Patent ID: 8203969
Filing Date: 2012-06-19
Classification: H04J,H04L

Abstract:
1. A method of monitoring timing-over-packet synchronization performance in a packet switching network comprising a plurality of network nodes, the method comprising: defining, at a network management entity, a physical topology of said packet switching network; collecting, at the network management entity, a status of said physical topology; determining, at said network management entity, a physical layer synchronization topology of said packet switching network; determining, at said network management entity, a timing-over-packet synchronization topology of said packet switching network; retrieving, at said network management entity, synchronization clock source information from said plurality of network nodes; verifying clock quality of synchronization clock sources identified in said receiving step; monitoring, at said network management entity, synchronization clock performance of said synchronization clock sources; and changing the determined timing-over-packet synchronization topology when the monitored performance falls below a preset threshold.