Max did you check with ethtool if you have some drops in the NIC? And, how do you know that the packet sent have been *really* sent out?
Luca On 07 Jul 2014, at 23:33, max <[email protected]> wrote: > My packets source: > FPGA with 4x lan (SFP TL-SM311LS) > > My destination: > i7-4930K ( 6 cores with HT) > Intel 82599ES 2x2 lan (SFP TL-SM311LS) > > Metod: > > FPGA is programmed to send 512MB of data, > > on PC create 4 threaads and use this metod, based on examples > ////////////// > pfr = pfring_open('zc:ethX', 512, PF_RING_DNA_SYMMETRIC_RSS || > PF_RING_PROMISC || PF_RING_STRIP_HW_TIMESTAMP) > pfring_loop(pfr , my_callback , 0); > ////////////// > > > FPGA is programmed to send 512MB of data, I save it to file and compare with > source. > > After send data I call pfring_stats and drop is always = 0 (for all pfring) > But Received data is less , sometimes lost 144B , sometimes lost 432B ,few > frames lost. > Identical errors on all network interfaces (strange?) > > If pfring_stats return drop=0 but in my opinion few frames lost, where find > lost packets ? > > Max > > > > > > > > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
