Enabling Host Disciplining; Ntp Expert Mode - Spectracom SecureSync 1200 User Reference Manual

2.15.14.1 Enabling Host Disciplining

In order for Host Disciplining to work, you must have enabled NTP, and you must have con
figured an NTP Peer or Server, i.e. SecureSync is running as an NTP Stratum 2 server.
To enable Host Disciplining :
1.
2.
3.
4.

2.15.15 NTP Expert Mode

Advanced NTP configuration is possible via the
ectly into the
CHAPTER •
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OFF [ default setting]: When OFF, NTP synchronization is not disciplining the oscillator,
only a time transfer is made in regular intervals to manually correct the system time.
While disabled Host Disciplining does not offer the benefit of a disciplined oscillator
when transitioning into or out of holdover, SecureSync on the other hand will not be sus
ceptible to disciplining errors caused by network traffic or NTP-related issues.
Navigate to MANAGEMENT > NETWORK: NTP Setup .
In the NTP Services panel, click the GEAR icon. The Edit NTP Services window will dis
play:
Under the Stratum 1 tab:
enable Stratum 1 Operation (this allows System holdover if GPS and the NTP serv
ers happen to become unavailable for a period of time)
disable Prefer Stratum 1
disable Stratum 1 1PPS , and click Submit.
(The NTP Status Summary panel in the NTP Setup screen should now display Stratum 2 .
For additional information, see "Configuring "NTP Stratum Synchronization"" on
page 98.)
Under the Host Ref tab, enable Host Disciplining , and click Submit. You do NOT have
to stop and re-start the NTP Service; SecureSync will do this for you.
file (the syntax is similar to the one used with CISCO routers).
NTP.conf
2.15 Configuring NTP
, which allows you to write dir
NTP Expert Mode
127