Endace DAG 5.2X, User Manual

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EDM01-33v1 DAG_7.5G4_Card_User_Guide
©2008 Endace Technology Ltd. Confidential - Version 1 - November 2008 53
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 7.5G4 supports the following ERF Types:
ERF Type Description
2
TYPE_ETH
Ethernet Variable Length Record
16
TYPE_DSM_COLOR_ETH
Ethernet Variable Length Record
The ERF file contains a series of ERF records with each record describing one packet. ERF
files consists only of ERF records, there is no file header or trailer. This allows for simple
concatenation and splitting of files to be performed on ERF record boundaries.
For information on other ERF types, please refer to
EDM11-01 ERF types .
The DAG 7.5G4 does not use Extension headers.