KVM, Virtualized Interface, Dropped Packets.

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Hi All.

I have currently a small problem to solve. I have a kvm virtual machine which in output of ifconfig eth0 | egrep ‘RX packets|TX packets’
RX packets:792681304 errors:0 dropped:560728 overruns:0 frame:0
TX packets:716661674 errors:0 dropped:0 overruns:0 carrier:0
show dropped packets. I think that rx buffer is to small (no strange messagess in dmesg) and would like to make it larger. But when I try a solution from http://www.scottalanmiller.com/linux/2011/06/20/working-with-nic-ring-buffers/
I get:
ethtool -g eth0
Ring parameters for eth0:
Cannot get device ring settings: Operation not supported

So what is the proper way to make rx buffers larger in this situation?

Best regards, Rafal Radecki.