System information

BSR 64000 Configuration and Management Guide
6-72
For example, the following syntax shows that the spectrum manager’s data
collection interval rate for scanning the spectrum map occurs once every hour:
MOT(config-spcgrp:spectrum1)#collect interval 3600
• Since the spectrum collection feature uses resources on the upstream channel that
may affect throughput for CMs associated with the upstream port, the spectrum
data collection feature should be turned off when it is no longer in use to conserve
network resources.
• Use the no collect interval command to disable the collection interval.
• Use the no collect resolution command to disable the frequency resolution.
Configuring Spectrum Hopping Rules
Rules for spectrum hopping must be defined before the spectrum hopping function is
used. Spectrum hopping rules are searched before spectrum hopping occurs on an
upstream port when the spectrum group is triggered. Spectrum hopping rules are used
by the spectrum manager to find the best way to defeat noise problems on an upstream
port.
The following spectrum hopping rules apply:
• No actions are taken if spectrum hopping rules are not defined. The rules include
the preferred frequency, modulation profile, channel-width parameters, and
power adjustment.
• Multiple hopping rules with same type of action are allowed.
• Each hopping rule can be assigned with different priorities.
• Hopping rules are applied by priority and hopping rules with same priority are
applied in the order in which they are entered.
• If each individual rule fails to apply, the spectrum manager attempts to apply
different combinations of the individual rules.