PTP is a powerful network protocol for synchronizing the clock times of devices networked via Ethernet. The most accurate clock within a PTP network is designated as the master. It transmits the time signal from communicating clocks to its slaves to determine the delay and adjust clocks locally. PTP also has synchronization accuracy in the sub-microsecond range and requires almost no administrative overhead with only minimal system requirements. The network protocol is described in IEEE 1588:2008 as an international standard.