Cisco Headend System Release 2.7 User Guide
Chapter 9 Monitor DHCTs with the DHCT Status Reporting Utility
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4031374 Rev B
The lower, unlabeled section of the report output displays all the modulators and
demodulators running on the system. This section lists the number of non-
responding DHCTs assigned to each modulator or demodulator, the total number of
DHCTs supported by the modulator or demodulator, as well as the percentage of
assigned DHCTs that are non-responders. The report highlights the percentage of
non-responding DHCTs whenever that percentage exceeds 20 percent.
demodulators running on the system. This section lists the number of non-
responding DHCTs assigned to each modulator or demodulator, the total number of
DHCTs supported by the modulator or demodulator, as well as the percentage of
assigned DHCTs that are non-responders. The report highlights the percentage of
non-responding DHCTs whenever that percentage exceeds 20 percent.
Note: System operators may want to examine the following conditions in order to
troubleshoot the significant percentage of non-responding DHCTs revealed in the
data from step 5:
troubleshoot the significant percentage of non-responding DHCTs revealed in the
data from step 5:
The system may lack proper attenuation
The modulator may just have rebooted
The cabling for the modulator or demodulator may have become loose
The system may have just experienced a power outage
Data Files Resulting From Polling Operations
The following list contains the data files that are generated by the polling operation,
as well as a description of the type of data contained in the file:
as well as a description of the type of data contained in the file:
Note: Type page [file name] and then press Enter from the
/dvs/dncs/tmp/dhctStatus2/[DATE]/ALL/GR_REPORTS directory to view the
output.
/dvs/dncs/tmp/dhctStatus2/[DATE]/ALL/GR_REPORTS directory to view the
output.
OS_TypeRev.txt — OS version sorted by DHCT type and revision
NR_TypeRev.txt — Non-responder data sorted by DHCT type and revision
NR_ModDeMod.txt — Non-responder data sorted by QPSK modulator and
demodulator
demodulator
DL_ModDeMod.txt — DHCT delay values sorted by QPSK modulator and
demodulator
demodulator
TL_ModDeMod.txt — DHCT transmit levels sorted by QPSK modulator and
demodulator
demodulator