Enable NTP Server
► If this box is not checked, the server will not respond to any NTP requests.
Reference ID
► This field shows the current “Reference Identifier” used in NTP messages. This field is
automatically computed depending on the LEDI
®
NETWORK TDS synchronisation
status. It can be “DCF” (DCF or GPS synchronisation) XNOT if the product is not
synchronised, or correspond to the IP address of an NTP server (NTP synchronisation).
Override Reference Identifier et New Reference ID
► If the “Override Reference Identifier” box is checked and the product is synchronised by
its frequency input, the reference ID used in NTP messages is replaced with “New
Reference ID”.
Current stratum
► The value of the stratum stored in the NTP messages sent to NTP clients.
Authentication policy
► Use this field to choose whether the server will respond to an NTP request, based on
the presence of an MD5 hash value. You can choose to accept any request, or only
those that are secure, or only those that or not secure.
Serve symmetric active/passive requests
► Checking this box enables the NTP symmetric active/passive requests mode.
If synchronization lost
► Defines the effect on some NTP fields when the device is not synchronised.
► Stratum Level
The stratum level sent can be modified.
Values can be set from 1 to 16 or select the option “Do not modify Stratum” to not
change the STRATUM field when synchronisation is lost.
► Leap Indicator
The stratum level sent can be modified.
Available values are “3 (0b11)” or “do not modify Leap indicator” to avoid modifying
the LI field when synchronisation is lost
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