System information

Using Real-Time Expert 281
Using Real-Time Expert
Real-Time Expert analyzes all captured packets and each captured packet’s contents in
order to identify problems.
Functional Overview
There are a number of ways to approach a network problem with Real-Time Expert. As
with any network problem, you should first determine if you can reproduce the problem. If
you can reproduce the problem, set up a capture to collect data for the entire event (start to
finish) and then use the Expert in post capture mode to identify possible causes of the
event. Each section of the Expert is designed to shed light on different possible problems.
If the problem cannot be reproduced, it is often possible to run the Expert in real-time
analysis mode to see if you can gather more information about the problem when it
happens, or if there are other, more general, network problems occurring that could be
influencing your network performance.
In addition to finding the source of a problem, Real-Time Expert also offers a number of
modeling features designed to help predict what changes on your network/WAN’s
configuration (e.g., from 10MB to 100MB) to response time or bandwidth utilization. This
“live modeling” is based on a sample of your network data and projections can be made to
simulate more users or slower WAN connects.
Expert Summary, Expert Events, and Expert Analysis
Real-Time Expert is divided into three areas: Expert Summary, Expert Events, and Expert
Analysis.
Packets
processed
display
header
Expert
button bar
Expert
Analysis pane