Troubleshooting guide

Troubleshooting the CMTS
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If a new upstream modulation profile needs to be created, refer to the
Configuring and Managing the BSR 64000 and Configuring and Managing
the BSR 1000 documents for more information.
6. If there is no problem with the selected modulation profile, determine the
signal quality on the upstream port. To determine the upstream signal quality
use the show interfaces cable signal-quality command in Interface
Configuration mode, as shown in the following example:
RDN(config-if)#show interfaces cable <slot>/<interface>
signal-quality
where:
slot is the slot number of the DOCSIS module on the BSR 64000
interface is the cable interface number
Signal quality statistics for all the upstream interfaces (ports) displays.
Note: The show interfaces cable signal-quality command is currently
not available on BSR 1000.