Cisco Headend System Release 2.5 Installation Guide

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Understand the Data in the Doctor Report Fields 
4020695 Rev C 
43 
 
Distinguished SI QAM 
The data in the Distinguished SI QAM field identifies the QAM modulator that is 
used by DHCTs for SI retrieval, as well as the IP address of that QAM modulator. 
Notes: 
 
In SR 2.2 and later systems, a candidate for the Distinguished QAM is any QAM 
that is not associated with a hub. 
 
If the qamManager logs are not available, the QAM frequency, the QAM IP 
address, and the QAM name display as UNKNOWN. 
 
QAMs Not Associated With Either a Hub or Service Group 
The data in the QAMs Not Associated with either a Hub or Service Group field lists 
those QAM modulators that are not associated with a hub or a service group. Unless 
a QAM is configured to deliver SI, it should be associated with a hub. 
 
Duplicate QAM Frequencies Within Service Groups 
The data in the Duplicate QAM Frequencies within service groups field lists any 
QAM modulator configured with a frequency used by another QAM modulator in 
the same service group. 
 
Primary Netcrypt 
The Primary Netcrypt field provides data concerning the Netcrypt Bulk Encryptor. 
Data displayed includes: 
 
Netcrypt system time 
 
Software versions 
 
Status, including component, process, and processor status 
 
Hostnames 
 
IP addresses