Hello all...
--On 03 March 2010 15:58 +0200 Beyers Cronje <[email protected]> wrote:
I presently do not have TNAPI but am considering using it if it gives
better throughput.
- 'insmod pf_ring.ko transparent_mode=1': PF_RING-aware driver copies
the packets into PF_RING, while the same packet is still passed to
TNAPI - 'insmod pf_ring.ko transparent_mode=2': PF_RING-aware driver
copies the packets into PF_RING, no the packet still is passed to
TNAPI
I'm not using TNAPI but my reading of the above (which seems to correspond
to
my testing) is that with 'transparent_mode=2' and a PF_RING-aware NIC driver
then non-PF_RING-aware applications see no packets at all.
With the other two modes PF_RING-aware applications function better but
just running a standard tcpdump up will see some traffic as well.
Part of my confusion is that at the moment I'm rmmod'ing the NIC driver,
inserting the pf_ring driver (with transparent_mode=2) and then insmod'ing
the NIC driver again and doing 'ifconfig up' before it sees the traffic.
If I reboot my machine and the NIC driver is insmod'ed before pf_ring
then it sees nothing at all.
--
Peter Bates, Network Support & Development Officer
Goldsmiths, University of London
New Cross, London SE14 6NW. Telephone: 020 7919 7082
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