Note:
Per NTP protocol definition, for an
NTP Orphan Mode Timing Network
to
operate properly, ALL servers and clients must be set to the same Stratum level
(e.g., "5").
2.15.14 Host Disciplining
Host Disciplining
allows an NTP input reference to discipline NetClock's oscillator. This may be
utilized e.g., with NetClock units that do not have a GPS receiver because they are operated
as Stratum 2 servers.
In general, it is advisable to enable Host Disciplining only if needed, and to use it only in
robust networks/NTP environments.
Note that Host Disciplining is NOT supported by NetClock units equipped with a Rubidium
oscillator.
ON
: When
Host Disciplining
is ON, the NTP reference is used to discipline NetClock's
oscillator, thus providing more stable oscillator performance.
About system software updates:
When updating to System Software Version 5.4.5,
Host Disciplining
will fall to its
default setting. When updating to future System Software versions, the last setting will be
carried over to the new software.
In any case, after a system software update it is advisable to verify that Host Disciplining
is still enabled.
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, NetClock on the other hand will not be sus
ceptible to disciplining errors caused by network traffic or NTP-related issues.
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. NetClock is running as an NTP Stratum 2 server.
To enable
Host Disciplining
:
1.
Navigate to
MANAGEMENT > NETWORK: NTP Setup
.
2.
In the
NTP Services
panel, click the GEAR icon. The
Edit NTP Services
window will dis
play:
132
CHAPTER
2
•
NetClock User Reference Guide
Rev.
16
2.15 Configuring NTP
Содержание NetClock 9400 Series
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