Cisco Systems uBR7200 manual Creating Spectrum Groups, Configuring and Activating Spectrum Groups

Configuring Headend Broadband Access Router Features

Configuring and Activating Frequency Agility

Creating Spectrum Groups

To create a spectrum group, use one of the following commands in global configuration mode:

Command	Purpose
CMTS01(config)# cable spectrum-group group-numbertype	Creates a blind spectrum group.
blind
or
CMTS01(config)# cable spectrum-group group-numbertype	Creates a scheduled spectrum group that can change its
	frequency and power level at the same time every day.
scheduled daily
or
CMTS01(config)# cable spectrum-group group-numbertype	Creates a scheduled spectrum group that can change its
scheduled periodic-sec seconds
	frequency and power level at a specified interval in
	seconds.

Verifying Spectrum Groups

To verify that a spectrum group has been created, enter the show cable spectrum-groupcommand:

CMTS01# show cable spectrum-group

spectrum-group 1 spectrum-group 2 spectrum-group 3

Troubleshooting Tips

To troubleshoot the configuration, make sure you have entered a valid spectrum group number and type.

Configuring and Activating Spectrum Groups

After you create a spectrum group, you need to configure a list of upstream frequencies and optional nominal power levels that each spectrum group can use when an upstream frequency change is necessary. Each spectrum group should have its own list of upstream frequencies. Valid frequencies are 5,000,000 to 42,000,000 Hz; valid power levels at a channel width of 1.6 MHz are –10 dBmV to 25 dBmV.

Cisco IOS Multiservice Applications Configuration Guide

MC-568