thanks. i have a try inside vmware'VMs, mii-tool and ethtool can give more infomations about ethernet. i think it is xenserver's defect.meanwhile you can not specify a certain kind of ethernet when create VMs.
At 2012-08-23 15:47:14,"Wido den Hollander" <w...@widodh.nl> wrote: >Hi, > >On 08/23/2012 09:29 AM, coudstacks wrote: >> always error when launch mii-tool command >> >> SIOCGMIIPHY on 'eth0' failed: Operation not supported. >> >> does it matter? >> > >No, you are working with a virtual network interface inside the Virtual >Machine, that doesn't support everything a physical NIC does. > >You could try ethtool: > >$ ethtool eth0 > >Wido >