Cisco Headend Digital Broadband Delivery System Release Notes

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Chapter 2    Upgrading the Software 
 
 
 
10 
4002628 Rev B 
4  Make a backup copy of the current GoQAM configuration file. 
5  If you are upgrading more than one GoQAM, establish an order for upgrading 
the modulators. 
6  Install the GoQAM software onto the DNCS from either the Cisco FTP site or a 
CD. 
 
Upgrade Tasks 
Important! Performing the upgrade tasks will result in a temporary loss of service as 
GoQAMs are reset. 
1  Download the new software to the GoQAMs. 
2  If the GoQAMs you are upgrading currently carry broadcast sessions, determine 
the sessions that are running on those modulators you plan to upgrade. This will 
allow you to verify that these sessions are rebuilt after the new software is 
downloaded to the modulators. 
3  Verify that the upgraded GoQAM is functioning properly. 
Important! Read and follow the directives contained in Impact of TVs with 
QAM Tuners
 (on page 9). 
4  After the upgrade is complete, generate a Doctor Report using the –av option to 
verify system stability and functionality. 
5  Perform System Validation Tests for your system release version.