Cisco DNCS System Release 2.2 3.2 Installation Guide
78-4011510-01 Rev C
Preface
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Preface
About This Guide
Introduction
To maintain accurate system time and to eliminate time-related disruptions of cable
services to your subscribers, the time settings of your Digital Broadband Delivery
System (DBDS) components must be properly installed, maintained, and
synchronized. Cisco recommends that you incorporate the procedures and
instructions found in this guide into your routine DBDS maintenance schedule.
Note: For existing DBDS systems that require changes because of Daylight Saving
Note: For existing DBDS systems that require changes because of Daylight Saving
Time (DST), refer to the Daylight Saving Time Configuration Guide.
Purpose
After reading this guide, you will be able to effectively manage your system time
settings, verify your current settings, and properly synchronize your DBDS
components.
Audience
This guide is written for system administrators responsible for maintaining a newly
installed digital cable system.
To complete the procedures in this guide, you must have a basic understanding of
To complete the procedures in this guide, you must have a basic understanding of
the Cisco DBDS, the Digital Network Control System (DNCS), UNIX, and editing
files in a UNIX environment. If you do not know how to perform a specific
procedure, contact Cisco Services for assistance.
Scope
This guide provides procedures that will help reduce system time issues and issues
associated with the fall and spring time changes by providing the following
procedures and/or instructions:
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Installing the Digital System Time Kit to use the Global Positioning System (GPS)
to manage and synchronize your time settings
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Configuring a Network Time Protocol (NTP) server to manage and synchronize
your time settings
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Configuring, maintaining, and troubleshooting the DNCS and the Application
Server when using either the GPS or an NTP server to synchronize your system
time settings
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Managing your system time settings
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Synchronizing your DBDS components
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Selecting correct time zone settings for your hubs
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Resetting system processes
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Verifying pay-per-view (PPV) events