PTP - Master
Priority 1
The priority field affects the result of the Best Master Clock Algorithm. The lower number in
this field will win the BMC calculation. The initialization value of priority1 is specified in a PTP
profile. Choices are:
l 0 – 255
l Default is 128
Priority 2
The priority field affects the result of the Best Master Clock Algorithm. The lower number in
this field will win the BMC calculation. The initialization value of priority2 is specified in a PTP
profile. Choices are:
l 0 – 255
l Default is 128
Domain Number
A domain consists of one or more PTP devices communicating with each other as defined by
the protocol. A domain defines the scope of PTP message communication, state, oper-
ations, data sets, and timescale. PTP devices may participate in multiple domains; however,
unless otherwise specified in the standard, the operation of the protocol and the timescale in
different domains is independent.
The configurable range is 0 – 255
l Default is 0
Mean Announce Message Transmit Interval
This is the Announce Interval specified in IEEE 1588-2008 and is specified as the mean time
interval between successive Announce messages.
Selections available:
l 1 sec
l 2 sec
l 4 sec
l 8 sec
l 16 sec
l 32 sec
l 64 sec
l Default is 2 seconds
Announce Receipt Timeout Multiplier
The value of Announce ReceiptTimeout is an integral multiple of the announceInterval (see
section 7.7.3.1 of IEEE 1588-2008).
997-01520-02 Rev. F1.......................................................................... Page 57
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