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As part of the default sensor suite, YAF is used to generate flow records. These flow records provide significant visibility into which actors are communicating over the target network. A table panel displays the raw details of each flow record. A histogram of the duration of each flow illustrates that while most flows are relatively short-lived there are a few that are much longer in this example. Creating an index template that defined this field as numeric was required to generate the histogram.

Figure 2.4. YAF