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NTP Servers and Peers

SecureSync can be configured to receive time from one or more available NTP Servers (SecureSyncs or different models). This allows for NTP Servers on a timing network to be configured as potential (fallback) input time references for SecureSync System Time synchronization. In the event that a current reference becomes unavailable, SecureSync can fallback to the other NTP Servers available on the network.

A group of NTP servers at the same Stratum level (Stratum 1 time servers, for example) are considered as NTP Peers to each other.

NTP Servers at a higher Stratum level, on the other hand, are called NTP Servers (Note that Internet Time Servers should be configured as NTP Servers and not as NTP Peers).

Note: IMPORTANT: In order for other NTP servers to be a valid reference, you must enable “NTP” in the Reference Priority table (see Configuring Input Reference Priorities).

For mutual fallback purposes, it is recommended to use one or more NTP Peers. Each peer is normally configured to operate from one or more time sources including reference clocks or other higher stratum servers. If a peer loses all reference clocks or fails, the other peers continue to provide time to other clients on the network.