Russian Federation
Russian Federation
Russian Federation
Purpose: to develop a simulation model of clock synchronization in accordance with the Precision Time Protocol (PTP) functioning in «End-to-End» (E2E) mode. To investigate the influence of probabilistictemporal parameters of network devices operation on synchronization accuracy. Methods: an analysis of foreign and Russian authors’ works and technical documentation, simulation modeling using an agentbased approach. Results: a simulation model of local time scale synchronization via PTP with transparent clock is developed. An estimation of synchronization accuracy are obtained depending on the influencing subprocesses. Theoretical significance: the developed model makes it possible to obtain the estimation of the achieved synchronization accuracy when PTP is operating in E2E mode depending on the characteristics of the devices that are used, as well as on the characteristics of the communication channels. Practical significance: the obtained results can be used for designing relatively small packet networks with PTP support that is relevant in the context of implementing industrial automation tools at enterprises. The developed models can also be used for analyzing the operability of local area networks functioning to find the most significant subprocesses that affect the provisioned to users quality of service. The model can be further scaled for implementing in networks with more complicated topology and become a basis for complex of synchronization models of PTP working in different modes.
Network synchronization, PTP, precision time protocol, E2E, frequency-time provision, time scale
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