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CA Network Flow Analysis - 9.3.2
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View Flow Statistics

Last update July 15, 2015

View the Flow Statistics page at any time to view the flow rates on a per harvester basis.

Flow Rate by Harvester

An interactive time series graph at the top of the screen that contains flow rates for each harvester on a single graph. This view defaults to showing data over the last 24 hours, with selectable time periods. You can hover over a point on the graph to see the Harvester name, data point value, date, and time.

The interactive legend (to the right of the graph) allows you to control which Harvesters are included in the graph. Click the check mark next to the Harvester name to add or remove it from the graph. Click a Harvester name to display only that Harvester in the graph.

The graph types are:

  • area
  • bar
  • line
  • scatter

Within each graph type you can define the form (not all forms are available for all graph types):

  • stack
  • stream
  • pct
  • value

Within each form you can define the line smoothing method (not all methods are available for all forms):

  • cardinal
  • linear
  • step

The range slider (under the graph) allows you to zoom in to the data that is shown in the graph.

Time Period

The time period is defined as the time specified by the From and To date and time. Selecting the time period allows you to compress or expand the amount of data shown in the graph. Different time periods use different data intervals:

Time Period Data interval
24 hours or less 5 Minute Data
24 hours to 1 week 15 Minute Data
1 to 2 weeks 30 Minute Data
Greater than 2 weeks 60 Minute Data

Only one month of data (rolling month) is kept in the database.

Update

Clicking Update reloads the graph with the most current data based on the time period. Because it updates the data, it resets the Harvester selections and closes any tables opened from the Flow Statistics by Harvester table.

Flow Statistics by Harvester - <time period>

A table view that contains individual harvesters with all of the processing metrics above i.e. dropped flows, dropped packets, map failures, etc. This view defaults to showing data over the defined time period.

    • IP
      The IP address of the Harvester 

    • Description
      The name of the Harvester (the name used in the interactive legend).
    • Min Flow Rate
      The minimum flow rate for the Harvester, in the defined time period. 

    • Max Flow Rate
      The maximum flow rate for the Harvester, in the defined time period.

    • Avg Flow Rate
      The average flow rate for the Harvester, in the defined time period.

    • 95th Pct Flow Rate
      The 95th percentile flow rate for the Harvester, in the defined time period.

    • Routers
      The number of routers on the Harvester, in the defined time period.

    • Interfaces
      The number of interfaces on the Harvester, in the defined time period.

    • Dropped Flows
      The number of dropped flows on the Harvester, in the defined time period.

    • Dropped Packets
      The number of dropped packets on the Harvester, in the defined time period.

    • Map Failures
      The number of interfaces new to the Harvester, in the defined time period.
       A poll is scheduled to determine if interfaces need to be remapped or not.

    • No Flows Found
      The number of NetFlow FlowSets that had either no content or invalid content for the Harvester, in the defined time period.

    • Header Failures
      The number of NetFlow header parse failures for the Harvester, in the defined time period.

    • Router Reboots
      The number of times the Harvester detected that a router has been rebooted, in the defined time period.
      This could indicate device or NetFlow configuration issues, or normal behavior if planned maintenance is being performed. 

Clicking a row in the Flow Statistics by Harvester table displays the Router Information table for that Harvester.

Clicking a row in the Router Information table displays the Interface Information table for that router.


Follow these steps:

  1. Display the Flow Statistics page:
    1. Select Administration from the NFA console menu.
      The System Status page opens.
    2. Select Administration: Health, Flow Statistics from the Administration menu on the left.
      The Flow Statistics page opens.
  2. The Flow Rate by Harvester chart defaults to area, stack, cardinal, Daily. Select the graph, form, and smoothing method.
  3. Specify the Time Period.
  4. Click Update. The graph and table update with the latest information available for the requested time period.

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