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 ? Liuyulou
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