Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 362 of 669
Clock Parent DataSet
table
The
Clock Parent DataSet
is defined in the IEEE 1588 standard. The parent data set is dynamic.
Parent Port Identity
Clock identity for the parent clock; if the local clock is not a slave, the value is the clocks own ID (e.g.,
00:c0:f2:ff:fe:00:00:01
).
Port
The Port ID for the parent master port.
PStat
Parents Stats (always False).
Var
The observed parent offset scaled log variance.
Change Rate
The Observed Parent Clock Phase Change Rate (i.e., the slave clocks rate offset compared to the
master). The unit is ns per sec (nanoseconds per second).
Grand Master Identity
The Clock identity for the grand master clock; if the local clock is not a slave, the value is the clock’s
own ID (e.g.,
00:c0:f2:ff:fe:00:00:01
).
Grand Master Clock Quality
The clock quality announced by the grand master, and includes 3 parts: Clock Class, Clock Accuracy
and OffsetScaledLog Variance as defined in IEEE1588 (e.g.,
Cl:251 Ac:254 Va:65535
). The Clock
Accuracy values are defined in IEEE1588 - Table 6 (the clock Accuracy is currently set to
Unknown
as the default).
Pri1
Clock priority 1 announced by the grand master.
Pri2
Clock priority 2 announced by the grand master.
