Cisco Headend System Release 2.7 Release Notes

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Chapter 1    Why Choose System Release 2.8? 
 
 
 
4019364 Rev B 
With GQAM software version 4.2 or later, GQAM modulators with dual GbE ports 
support the VOD Redundancy feature.  This feature allows system operators to carry 
VOD and Broadcast services on the same GQAM, thereby leveraging the 
redundancy capability of the GQAM modulator's dual GbE ports. 
 
Generic QAM Support 
This system release adds support to manage provisioning of generic QAMs through 
the published interface made available to the QAM vendors. 
A Generic QAM button and a Generic QAM Models button have been added to the 
Network Element Provisioning tab. These buttons allow you to add traditional table-
based QAM modulators to the DNCS.  (The DNCS refers to these modulators as 
generic QAM modulators.)  Adding a generic QAM modulator to the DNCS allows 
you to set up sessions on the modulator and manage the sessions. 
However, unlike session-based modulators, generic QAM modulators do not 
support DNCS-supplied provisioning. As a result, specifications saved to the DNCS 
when the modulator is added (or provisioned) in the DNCS are not provided to the 
modulator when the modulator reboots. Instead, the modulator must be provisioned 
separately. For assistance provisioning generic QAM modulators, consult the 
documentation provided by the manufacturer of the modulator. 
Note: You must contact your account manager to enable the feature.  Then, you must 
stop and restart your DNCS processes. 
The following illustrations provide examples of the new Generic QAM and Generic 
GAM Models buttons. 
Quick Path: DNCS Administrative Console > DNCS tab > Network Element 
Provisioning tab