Version 6.6 821 October 2014
Installation & Operation Manual 46. Online Software Upgrade
46.4.2 Welcome Questionnaire
The Welcome Questionnaire screen contains basic configuration parameters that
affect the software upgrade process.
Figure
46-3: Welcome Questionnaire
In this screen, configure the following parameters:
VoP Board Upgrade Mechanism – preferred upgrade mechanism used for
upgrading the Media Gateway boards. The following options are available:
• Hitless Upgrade – Media Gateway boards are upgraded via activity
switchover between normal and redundant Media Gateway boards; all
established calls are preserved.
• Graceful Shutdown – Media Gateway boards are upgraded one-by-one; a
Graceful Shutdown mechanism is used to minimize amount of the affected
calls.
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