Cisco Headend System Release 2.7 Installation Guide
Chapter 2 Upgrading the Software
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4 Make a backup copy of the current MQAM configuration file.
5 If you are upgrading more than one MQAM, establish an order for upgrading
5 If you are upgrading more than one MQAM, establish an order for upgrading
the modulators.
6 Install the MQAM software onto the DNCS from either our FTP site or a CD.
Upgrade Tasks
Important: Performing the upgrade tasks will result in a temporary loss of service as
Important: Performing the upgrade tasks will result in a temporary loss of service as
MQAMs are reset.
1 Download the new software to the MQAMs.
2 If the MQAMs you are upgrading currently carry broadcast sessions, determine
1 Download the new software to the MQAMs.
2 If the MQAMs 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 MQAM is functioning properly.
Important: Read and follow the directives contained in
Impact of TVs with
QAM Tuners (on page 11).
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.