tmnxPtpTimeInfoMeanPathDelay

The value of tmnxPtpTimeInfoMeanPathDelay indicates the current value
of the mean propagation time between the local PTP clock and the
parent PTP clock, calculated by the local clock, as per IEEE Std
1588-2008, section 11.3.
          
It represents the 'instantaneous' value of the calculated mean path
delay, using timestamp information from the most recent exchange of
sync and delay request/response messages.  There is no filtering
applied to the received sync and delay response messages, and there is
no averaging of this calculation over multiple exchanges of sync and
delay request/response messages.
          
The time that this mean path delay was last calculated is provided in
tmnxPtpTimeInfoLastCalc.
          
The active CPM calculates the mean path delay each time the local PTP
clock and the parent PTP clock exchange sync, delay request, and delay
response messages.  The standby CPM does not calculate the mean path
delay, returning a value of 0 for tmnxPtpTimeInfoMeanPathDelay.
          
If PTP sync and delay request packets have not yet been exchanged
between the local clock and the parent clock, both
tmnxPtpTimeInfoMeanPathDelay and tmnxPtpTimeInfoLastCalc return a
value of 0.
          
This mean path delay includes cable/fiber latency in the sync and delay
request path, and includes latency within network devices that do not
correct for internal latencies.  The mean path delay does not include
latency within network devices that are PTP transparent clocks, which
correct for these internal latencies.
          
Due to packet delay variation in the PTP sync and delay request flows,
there may be significant variation between successive calculated
values of tmnxPtpTimeInfoMeanPathDelay.
          
The system does not calculate the mean path delay when
tmnxPtpClockProfile is 'g8265dot1-2010 (1)'.
          
This corresponds to the 'currentDS.meanPathDelay' data set member
defined in IEEE Std 1588-2008.
          
This object is now deprecated and replaced with
tmnxPtpTimeInfoMeanDelayNs

MIB

TIMETRA-PTP-MIB

OID

.1.3.6.1.4.1.6527.3.1.2.74.3.5.7

Type

scalar

Access

readonly

Status

current

Parent

tmnxPtpTimeInformation

Groups

1