Edge-Core ECS4660-28F, Management Manual, Page: 603 / 2020

C
HAPTER
14
| Basic Administration Protocols
PTP Configuration
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Offset Scaled Log Variance – An attribute defining the stability of
the clock.
◆
Priority1 – A preference level used in selecting the master clock.
◆
Priority2 – A secondary preference level used in selecting the master
clock.
◆
Domain Number – PTP clock synchronization domain.
◆
Slave Only – Shows if this device is operating in slave-only mode.
(This operation mode is not supported by this device.)
Current Data
◆ Steps Removed – Number of steps (clock hops) from the grand master.
◆ Offset From Master – Time offset from the grand master.
◆ Mean Path Delay – Mean path delay from the grand master.
Parent Data
◆ Parent Identity – Parent identity information.
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Clock Identity – A unique 8-octet array based on the IEEE EUI-64
assigned numbers.
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Port Number – Port connected to the parent clock. (This attribute
indicates a number from the sequence of ports supporting PTP, not
a physical port number.)
◆ Observed Offset Scaled Log Variance – The variance of the parent’s
clock phase as measured by the local clock.
◆ Observed Clock Phase Change Rate – The variance of the parent’s clock
phase change rate as measured by the slave clock.
◆ Grandmaster Identity – A unique 8-octet array based on the IEEE
EUI-64 assigned numbers
◆ Grandmaster Clock Quality
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Clock Class – An attribute defining the clock’s International Atomic
Time (TAI) traceability.
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Clock Accuracy – An attribute defining the accuracy of the clock.
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Offset Scaled Log Variance – An attribute defining the stability of
the clock
◆ Grandmaster Priority1 – A preference level used in selecting the grand
master clock.