Cisco Headend System Release 2.5 Installation Guide
H-4
The auditQam Utility
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Running the auditQam Utility,
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Resetting QAMs
Use the –reset option of the auditQam utility to reset QAM, MQAM, or GQAM
modulators from the command line of the DNCS. Resetting the modulator from the
command line is usually faster than resetting the modulator through the GUI of the
DNCS. When you have dozens of modulators to reset, consider creating a script that
contains a list of the QAM IP addresses that need to be reset. An example of a script
follows.
Example Script
To avoid any impact on VOD performance, Cisco recommends that you only reset
Example Script
To avoid any impact on VOD performance, Cisco recommends that you only reset
one QAM at a time for both the DNCS E450 and V880 platforms. Therefore, your
script should resemble the following example:
auditQam -reset 123.123.123.123
auditQam -reset 123.123.123.123
sleep 1
auditQam -reset 123.123.123.124
sleep 1
auditQam -reset 123.123.123.125
sleep 1
auditQam -reset 123.123.123.126
sleep 1
Resetting a QAM interrupts all active sessions on the QAM for up to 10 minutes.
Resetting a QAM interrupts all active sessions on the QAM for up to 10 minutes.
Complete this task during a maintenance period whenever possible.
If you want to reset only a few QAMs, complete this procedure for each QAM.
If you want to reset only a few QAMs, complete this procedure for each QAM.
1.
If necessary, open an xterm window on the DNCS.
2.
Type auditQam -reset [qam ip address] and then press Enter.
Result: The system shuts down and reinitializes the QAM. During this
Result: The system shuts down and reinitializes the QAM. During this
process, the system performs an audit to ensure the session list for the QAM
matches the session list from the DNCS.