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As advanced network elements begin to see deployment with IEEE 1588 (Precision Time Protocol or PTP) slave clocks, consideration must be given to how synchronization is protected during failover events.
 
Deployment of carrier-class grandmaster clocks with built-in hardware redundancy assures that all slave clocks remained locked and fully protected during clock failover events.
 
This white paper addresses the advantages and disadvantages of grandmaster hardware and network-based redundancy and provides guidelines and solutions to ensuring maximum network performance during failover events.