Sniffer® Portable Professional User's Guide - NetScout

Figure 9-1. Real-time Decodes Window Example
Scrolling Modes in Real-time Decodes
Working with Real-Time Decodes
Like the traditional Sniffer post-capture Decode window, the Real-time
Decode window (Figure 9-1 on page 215) has three panes: Summary,
Detail, and Hex. When Real-time decodes are enabled and new network
packets come in, the Summary pane is updated.
In Live scroll mode you see the network packets from top to bottom in
the order they were received. When new packets come in, the Decode
window automatically starts scrolling upward and older packets are
removed from the Summary pane. The refresh interval rate is set in the
Real-Time tab of the Options dialog box. See Enabling and Setting
Real-time Decodes on page 213 for detailed information.
When the Decode screen refreshes, the Summary pane displays the last
set of network packets that were received in the interval period. Please
note, if the Summary pane is limited to displaying 20 lines for 20 packets
and the most recent interval period contained 500 packets, then the
Summary pane displays packets 481 to 500. During the next interval,
250 more packets are received. The Summary pane automatically
updates and displays packets 731 to 750.
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