Surveyor

User’s Guide

File Formats

The following file formats are supported in Surveyor:

.HST Extension – Capture Files

File extension for capture data files. The .HST file contains formatting information and a list of .CAP files that contain the actual capture data. All new captures made by Surveyor are saved as .HST files.

The .HST file is a master capture management file that organizes large captures (>10M) into multiple capture (.CAP) files. When the .HST capture file is opened or when a capture buffer is opened, a histogram is displayed and the first segment of the capture (.CAP file) is decoded. The histogram is used to navigate through the multiple .CAP files as needed.

.CAP Extension – Internal Capture Files

File extension for capture data files used internally by Surveyor. Capture file format is compliant with RFC 1761, referred to as "Snoop" format. However, capture files include extensions that expand the information provided by snoop format. .CAP files are not viewed directly in this version of Surveyor, but are internal files used within .HST files. Older .CAP files opened in Surveyor are converted to the new format and are then available as .HST files.

.NAM Extension – Name Table Files

Name table files contain equivalencies between symbolic names and hexadecimal names. The name table file format is identical to .ini file format. The default hosts.nam file contains names associated with well-known hexadecimal repre- sentations. For example, BROADCAST=C000FFFFFFFF.

.CFD Extension – Capture Filters

Capture filter files contain a set of instructions internal to Surveyor that tells the software to save only a subset of the all the information on the network.

.DFD Extension – Display Filters

Display filters files contain a set of instructions internal to Surveyor that tells the software to display only a subset of previously captured data. View filters are essen- tially the same as capture filters, except that they use capture files (.CAP files) as input rather than data being captured from the network.

.TSP Extension – Transmit Specifications

Transmit specifications contain a set of instructions internal to Surveyor that will generate packets. You can create transmit specifications and generate traffic if you are running Packet Blaster plug-in.

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Finisar Surveyor manual File Formats