
that you created, as shown below:
MOT#show running-config
For example, the following show running-config command output shows the
configured spectrum group information:
cable spectrum-group spectrum1
time 16:00:00 band 25000000 35000000
time 20:00:00 delete band 25000000 35000000
time Thus 10:00:00 band 21000000 29000000
time Thus 11:00:00 delete band 21000000 29000000
band 17000000 22000000
band 26000000 30000000
collect interval 3600
hop action frequency 28000000 priority 30
hop action modulation-profile 2 priority 50
hop action channel-width 1600000 priority 100
hop action band 20000000 30000000 priority 110
hop action roll-back
Applying a Spectrum Group to an Upstream Port
When a spectrum group is applied to an upstream port, the upstream port belongs to
the spectrum group.
Note: The spectrum manager is unaware of the physical topology of your
cable plant, and it is only aware of the spectrum group. Ensure that you apply
the same spectrum group to all upstream ports that share the same upstream
frequency assignment on the same physical cable plant. Also ensure that the
frequency configurations of different spectrum groups do not overlap if they
share the same physical plant.