Cisco Headend System Release 2.7 Installation Guide

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4013154 Rev C 
 
Introduction 
This chapter lists major improvements and beneficial operational 
changes for the DNCS as a result of installing an updated service pack 
to the existing system release. In addition, this chapter provides 
important system information about this service pack. 
Upgrade Path 
Sites that want to upgrade to this service pack must support System 
Release 4.0. This guide provides instructions for upgrading to SR 4.0 
SP2.  
Daylight Savings Time Patch 
The SR 4.0 SP2 software contains a Daylight Savings Time (DST) patch 
that loads onto the DNCS and the Application Server. This patch 
allows the system to be configured to accommodate new rules that 
extend DST by 4 weeks beginning with the spring 2007 time change. 
Time to Complete the Upgrade 
The upgrade to SR 4.0 SP2 must be completed within a maintenance 
window. Cisco engineers have determined that a typical site can be 
upgraded in approximately 6 hours. 
 
Chapter 1 
Introducing System Release 
4.0 Service Pack 2 
In This Chapter 
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