Hi Aritz,

> As far as I can understand, dma_writeq_full means that the card finds
> the rx_ring full and overwrites a previous packet (so that packet is
> lost). So how can the rx_discards (packets discarded) counter less
> than the dma_writeq_full counter?
>
> Thank you
> Regards
> Aritz

To decrease the packet drops on your sniffing machine, you may also
care about fast release of the rx-buffers. If you transfer packets or their
headers to the userland, you might wish to look at PF_RING socket
from the ntop projects.

I have used several client machines with pktgen to generate a high packets
load via a Cisco switch. Y may wish to monitor your switch ports statistics
to understand, what is IN and what is OUT.
--
Sincerely,
----------------------------------------------------------------
Robert Iakobashvili  - NAVIGARE NECESSE EST
coroberti at gmail dot com
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