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Mining data from your GigaStor
Chapter 7: Mining GigaStor Data 223
This option: Allow you to do this:
Third Party Decoder Observer allows you to use other software to view packet
decodes if you wish. 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 and click the
Third Party Decoder tab. 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.
Remember Analysis
Options and Type
The selected the last analysis options are used for any
subsequent analysis. This is useful if you typically use the same
analysis options repeatedly.
Selecting a time frame to analyze
The GigaStor Control Panel has two graphs along the top: a Detail Chart and
below it a Outline Chart. The Detail chart shows a shorter time frame. The
Outline Chart shows a longer time frame with the Detail Chart being a portion of
time from within Outline Chart.
You can configure the resolution of Detail Charts by clicking the “Screen
resolution” option and using the slider to pick a time resolution. It can be
anything from 8 hours/8 weeks so that you can see longer term trends to as
short as 10 nanoseconds/500 nanoseconds to focus on specific issues. At the
shorter time resolutions you can enable microburst analysis. The “Data type” list
specifies what type of data appears in the Detail Chart.
You can configure the amount of time shown on the Outline Chart by right-
clicking it and choosing “Outline Time Resolution.” It is measured in multiples of
the Detail Chart. You may also choose to show packets or load in the chart.
Tip!
If you know the time when something occurred that you want to
investigate, you can jump to that time by right-clicking the Detail Chart and
choosing Go to Specific Time.
How to reorder packets based on a trailer timestamp
You can change how Observer filters and sorts packets in the Decode pane based
on a timestamp from your switch aggregator rather when GigaStor saw the
packets.
Reordering packets is limited to post capture analysis only; it does not affect
real-time analysis, triggers and alarms, or trending analysis. If you save a packet
capture after it has been reordered using this option, the packets are saved in the
reordered series. If you load a saved, reordered packet capture, then analysis is
based on the reordered time frames and not the time stamps from the GigaStor.
1. In the GigaStor Control Panel, select the time range of traffic you want to
decode and click Analyze .
GigaStor Analysis Options opens with the start and end time selected.
2. Select a filter type.
3.
Select
Reorder and filter based on trailer timestamp
and click Settings.
Trailer Timestamp Settings opens.