Sophie: ksnuffle-2.2-6mdk i586

ksnuffle-2.2-6mdk.i586.rpm

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    <TITLE>KSnuffle: Graphic Display</TITLE>
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    <H3>
      <A NAME="ss4.6"></A>4.6 Graphic Display
    </H3>
    <P>
      The per-monitor graphic display page shows two groups
      of a histogram and two load bars, for a <I>sniffer</I> or
      <I>replayer</I>.
    </P>
    <P>
      <A HREF="graphic.html" target="Graphic Display">Click for full size
      image</A><IMG SRC="graphic_s.png">
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    <P>
      The left-hand group shows the network traffic associated with
      captured packets; in these, blue is used to indicate data,
      and red for network overhead. Note that the overhead is the extra data
      that is wrapped around a packet when it is transferred over the network.
      Protocol overheads, such as TCP/IP and UDP/IP headers count as data in
      this context.
    </P>
    <P>
      The right-hand group shows counts of captured packets.
    </P>
    <P>
      Configuration is controlled from the common configuration page.
      Three values an be set:
      <UL>
	<LI><B>Histogram period</B><BR>
	  This is the interval, in seconds, at which the histogram
	  shifts across.
	</LI>
	<LI><B>LoadBar 1 period</B><BR>
	  The load bar shows a time-averaged loading. The load bar is
	  updated once per second, but shows the average load over
	  the last <I>N</I> seconds, where <I>N</I> is set from this value.
	</LI>
	<LI><B>LoadBar 2 period</B><BR>
	  Similarly for the second load bar.
	</LI>
      </UL>
    </P>
    <P>
      The histogram and load bars automatically rescale as the network load
      changes. The current range is show by the top-left hand corner of
      the histogram, in bytes/sec. The total width of the histogram in
      seconds, and the time average periods of the load bars in seconds, are
      shown immediately below the displays. The scale is also available as a
      tool tip in each display (ie., point the mouse into the display, and
      then let it remain stationary for a second or two).
    </P>
    <P>
      Note that changes to these value only apply once the <B>Set</B> and
      <B>Go</B> buttons have been pressed.
    </P>
    <P>
      The time-averaged total network traffic values of the currently
      selected <I>sniffer</I> or <I>replayer</I>, as shown in the two
      load bars in the left-hand group, are displayed in the status bar.
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