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User Guide
236
Delay req. PTD
(minimum)
Minimum value of Delay req. PTD (current) registered from
the beginning of the test.
The Delay req. PDV (minimum) is computed both in slave
emulation and test modes.
Delay req. PTD
(average)
Mean value of the PTD computed over all Delay req. mes-
sages transmitted from the beginning of the test.
Delay req. PTD
(std. dev.)
Standard deviation of the PTD computed over all Delay
request messages received from the beginning of the test.
This metric is computed when the equipment is operating in
IEEE 1588 slave clock emulation or in test mode.
Delay req. PTD
(range)
Difference between Delay req. PTD (maximum) and Delay
req. PTD (minimum).
This metric is computed only in slave emulation and test
modes.
Two-way PTD
(current)
This result is computed as the sum of the Sync PTD (current)
and Delay req. PTD (current). It is an estimation of the time
invested by a two-way IEEE 1588 packet transmission
between the master and the slave.
This metric is computed in slave emulation mode and in test
mode
Two-way PTD
(minimum)
This result is computed as the sum of the Sync PTD (mini-
mum) and Delay req. PTD (minimum). It is an estimation of
the minimum time invested by a two-way IEEE 1588 packet
transmission between the master and the slave.
This metric is computed in slave emulation mode and in test
mode.
Two-way PTD
(average)
Metric calculated as the sum of the Sync PTD (average) and
Delay req. PTD (average). It is an estimation of the average
time invested by a two-way IEEE 1588 packet transmission
based on the packets collected from the beginning of the
test.
The Two-way PTD (average) is computed in slave emulation
mode and in test mode.
Table 9.7: IEEE 1588 Delay Statistics
Result Description
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