The maximum allowed jitter in the round trip time over the course
of any test. Jitter is defined as the difference between the
maximum and minimum round trip times measured over the course of
a single test (jnxPingResultsMaxRttUs minus jnxPingResultsMinRttUs).
If the measured jitter exceeds this threshold, a
jnxPingRttJitterThresholdExceeded trap will be sent.