让KVM支持OpenvSwitch Bridge ( by quqi99 )
作者：张华 发表于：2013-09-29
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( http://blog.csdn.net/quqi99 )
用virt-manager工具创建的虚机不用使用openvswitch bridge, 可以添加“<virtualport type='openvswitch' />”解决。
sudo virsh edit fedora19
<interface type='bridge'>
<mac address='52:54:00:c7:13:ec'/>
<source bridge='br-phy'/>
<virtualport type='openvswitch' />
<model type='e1000'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
以上生成的 是macvtap bridge mode的虚拟网卡。
也可以直接定义一个ovs的network， 如下：
sudo apt-get install qemu-system qemu-kvm virtinst libvirt-bin openvswitch-datapath-source openvswitch-controller openvswitch-switch virt-top virt-manager python-libvirt
sudo ovs-vsctl add-br br-phy
sudo virsh net-destroy default
sudo virsh net-edit default
<network>
<name>br-phy</name>
<forward mode='bridge'/>
<bridge name='br-phy'/>
<virtualport type='openvswitch'/>
</network>
sudo virsh net-undefine default
sudo irsh net-autostart br-phy
cat /etc/network/interfaces
auto lo
iface lo inet loopback
auto br-phy
iface br-phy inet static
address 172.16.1.1
network 172.16.1.0
netmask 255.255.255.0
broadcast 172.16.1.255
iface br-phy inet6 static
address 2001:172:16:1::1
netmask 64
reboot your machine
vi /etc/network/interfaces
allow-ovs br-int
iface br-int inet manual
ovs_type OVSBridge
mtu 9000