Charles.Tsai-蔡清海-研究發展部 <charles.t...@cloudena.com> writes:

> We recently ran an Ubuntu 11.10 VM which was installed with VirtIO NIC 
> driver. The VirtIO net driver came from the Ubuntu's default package. The VM 
> we installed was configured as a bridge mode. When we ran the Iperf test 
> against the VM, the network interface of the VM was fairly unstable. 
> Sometimes, the network interface of the VM could not receive the packets and 
> we needed to bright the network interface down and up in order to make it 
> work. After we replaced the VirtIo Net driver with ne2k driver and it worked 
> quite stably now.
>
> We know that the performance of virtIO is much better than ne2k in virtual 
> environment. We would like to use virtio driver instead. If this is the 
> virtio driver issue, can you tell us where to get the latest virtIO driver 
> for Ubuntu VM? Otherwise, tell us how to make the virtio net driver work in 
> Ubuntu VM if you have ever had similar issue before.
>
> The version of Qemu installed in Ubuntu is 0.14.1.
>
The virtio driver is implemented in the guest operating system, it's a
kernel module, so what is your kernel version? Maybe you need a kernel
of higher version.
-- 
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