EDM01-36v10 DAG_9.2X2_Card_User_Guide - Data formats
©2010 - 2012 Endace Technology Ltd. Confidential - Version 10 - May 2012
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Data formats
Overview
The DAG Card produces trace files in its own native format called ERF (Extensible Record Format). The
ERF type depends upon the type of connection you are using to capture data.
The DAG 9.2X2 supports the following ERF Types:
ERF Type
Description
2
TYPE_ETH
Ethernet Variable Length Record
An ERF file contains a series of ERF records, with each record describing one packet. An ERF file consists
only of ERF records, and has no file header or trailer. This allows for simple concatenation and splitting of
files to be performed on ERF record boundaries.
ERF records have generic headers, and optional extension headers. The DAG 9.2X2 does not by default
provide extension headers to the user.
For information on other ERF types, please refer to
EDM11-01 ERF Types
.
