下载解压
sudo wget http://openvswitch.org/releases/openvswitch-2.4.1.tar.gz
tar -xvf openvswitch-2.4.1.tar.gz

安装
cd openvswitch-2.4.1/
./configure
make
make install

启动(ovs每次开机都需要重新启动)
ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/db.sock \
--remote=db:Open_vSwitch,Open_vSwitch,manager_options \
--private-key=db:Open_vSwitch,SSL,private_key \
--certificate=db:Open_vSwitch,SSL,certificate \
--bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert \
--pidfile --detach
ovs-vsctl --no-wait init
ovs-vswitchd --pidfile --detach

检查是否安装成功
ovs-vsctl show