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| 1  | Choose Tools→Route Analysis→IGP Topology from the NFM-P main menu. The IGP topology map opens. 
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| 2  | Perform one of the following: 
Right-click on the map and choose Highlight→Synchronization→Domain→All from the contextual menu. All IEEE 1588 PTP Synchronization-enabled NEs are highlighted.
Right-click on the map and choose Highlight→Synchronization→Domain→Freerun/Initial from the contextual menu. All applicable IEEE 1588 PTP Synchronization-enabled NEs are highlighted.
Right-click on the map and choose Highlight→Synchronization→Domain→Acquiring from the contextual menu. All applicable IEEE 1588 PTP Synchronization-enabled NEs are highlighted.
Right-click on the map and choose Highlight→Synchronization→Domain→Phase Tracking from the contextual menu. All applicable IEEE 1588 PTP Synchronization-enabled NEs are highlighted.
Right-click on the map and choose Highlight→Synchronization→Domain→Hold Over from the contextual menu. All applicable IEEE 1588 PTP Synchronization-enabled NEs are highlighted.
Right-click on the map and choose Highlight→Synchronization→Domain→Locked from the contextual menu. All applicable IEEE 1588 PTP Synchronization-enabled NEs are highlighted. 
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| 3  | To remove the path highlights, refer to 
To manage active highlights on a topology map . End of steps | 
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