[Winpcap-users] About the packet drops and use of pcap_stats_ex()

yulou liu lyulou at gmail.com
Mon Nov 29 22:40:46 PST 2010

I have made these experiments :

PC captures data packets  from a FPGA board.

1,  I made a Loop back test that can verify there is no packet drops
 between  FPGA TO FPGA.

2Each data packets from FPGA board has a sequence number. Then PC can
figure  that there  are  packets drops. (the packets number that pc gets
does not match the sequence of the packets).

3,  call the pcap_stats_ex() , the result  is : ps_drop=0 .  That means
there is no packets drops between the kernel buffer to  user buffer.

According  to above ,   Packet drops  could occur in  the  system netcard to
winPcap kernel driver.      Is this conclusion right ?
Is it is right ,  what is the suggestion ?    Can it be improved to use a
more professional net card  ?

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