Hi COS,
@all:
sorry to reply to such an old thread, but we have the exact same problem here.
I stumbled upon your thread while I was googling for this exact problem, because we are experiencing the same issue in our VMware-environment currently.
As I did not find any similar threads:
Have you found a solution to this problem back in 2012 and how did you solve it?
I also suspect the network hardware to be the problem, but of course I need a prove to give to the network admins before they start analyzing on their side...
Would be very nice to hear from you as we are currently in the dark with this phenomenon.
Thanks in advance!
Cheers, RSNTeam