User's Manual

User’s Manual of IGS series
251
• 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
Enables the VLAN tagging for the PTP frames.
• VID
VLAN Identifier used for tagging the VLAN packets.
• PCP
Priority Code Point value used for PTP frames.
Clock current Data Set
Object Description
• stpRm
Steps Removed : It is the number of PTP clocks traversed from the grandmaster
to the local slave clock.
• Offset from master
Time difference between the master clock and the local slave clock, measured in
ns.
• Mean Path Delay
The mean propagation time for the link between the master and the local slave
Clock Parent Data Set
Object Description
• Parent Port Identity
Clock identity for the parent clock, if the local clock is not a slave, the value is the
clocks own id.
• Port
Port Id for the parent master port
• P Stat
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 clocks 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 announced by the grand master (See description of Clock
Default Data Set: Clock Quality)
• Pri1
Clock priority 1 announced by the grand master
• Pri2
Clock priority 2 announced by the grand master