PTP (IEEE1588)
HMG-838PT & HMG-838EPT Web Configuration 21-3
6 (Currently the clock Accuracy is set to 'Unknown' as default).
Pri1: Configure Clock priority 1 used by the BMC master select algorithm. The valid value is from 0 to 255.
Pri2: Configure Clock priority 2 used by the BMC master select algorithm. The valid value is from 0 to 255.
Protocol: This shows transport protocol used by the PTP protocol engine.
One-Way: If true, one way measurements are used. This parameter applies only to a slave. In one-way mode no
delay measurements are performed, i.e. this is applicable only if frequency synchronization is needed. The master
always responds to delay requests.
VLAN Tag Enable: This shows whether VLAN tagging for the PTP frames is enabled (True) or not (False).
VID: This shows VLAN Identifier used for tagging the VLAN packets.
PCP: This shows Priority Code Point value used for PTP frames.
Clock current Data Set: The clock current data set is defined in the IEEE 1588 Standard. The current data set is
dynamic
stpRm: This stands for “Steps Removed” and is the number of PTP clocks traversed from the grandmaster to the
local slave clock.
Offset from master: This shows time difference between the master clock and the local slave clock, measured in
ns.
Mean Path Delay: this show the mean propagation time for the link between the master and the local slave.
Filter Parameters
DelayFilter, Period, Dist: The default delay filter is a low pass filter, with a time constant of
2**DelayFilter*DelayRequestRate. The default offset filter uses a minimum delay filter method i.e. The minimum
measured offset during Period samples is used in the calculation. The distance between two calculations is Dist
periods.
Clock Parent Data Set: The clock parent data set is defined in the IEEE 1588 standard. The parent data set is
dynamic.
Parent Port Identity: This shows Clock identity for the parent clock, if the local clock is not a slave, the value is
the clocks own id.
Port: This shows port ID for the parent master port.
PStat: Parents Stats (always false).
Var: It is observed parent offset scaled log variance.
Change Rate:
Observed Parent Clock Phase Change Rate. i.e. the slave clo
cks rate offset compared to the
master. (unit = ns per s).
Grand Master Identity: Clock identity for the grand master clock, if the local clock is not a slave, the value is the
clocks own id.
Grand Master Clock Quality: The clock quality (Clock Class, Clock Accuracy and OffsetScaledLog Variance)
announced by the grand master.
Pri1: Clock priority 1 announced by the grand master.
Pri2: Clock priority 2 announced by the grand master.
Clock Time Properties Data Set: The clock time properties data set is defined in the IEEE 1588 Standard. The data
set is both configurable and dynamic, i.e. the parameters can be configured for a grandmaster. In a slave clock the
parameters are overwritten by the grandmasters timing properties. The parameters are not used in the current PTP
implementation.
To Next Page
Loading...
Need help?
General
