Gesicherte Taktsynchronisation in einem Paketkompatiblen Netzwerk

Details

Veröffentlichungs-Nr.

EP4184814

Aktenzeichen

EP21210032

Anmeldetag

23. November 2021

Veröffentlichung

19. Juni 2024

Erteilung

19. Juni 2024

Rechtsraum

EP

IPC

H04J3/06H04J3/14

Abstract

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.

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Firmen

Adtran Networks SE
ADVA Optical Networking SE

Land

🇩🇪 Deutschland

Fachgebiete