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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.
Clock Identity – A unique 8-octet array based on the IEEE EUI-64
■
assigned numbers.
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
◆
Clock Class – An attribute defining the clock's International Atomic
■
Time (TAI) traceability.
Clock Accuracy – An attribute defining the accuracy of the clock.
■
Offset Scaled Log Variance – An attribute defining the stability of
■
the clock
Grandmaster Priority1 – A preference level used in selecting the grand
◆
master clock.
– 603 –
| Basic Administration Protocols
C
14
HAPTER
PTP Configuration
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