Direct Capture Mode - ProfiTap PROFISHARK 1G User Manual

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Direct Capture mode

PROFISHARK provides with the option to capture traffic without the need of a
third-party capture software. This mode of capture is accomplished on driver
level, prior to all network stacks and frame processing. With the support of
direct capture, small packet capture can be performed at full wire speed.
The generated capture file format can be chosen between the following:
- PCAP Next Generation (.pcapng),
- Libpcap nanosecond (.pcap),
- ERF (.erf).
In all capture format, the packet's timestamp are hardware generated with an
8 nanosecond accuracy. The direct capture is compatible with the different
hardware features: "Packet Slicing", "Transmit CRC errors", "Keep CRC32",
"Disable Port". Please refer to the "Features" chapter.