Types of PTP devices

The DataMiner PTP app currently supports the following types of devices:

Devices	Description
Grandmaster clocks	Devices from which the time is retrieved. Typically, a PTP environment will include multiple grandmaster clocks. The DataMiner PTP app allows you to identify them and tag one or more of them as preferred grandmasters.
Boundary clocks	Devices that take the time from a grandmaster clock, recreate it, and act as a clock. Slave devices connected to a boundary clock will take their time from that boundary clock. Although they can be aware of the grandmaster clock, they will not communicate directly with it.
Transparent clocks	Devices that, unlike boundary clocks, do not act as a clock, but that simply pass the time they retrieve from either a boundary clock or a grandmaster clock. Compared to non-PTP-aware switches, transparent clocks eliminate any time-varying delays.
Slave devices	All endpoint devices that retrieve the time from a boundary clock, a transparent clock, or directly from a grandmaster clock. Note: Slave devices that have been specially assigned to monitor and analyze the PTP signal they retrieve from a clock are called PTP analyzers.