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SHMIF_DUMPBUS(1)	  BSD General Commands Manual	      SHMIF_DUMPBUS(1)

NAME
     shmif_dumpbus — examine shmif bus contents

SYNOPSIS
     shmif_dumpbus [-h] [-p pcapfile] busfile

DESCRIPTION
     The shmif_dumpbus utility examines the bus of an shmif(4) Ethernet inter‐
     face.  The most useful feature is converting the bus to the pcap(3) file
     format for later examination.  shmif_dumpbus itself is limited to dis‐
     playing only very basic information about each frame.

     shmif_dumpbus accepts the following flags:

     -h		     Print bus header only and skip contents.

     -p pcapfile     Convert bus contents to the pcap(3) format and write the
		     result to pcapfile.  The file - signifies stdout.

EXAMPLES
     Feed the busfile contents to pcap:

	   $ shmif_dumpbus -p - busfile | tcpdump -r -

SEE ALSO
     pcap(3), shmif(4), tcpdump(8)

CAVEATS
     shmif_dumpbus does not lock the busfile and is best used for post-mortem
     analysis of the bus traffic.

     The timestamp for each frame contains the sender's timestamp and may not
     be monotonically increasing with respect to the frame order in the dump.

BSD			       January 12, 2011				   BSD

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