Telestream PRISM MPI, User Manual

Page: 221 / 304

Application Information
IP Session Application
221
PRISM MPI-MPX User Manual
PTP Tab Display
Select the PTP tab to view the status of the PTP elements in the stream. PTP is currently
only supported on 10GE SFP Port 1, for instructions on locking to PTP see Configure
Reference Settings .
Elements of the PTP Tab Display
•
Lock Status: Indicates whether the instrument PTP slave is locked to the master PTP
signal for the selected domain. These values may appear:
– No master present: Indicates that the master PTP clock has not been detected on
the selected domain.
– Locked: Indicates that the master PTP clock is detected and there is less than
1000 ns of phase lag between the master clock and the instrument.
– Unlocked: Indicates that the master PTP clock is detected and there is greater
than 1000 ns of phase lag between the master clock and the instrument.
•
PTP time: Shows the time derived from the PTP Master as UTC (Coordinated
Universal Time).
•
Master/Slave Phase Lag: Shows the detected offset between the master and slave
clocks.
•
Grandmaster ID: Shows the MAC Address of PTP Master with the bytes ff:fe inserted
in the middle. This ID is also used in the BMCA as a tiebreaker if all of the parameters
match down through priority 2.
•
Steps Removed: Shows the number of communication paths traversed between
the local clock and the Grandmaster clock.
•
Domain: Shows the domain being used. Domains allow multiple PTP services to
coexist simultaneously on one physical Ethernet connection.
•
Profile: Shows the profile being used: General, AES67, or ST2059. This is the user-
selected profile set on the Settings > Reference configuration menu page and is not
detected on the input.