Cisco DNCS System Release 2.7 3.7 4.2 Guide De Montage
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DBDS System Time Overview
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DBDS System Time Synchronization Overview,
Continued
Network Time Protocol
The xntpd process on the DNCS synchronizes the DNCS to the configured time
source. The Network Time Protocol daemon should always be running on the DNCS
and the Application Server.
Important: The Application Server should always be running NTP, and in most
Important: The Application Server should always be running NTP, and in most
cases, uses the DNCS as a reference.
Note: See Chapter 4, DBDS System Time Maintenance, for instructions on
Note: See Chapter 4, DBDS System Time Maintenance, for instructions on
checking the Network Time Protocol daemon.
Pioneer Sites
Sites running Aptiv Digital’s Passport application need to contact Aptiv Digital
(formerly Pioneer) to ensure that the application server is synchronized with the
DNCS clock.
DVR Recordings
Maintaining accurate system time on the DNCS helps ensure that scheduled
recordings will start correctly for consumers with DVR set-tops.
Time Sources for Cisco Products and Services
The following table illustrates the time sources for optional products often used with
the DBDS.
Product or Service
Time Source
Cisco Retriever server*
DNCS
Cisco SBIE server*
DNCS
Cisco Pointer server*
DNCS
Cisco AutoBackup server*
DNCS or NTP server
Cisco Disaster Recovery monitoring
computer*
DNCS or NTP server
Basic Backup server
Basic Backup server internal hardware
clock
* When you verify your time setting on the DNCS or the NTP server, you also verify the time settings for these
products.