Finisar Surveyor - Manual (Page 167)

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Capture and Display Filters
Hints and Tips for Using Filters
7
Hints and Tips for Using Filters
• Remember to load the Capture filter on the module before you start capture.
• If you want to look at captured data in many different ways, use display filters
rather than capture filters. Capture large blocks of unfiltered data and look at
different subsets of the data by using a variety of display filters.
• Use the Template Description button to find out the exact mask and logical
operations in a filter template.
• Use conversations for capturing or displaying station-to-station or router-to-
router activity.
• Always attach a description to a filter you are saving with the Description
menu.
• To see which capture filter is associated with the current resource, choose
Active TSP and Capture Filter from the Module menu. The capture filter name is
also displayed in the status bar in Detail view.
• In the Filter Design window, make sure that the templates you want in the filter
are displayed in the Template Combination box. If a template is not displayed in
the Template Combination box, it is not part of the filter to be applied.
• Be sure to click the Apply Conversation to Template check box to include a con-
versation as part of your filter.
• AND operations narrow the search results and are typically used between tem-
plates that define masks for different offsets and lengths. Using AND opera-
tions between filter templates that define masks for the same offsets and lengths
will result in a pattern-conflict warning message.
• OR operations expand the search results and are useful between filter templates
that define masks for the same offsets and lengths.
• To edit a statement in the Filter States Design window, double-click on the
statement.
• Use the right mouse button to learn about the options available for any state-
ment in a filter. You can immediately see what options are possible depending
on what type of statement is selected.
• Use the button to add states or statements to the Filter States Design win-
dow.