Re: [kvm-devel] Strange networking behavior

[Jim P. <ji...@jt...>]

Peter Osuchowski wrote:
> talithaA ~ # ping 10.0.1.1
> PING 10.0.1.1 (10.0.1.1) 56(84) bytes of data.
> 64 bytes from 10.0.1.1: icmp_seq=1 ttl=64 time=850 ms
> 64 bytes from 10.0.1.1: icmp_seq=2 ttl=64 time=389 ms
> 64 bytes from 10.0.1.1: icmp_seq=3 ttl=64 time=0.353 ms
> 64 bytes from 10.0.1.1: icmp_seq=4 ttl=64 time=0.366 ms
> 64 bytes from 10.0.1.1: icmp_seq=5 ttl=64 time=0.361 ms
...
> The two networks above (10.0.0.0/8 and 172.16.1.0/24) are on seperate Qemu 
> VLANs. The hardware is a Dual Quad-Core Opteron 2210 server and I'm using the 
> default (NE2000) virtual NICs. The host machines have no networking problems.

The NE2000 code appears to be very broken.  Use rtl8139 instead and
you should get better results.

-jim