IEEE-1588. Changes on this page is live updated. Some con
fi
guration changes (but not
all) will result in a synchronization re-lock.
The state of clock regulation can be monitored on the IEEE-1588 page.
•
Enable
◦
Check to enable IEEE-1588 synchronisation
◦
Type: On / O
ff
•
Sync Master Hostname
◦
Enter IP of the PTPv2 timing master. The timing master must be reached
through one of the SFP+ interfaces.
◦
Type: String
•
PTP domain
◦
Enter PTP domain number, also known as subdomain. Default: 0.
◦
Type: Integer range [0-255]
•
Unicast negotiation
◦
Check to enable unicast negotiation. Must be enabled for PTP over unicast
◦
Type: On / O
ff
•
Request SYNC per sec.
◦
Number of SYNC messages per second to request in unicast negotiation.
Supported values: 1, 2, 4, 8, 16, 32. Default 8.
◦
Type: Integer
◦
Unit: per sec
•
Multiple messages
fi
lter
◦
Method for processing multiple SYNC messages received since last servo
update. Default: minimum. For example, with minimum, the servo update
calculation will use the SYNC message with the minimum time di
ff
erence of
the available SYNC messages
◦
Options: minimum, average, maximum, latest
•
Servo P gain
◦
The servo proportional gain. Default: 40. A value of 1.0 will translate 1 usec
time di
ff
erence to 1 count VCXO adjust
◦
Type: Decimal
•
Servo I gain
◦
The servo integrator gain. Default: 1.0. Use 0.0 to disable. A value of 1.0 will
accumulate 1 VCXO adjust for 1 usec time di
ff
erence at each servo update.
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NDX Manual - Setup pages
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