Cisco Headend System Release 2.7 Installation Guide

Page of 52
 
Chapter 2    Upgrading the Software 
 
 
 
30 
4023372 Rev B 
10  Perform the System Validation Tests found in the installation and upgrade 
documentation for your system release version to verify the functionality and 
performance of the set-tops in your system. 
11  Over the next few days, check the individual modulators to verify that they 
received the new code. 
 
Verifying the Functionality of MQAM Modulators That Carry xOD or VOD 
Sessions 
Sessions that exist on xOD or VOD MQAMs that were upgraded will be interrupted 
and, in most cases, will recover. If the sessions do not recover, choose one of the 
following options: 
 
Exit the xOD or VOD application (stop the xOD or VOD program), and then 
restart the application and the xOD or VOD stream by resuming the playback of 
the “in progress” purchase. 
 
Change to a different channel, and then back to the previous channel. Restart the 
application and the xOD or VOD stream by resuming the playback of the “in 
progress” purchase. 
Note: This procedure will vary depending on the application you are using. 
Important: Due to load balancing and traffic, it is difficult to determine if all 
MQAMs are functioning properly. For this reason, you should monitor these 
modulators for a few days following this upgrade to verify that Session and Program 
Counts are increasing and/or decreasing (whichever is applicable) as new xOD or 
VOD sessions are created. 
Note: After the upgrade is complete, perform the System Validation Tests found in 
the installation and upgrade documentation for your system release version to verify 
the functionality and performance of the set-tops in your system. If new or 
unexpected errors occur, contact Cisco Services.