Technical information

Menu: Time Service
The NTP configuration page is used to set up the additional NTP parameters
needed for a more specific configuration of the NTP subsystem.
Menu: external NTP
The default configuration of the timeserver consists of a local clock, which
represents the hardware clock of your LANTIME system and the GPS reference
clock. The local clock is only chosen as the NTP time reference after the GPS clock
lost its synchronization. The stratum level of this local clock is set to 12, this ensures
that clients recognize the switchover to the local clock and are able to eventually take
further actions. The local clock can be disabled if the timeserver should not answer
anymore when the reference clock is out of order.
Seven additional external NTP servers can be set up to provide a high grade of
redundancy for the internal reference clock.
Menu: Stratum of local clock
The local clock is only chosen as the NTP time reference after the GPS clock lost
its synchronization. The stratum level of this local clock is set to 12, this ensures that
clients recognize the switchover to the local clock and are able to eventually take
further actions. The local clock can be disabled if the timeserver should not answer
anymore when the reference clock is out of order. The field “Stratum of local clock”
is used to change the stratum level of the local clock (see above), default is 12.
32
Stratum of local clock
12
Ipv4 address of external NTP server 1
000.000.000.000
Ipv4 address of external NTP server 2
000.000.000.000
.
.
.
Reference Time Network
-> Time Service <- System
-> external NTP <- Restart NTP
Local Stratum
OK