IPSLA UDP Jitter Statistics - ASR9K

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For a technical analysis see: IOS IP SLAs UDP Jitter Operation Technical Analysis.

Jitter

Jitter is inter-packet delay variance, i.e. the distance between successive packets.

Jitter Statistics
Statistic What it means
NumOfJitterSamples The number of jitter samples collected. This is the number of jitter samples that are used to calculate the following jitter statistics.
MinOfPositivesSD The minimum of positive jitter values from source to destination, in milliseconds
MaxOfPositivesSD The maximum of positive jitter values from source to destination, in milliseconds.
NumOfPositivesSD The number of jitter samples from source to destination that are positive (i.e., network latency increases for two consecutive test packets)
SumOfPositivesSD The sum of those positive jitter values (in milliseconds).
Sum2PositivesSD The sum of squares of those positive values.
MinOfNegativesSD The minimum of negative jitter values from source to destination. The absolute value is given.
MaxOfNegativesSD The maximum of negative jitter values from source to destination. The absolute value is given.
NumOfNegativesSD The number of jitter values from source to destination that are negative (i.e., network latency decreases for two consecutive test packets).
SumOfNegativesSD The sum of negative jitter values.
Sum2NegativesSD The sum of the squares of negative jitter values.
Interarrival jitterout The source to destination (SD) jitter value calculation, as defined in RFC 1889.
Interarrival jitterin The destination to source (DS) jitter value calculation, as defined in RFC 1889.

One Way Jitter

One Way Values Indicates that one way measurement statistics appear on the following lines.

One Way (OW) Values are the amount of time it took the packet to travel from the source router to the target router (SD) or from the target router to the source router (DS).

One Way Values
Statistic What it means
NumOfOW Number of successful one way time measurements.
OWMinSD Minimum time from the source to the destination.
OWMaxSD Maximum time from the source to the destination.
OWSumSD Sum of the OWMinSD and OWMaxSD values.

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