cat /etc/sysconfig/network-scripts/ifcfg-eth0
    DEVICE=eth0
    TYPE=OVSPort
    DEVICETYPE=ovs
    NAME=eth0
    OVS_BRIDGE=br0
    ONBOOT=yes


cat /etc/sysconfig/network-scripts/ifcfg-br0
    DEVICE=br0
    DEVICETYPE=ovs
    TYPE=OVSBridge
    BOOTPROTO=static
    IPADDR=192.168.1.89
    NETMASK=255.255.255.0
    GATEWAY=192.168.1.1
    DNS1=192.168.1.2
    DNS2=8.8.8.8
    ONBOOT=yes