IP SLA Test Statistics

Property

Description

Number of Groups

(rttMonStatisticsAdminNumHourGroups)

The maximum number of groups of paths to record. Specifically this is the number of hourly groups to keep before rolling over.  

The value of one is not advisable because the group will close and immediately be deleted before the network management station will have the opportunity to retrieve the statistics.

The value used in the statistics table (rttMonStatsCaptureTable) to uniquely identify this group is the statistics table using index ( rttMonStatsCaptureStartTimeIndex).

HTTP and Jitter probes store only two hours of data.

When this object is set to the value of zero all statistics table data capturing will be shut off.

Number of Paths

(rttMonStatisticsAdminNumPaths)

When the test Type is 'pathEcho' this is the maximum number of statistics paths to record per hourly group. This value directly represents the path to a target. For all other Types this value will be forced to one by the agent.

NOTE: For 'pathEcho' a source to target path will be created to hold all errors that occur when a specific path or connection has not been found/setup. Thus, it is advised to set this value greater than one.

Since this index does not rollover, only the first Number of Paths will be kept.

Number of Hops

(rttMonStatisticsAdminNumHops)

When the test Type is 'pathEcho' this is the maximum number of statistics hops to record per path group. This value directly represents the number of hops along a path to a target, thus we can only support 30 hops. For all other Types this value will be forced to one by the agent.

Since this index does not rollover, only the first Number of Hops will be kept. This object is applicable to 'pathEcho' probes only.

Number of Distribution Buckets

(rttMonStatisticsAdminNumDistBuckets)

The maximum number of statistical distribution buckets to accumulate.

Since this index does not rollover, only the first Number of Distribution Buckets will be kept.

The last bucket will contain all entries from its distribution interval start point to infinity. This object is not applicable to http and jitter probes.

Distribution Buckets Interval

(rttMonStatisticsAdminDistInterval)

The statistical distribution buckets interval.

Distribution Bucket Example:

Number of Distribution Buckets = 5 buckets

Distribution Buckets Interval = 10 milliseconds

| Bucket 1 | Bucket 2 | Bucket 3  | Bucket 4  | Bucket 5  |

|  0-9 ms  | 10-19 ms | 20-29 ms | 30-39 ms | 40-Inf ms |

Odd Example:

Number of Distribution Buckets = 1 buckets

Distribution Buckets Interval = 10 milliseconds

| Bucket 1  |

|  0-Inf ms |

Thus, this odd example shows that the value of Distribution Buckets Interval does not apply when Number of Distribution Buckets is one.

This object is not applicable to http and jitter probes.