Alfredo, At a high level, the results with pause behavior disabled is the same. However, we see a couple of interesting differences. First, the bandwidth reported by pfcount is much higher. Second, instead of seeing pause frames at the switch, we now see dropped packets being reported in pfcount.
To some extent, this is not a surprising result. The NIC is sending pause frames because its buffers are full. So it seems that we need to figure out why the NIC thinks its buffers are full and pfcount thinks that the buffers are empty. Do you have any suggestions about how to go about debugging this? Are there places in the driver that might be useful to instrument? Another observation, ARP does not seem to work between the two machines. To run our tests we've been manually seeding the ARP cache. =s= On Wed, Nov 30, 2011 at 7:11 AM, Alfredo Cardigliano <[email protected]> wrote: > Scott > please try following the order > sudo ethtool -A dna0 autoneg off > sudo ethtool -A dna0 rx off > sudo ethtool -A dna0 tx off > > Alfredo > _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
