Cisco Headend System Release 2.7 Release Notes
4023675 Rev B
7
Site Requirements
Process
Length of Time
Activity
Upgrade
6-8 hours total;
2-3 of these hours
require system
outage
2-3 of these hours
require system
outage
Note: Actual time
may vary based
on the number of
devices being
upgraded.
may vary based
on the number of
devices being
upgraded.
Upgrade the DBDS network:
Back up the DNCS database
Install the DNCS and Application Server
software
software
Determine which optional features (licensed or
unlicensed) need to be enabled as a result of this
upgrade
unlicensed) need to be enabled as a result of this
upgrade
Install and download the component software
(QAM, MQAM, GENERIC QAM, and QPSK
modulator)
(QAM, MQAM, GENERIC QAM, and QPSK
modulator)
Reboot the hardware
Complete functional checks
QPSK modulator upgrades and some QAM and
MQAM upgrades can be completed with little or no
subscriber impact. However, 2-3 hours of the
upgrade require system outage.
MQAM upgrades can be completed with little or no
subscriber impact. However, 2-3 hours of the
upgrade require system outage.
Post-Upgrade
3-4 hours
Back up the system:
Back up the file system
Back up the DNCS database
These activities do not impact the system.