Network Instruments GigaStor User Manual page 34

This option...
Microburst analysis
Trading Multicast
analysis
IPTV analysis
4G LTE analysis
Multiple GigaStor
analysis
Third Party Decoder
34 | GigaStor™ (pub. 25.Apr.2014)
Allow you to do this...
regulations like Sarbanes Oxley or HIPPA requirements. Using network forensics
you can provide pre-intrusion tracking and identification while delivering a paper
trail after any intrusion. Or you can perform network troubleshooting using root-
cause analysis and identify network problems that have been around awhile. See
Examining your network traffic with forensic analysis (page
Analyzes the selected time frame for any microbursts (as defined in the
Microburst Analysis Settings dialog) and displays the results in the Microburst
Analysis tab of the GigaStor Control Panel. This is an easier way to find
microbursts across a much longer time frame than using the Detail Chart where
the longest time frame that can be analyzed is 15 minutes. Use this option if you
need to monitor applications that are sensitive to microbursts, such as financial,
audio, video, or multicast applications. See
52).
Analyzes the selected time frame for trading multicast streams issues on your
network specifically related to stock exchanges. The streams can be analyzed for
tracking UDP sequence numbers, multiple protocol data units (PDUs) within a
UDP packet, and stream type or ID. Use this option if you want to analyze any of
the Trading Multicast streams Observer supports.
Analyzes the selected time frame for IPTV traffic on your network. IPTV is
configured by providing the multicast stream IP (or range of IPs) and, optionally,
the UDP ports used to transport the content, along with the receive capabilities of
the devices consuming the IPTV feeds. These settings allow Observer to identify
IPTV traffic of interest (the IP and UDP ports) and to accurately calculate metrics
about the quality of the feed for the endpoints, such as MDI, by providing the
Delay Factor and Media Loss Rate information.
Analyzes the captured 4G LTE traffic from the selected time frame. The 4G traffic
can be filtered by IMSI and you can choose to exclude devices rejected from your
4G LTE network. Use this option if you want to analyze 4G LTE traffic for control
or data plane issues or to isolate a specific end user's quality issues. See
analyze 4G LTE traffic from your GigaStor (page 41)
Combines and analyzes data streams from two or more active probe instances.
The active probe instances are typically from multiple GigaStor probes, but can
also be from the same GigaStor probe. Use this option if your GigaStor probes
captured the same data from two or more perspectives and you want to compare
them using MultiHop Analysis. The MultiHop Analysis can be based on IP, IP
Pair, IP port, or a filter. Or use it when two or more perspectives are capturing
different parts of the same communication (one send and the other receive; or
50% of the connections to an application on one and 50% on the other) and you
want to combine the data to get a complete picture of the communication. This
might be due to the way traffic was routed (and eventually captured) or part of an
architectural decision to load balance the traffic across multiple physical capture
appliances.
Observer allows you to use other software to view packet decodes if you wish,
although Observer's expert information is not available. You might do this
because the other tool's interface or workflow. This option is only available if the
Third Party Decoder option has already been enabled in Options > Observer
General Options > Third Party Decoder. By default the menu text is "Decode
Capture File using Wireshark," but is completely configurable. See for details on
how to change the menu text and what application is used.
44).
Searching for microbursts (page
for more details.
How to