Cisco Headend Digital Broadband Delivery System Release Notes
Upgrade Process Overview
4003389 Rev B
11
Upgrade Tasks
CAUTION:
All active sessions on the QAM modulator will be interrupted when the
modulator is reset. DHCTs downstream of the modulator will lose their
ability to display services until sessions are reestablished.
All active sessions on the QAM modulator will be interrupted when the
modulator is reset. DHCTs downstream of the modulator will lose their
ability to display services until sessions are reestablished.
1 Upgrade QAM modulators with QAM software version 2.4 by resetting the
modulator. Resetting the modulator causes it to reboot, update the software, and
re-establish existing sessions. Follow the instructions found in Download QAM
Software to the QAM Modulators (on page 23).
re-establish existing sessions. Follow the instructions found in Download QAM
Software to the QAM Modulators (on page 23).
Note: If resetting the modulator does not cause it to reboot and load QAM
software version 2.4, turn power to the modulator off and on again. For
assistance cycling power to the modulator, refer to the QAM Modulator Model
D9476 Installation and Operation Guide.
software version 2.4, turn power to the modulator off and on again. For
assistance cycling power to the modulator, refer to the QAM Modulator Model
D9476 Installation and Operation Guide.
2 Verify that the QAM modulator is functioning properly following the upgrade.
Important! Read and follow the directives contained in Impact of TVs With
QAM Tuners (on page 9).
QAM Tuners (on page 9).
3 To upgrade another QAM modulator, repeat steps 1 and 2. Then go to step 4.
4 After the upgrade is complete, generate a Doctor Report using the –av option to
4 After the upgrade is complete, generate a Doctor Report using the –av option to
verify system stability and functionality.
Important! If new or unexpected errors appear in the Doctor Report, contact
Cisco Services.
Note: For further instructions on running the Doctor Report, refer to
Chapter 5, Analyze System Configuration With the Doctor Report, in the DBDS
Utilities Installation Instructions and DNCS Utilities User’s Guide.
Cisco Services.
Note: For further instructions on running the Doctor Report, refer to
Chapter 5, Analyze System Configuration With the Doctor Report, in the DBDS
Utilities Installation Instructions and DNCS Utilities User’s Guide.
5 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.
the functionality and performance of the set-tops in your system.
6 Check the individual modulators to verify that they received the new code.
Important! If new or unexpected errors occur, contact Cisco Services.