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Logging and Reporting Polling Statistics

WhatsUp Gold lets you log and report on polling statistics to
provide a picture of how your network is performing over a selected time interval.

After WhatsUp Gold logs sufficient polling data, you can generate reports on the data, create performance graphs, or save the data to a tab-delimited file that can be imported to another application.

The following sections describe the polling statistics, how you
can change statistics logging, and how you can generate reports from the statistics. For information on performance graphs, see "Creating Performance Graphs" .

The Polling Statistics

WhatsUp Gold writes values for the polling statistics to the Statistics Log. The Statistics log stores its data in weekly file increments with the following file: ST-yyyy-mm-dd.tab. By default, the statistics data is saved to the log every hour, but you can change this interval.

WhatsUp Gold can log the following polling statistics for each device in an open map:

Average RTT. The average Round Trip Time (RTT) for polls to the device. This average is taken over the interval you specify for statistics generation. see "Changing Statistics Logging". The default value is one hour.

Maximum RTT. The highest RTT recorded for the device during the statistics interval (default is one hour).

Minimum RTT. The lowest RTT recorded during the statistics interval (default is one hour).

Percentage of missed polls. The average percentage of missed polls during the statistics interval (default is one hour).

Note that the counters shown in the Statistics Log are not the same as those shown in the Statistics Window. Counters in the Statistics Window are cumulative per device. Counters in the Statistics Log are written per device at an interval determined by the setting on the Logging dialog box of program options (Configure->Program Options->Logging, then click the Advanced button.)

Changing Statistics Logging

You can set how often you want polling data written to the Statistics log (ST-yyyy-mm-dd.tab). By default, statistics are written every hour.

To set how often to update the Statistics log:

  1. From the Configure menu, select Program Options and click Logging.
  2. In the Log type list box, select "Whatsup Statistics"
  3. Click the Advanced button
  4. In Log update interval, change the value for hours. You can set this value from 0 to 254 hours. To turn off statistics logging, set the value to zero.
  5. Optionally, click Update Log to write current statistics to the log and reset the counters for each statistic.

Creating Reports on Polling Statistics

After WhatsUp Gold has monitored a map long enough to generate statistics data, you can create reports based on the statistics.

To create a statistics report:

  1. From the Reports menu, select Statistics Report. The Statistics Report dialog box appears.
  2. Select the Map Name of the map for which you want a report..

Note: A subnetwork, or "subnet map" (child map) is a network map that is linked to another map (the "parent" map). When running a report of a parent map, keep in mind this map only provides data on the parent map devices. When running a report of a child map, keep in mind this map only provides data on the child map devices. Be sure the report you desire is run on the proper map.

  1. Select the Report Type.

    Detail. Report polling statistics for each device and sort by device name in Ascending or Descending order. The reported statistics are calculated from data in the Statistics Log. For definitions of the reported statistics, see "Statistics Report Legend" .

    Raw Data. Save the data from the Statistics Log to a tab-delimited format that can be imported by another application.
    The data is sorted by device polling order. see "Exporting Raw Data".

    Day of the Week. For each day of the week, reports are created from the values which are calculated from the polling statistics recorded in the Statistics Log.

  2. Select the Date Range for the report. When you select an option, the Start Date and End Date are shown.
  3. Click OK to generate the report.

    WhatsUp Gold generates the specified report and displays it in the report window. From the report window, you can save the data to a file, print it, or copy data to another application.

Note: If you get the message "insufficient data," it's possible that you have not monitored the map long enough to generate polling statistics.

Exporting Raw Data

As mentioned earlier, you can create a raw data file of the Statistics Report. The tab-delimited raw data file can be imported by another application, for example by a spreadsheet application.

Statistics Report Legend

The values in the statistics report are calculated from the data in the Statistics Log (ST-yyyy-mm-dd.tab). When you create a statistics report, WhatsUp Gold calculates the average daily values for each device in the selected map; the average daily values are based on the number of data samples in the Statistics Log. Thus, the report shows:

Sample. Number (n) of data samples used to calculate the averages. If you use the default for statistics generation (one hour), then if the map was monitored for all 24 hours of the day, you will have 24 samples.

Average RTT. The arithmetic mean of n samples of Round Trip Time (RTT).

Average Maximum RTT. The arithmetic mean of n samples of Maximum RTT.

Average Standard Deviation. The standard deviation of the RTT values.

Average Minimum RTT. The arithmetic mean of n samples of Minimum RTT.

Average Percentage of Missed Polls. The arithmetic mean of n samples of the percentage of missed polls.


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