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AssigneeAdtran Networks SE
InventorsMichael Rabinovich, Andrew Sergeev, Joo Yeon Cho, Shihuan Zou
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There is provided a technique of securing clock synchronization between master clock node (MCN) and client clock node (CCN). During a cycle of exchanging PTP messages between MCN and CCN, MCN generates an associated paired message for each PTP message generated thereby and informative of t1 or t4 timestamps provided by MCN and sends each paired message to a validation entity (VE) via a secured channel between MCN and VE. When PTP messages traverse transparent clock nodes (TCN) between MCN and CCN, each TCN generates a paired message for each version of PTP message updated thereby and sends each generated paired message to VE via a secured channel between respective TCN and VE. VE uses the received paired messages to provide a validation of the cycle, wherein synchronization-related task(s) (e.g. clock correction by the client clock node, etc.) are provided only subject to successful validation of the cycle by VE.
A method of securing a clock synchronization between a master clock node and a client clock node in a packet-compatible network, the method comprising:
A master clock node configured to operate in a packet-compatible network comprising a client clock node operatively connected to the master clock node, wherein the master clock node is further configured to:
A non-transitory computer-readable medium comprising instructions that, when executed by a master clock node comprising a memory storing a plurality of program components executable by the master clock node operable in a packet-compatible network comprising a client clock node operatively connected to the master clock node, cause the master clock node to:
Dependencies are inferred from the claim text.