Interpreting the PTP Network Screen

The PTP Network screen contains graphical information about:

• Mean path delay

• Mean path delay standard deviation

• Offset from Leader Clock

• Maximum offset from Leader Clock

 

Mean path delay

This is the average time delay for communication between the PTP Primary Leader Clock and the device. The following color-coded error conditions apply:

• Yellow: >1.7ms or >-1.7ms
• Red: >1.9ns or >-1.9ns

 

Mean path delay standard deviation

The standard deviated for mean path delay. The following color-coded error conditions apply:

• Yellow: >1.7ms or >-1.7ms
• Red: >1.9ns or >-1.9ns

 

Offset from Leader Clock

This is equal to:

(Primary Leader Clock timestamp minus Follower Clock timestamp) minus mean path delay. The following color-coded error conditions apply:

• Yellow: >1.7ms or >-1.7ms
• Red: >1.9ms or >-1.9ms

 

Maximum offset from Leader Clock

This is the highest value for the offset from Leader Clock that is measured during the previous eight second interval. The following color-coded error conditions apply:

• Yellow: >1.7ms or >-1.7ms
• Red: >1.9ms or >-1.9ms

For an E-IPA-HX card that supports a FreeSpeak II system the following color-coded error conditions apply:

• Yellow: >500ns or >-500ns
• Red: >1000ns or >-1000ns