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Capture files
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A college of mine came home after testing on a hospital.
He brought some files captured with the the DVTk sniffer ver 2.8.14.
The manual mentions libpcap format, but what I found was that the communications were chopped up in some X_IN.pdu and X_OUT.pdu files.

It seems that the sniffer can't read its own files. Can you recommend a way to read these files?
Are we just doing something wrong?

Best regards.
Aabenbro

Posted on: 2007/12/14 13:12
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Re: Capture files
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Hi,
The pdu files saved are DICOM pdus extracted from TCP/IP packets.
This PDU stream is used by internal DVTk libraries for validation.
The libpcap format used by WinPcap library to dump DICOM PDUs from TCP/IP packets from network.
So DICOM sniffer is reading pdus internally for creating DICOM stream for input to validation library.

Can you tell me detail about the functionality you r expecting from sniffer?

Regards,
Piyush

Posted on: 2007/12/17 7:09
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Re: Capture files
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In addition to previous remarks:

There is no functionality for user to read PDU files in sniffer and perform validation.
PDU files are generated by DICOM sniffer and read by DIOCM
sniffer internally to prepare DICOM stream similar to network stream and supply it to network C++ library and then validation library.

Posted on: 2007/12/17 10:56
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Re: Capture files
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Thanks for your answers.

When I work with the DVTk sniffer I do normally evaluate the results on the run. This produces some HTML files that can be studied again later if needed.
In this case a college traveled to a customer fare away and did just capture his testing with the sniffer. The only files I got from the sniffing are some logfiles and these .pdu files.
The sniffer-software contains some tools to evaluate/analyze whatever DICOM is sniffed. I had expected that it was possible to have the sniffing raw data in a file and later load it into the evaluator part of the sniffer.
It would be nice if the raw data (or filtered raw data) was always stored with other output files e.g. as libpcap. The tool could then later read these files and do the analyzing.

Best regards
Aabenbro

Posted on: 2007/12/17 14:40
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Re: Capture files
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Normally the Sniffer can save the raw data as a capture file that can be used later for analyzing. Either something went wrong in the software or you're college made a mistake. I will check with the DVTk Team here if there is a way to use the PDU files for analyzing after all.

Posted on: 2008/1/11 9:00
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