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IP SLA VoIP Jitter Report - Avg

When preparing a custom table, in the data source picker dialog, there is an option to report on "IP SLA VoIP Jitter Operation View".

This specific data source contains two columns called "AVG JITTER" and "MAX JITTER" for each row, as well as a "SUMMARY DATE" which indicates for which day these values are for.

It is clear that the "MAX JITTER" column in this data source for a given day is computed by looking at the hourly data collected in the table "Orion.IpSla.JitterOperationResultsHourly" for the same day and picking the maximum value of the "MaxJitter" for a given operation.

However, we are not sure how the "AVG JITTER" field is calculated. The database name ("AVERAGEofAvgJitter") suggests that taking a mean average of the "AvgJitter" field in the "Orion.IpSla.JitterOperationResultsHourly" for a given day should give the same result as the "AVERAGEofAvgJitter" value as reported by "IP SLA VoIP Jitter Operation View" for a given operation, however it reports a different value.

Therefore our question is, how is this field calculated?

Orion.IpSla.