I have the following situation, I have a virtualization environment, the host is Ubuntu
Host information:
uname -a
Linux asic 2.6.32-38-generic #83-Ubuntu SMP Wed Jan 4 11:12:07 UTC 2012 x86_64 GNU/Linux
mii-tool
eth0: negotiated 1000baseT-FD flow-control, link ok
eth1: negotiated 1000baseT-FD flow-control, link ok
eth2: no link
eth3: no link
and when executing ethtool command also works perfectly ,
guests information:
uname -a
Linux questa.silminds.com 2.6.18-128.el5 #1 SMP Wed Dec 17 11:41:38 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
mii-tool
SIOCGMIIPHY on 'eth0' failed: Operation not supported no MII interfaces found
ethtool
Settings for eth0:
No data available
and when i try to set the network card interface settings using
ethtool -s etho speed 1000 duplex full
Cannot get current device settings: No such device
not setting speed
not setting duplex
some details :
host is ubuntu 10.04 LTS
kvm version is version 0.12.3 (qemu-kvm-0.12.3)